24 results on '"Tomografía"'
Search Results
2. Cervical computed tomography in patients with obstructive sleep apnea: influence of head elevation on the assessment of upper airway volume
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Fábio José Fabrício de Barros Souza, Anne Rosso Evangelista, Juliana Veiga Silva, Grégory Vinícius Périco, and Kristian Madeira
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Apneia do sono tipo obstrutiva/prevenção & controle ,Apneia do sono tipo obstrutiva/terapia ,Tomografia ,Diseases of the respiratory system ,RC705-779 - Abstract
Objective : Obstructive sleep apnea syndrome (OSAS) has a high prevalence and carries significant cardiovascular risks. It is important to study new therapeutic approaches to this disease. Positional therapy might be beneficial in reducing the apnea-hypopnea index (AHI). Imaging methods have been employed in order to facilitate the evaluation of the airways of OSAS patients and can be used in order to determine the effectiveness of certain treatments. This study was aimed at determining the influence that upper airway volume, as measured by cervical CT, has in patients diagnosed with OSAS. Methods : This was a quantitative, observational, cross-sectional study. We evaluated 10 patients who had been diagnosed with OSAS by polysomnography and on the basis of the clinical evaluation. All of the patients underwent conventional cervical CT in the supine position. Scans were obtained with the head of the patient in two positions (neutral and at a 44° upward inclination), and the upper airway volume was compared between the two. Results : The mean age, BMI, and neck circumference were 48.9 ± 14.4 years, 30.5 ± 3.5 kg/m2, and 40.3 ± 3.4 cm, respectively. The mean AHI was 13.7 ± 10.6 events/h (range, 6.0-41.6 events/h). The OSAS was classified as mild, moderate, and severe in 70%, 20%, and 10% of the patients, respectively. The mean upper airway volume was 7.9 cm3 greater when the head was at a 44° upward inclination than when it was in the neutral position, and that difference (17.5 ± 11.0%) was statistically significant (p = 0.002). Conclusions : Elevating the head appears to result in a significant increase in the caliber of the upper airways in OSAS patients.
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- 2016
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3. Clinical application of CT and CT-guided percutaneous transthoracic needle biopsy in patients with indeterminate pulmonary nodules
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Luciana Vargas Cardoso and Arthur Soares Souza Júnior
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Nódulo pulmonar solitário ,Tomografia ,Biópsia guiada por imagem ,Diseases of the respiratory system ,RC705-779 - Abstract
OBJECTIVE: To investigate the clinical application of CT and CT-guided percutaneous transthoracic needle biopsy (CT-PTNB) in patients with indeterminate pulmonary nodules (IPNs). METHODS: We retrospectively studied 113 patients with PNs undergoing CT and CT-PTNB. Variables such as gender, age at diagnosis, smoking status, CT findings, and CT-PTNB techniques were analyzed. Data analysis was performed with the Student's t-test for independent samples the chi-square test, and normal approximation test for comparison of two proportions. RESULTS: Of the 113 patients studied, 68 (60.2%) were male and 78 (69%) were smokers. The diameter of malignant lesions ranged from 2.6 cm to 10.0 cm. Most of the IPNs (85%) were located in the peripheral region. The biopsied IPNs were found to be malignant in 88 patients (77.8%) and benign in 25 (22.2%). Adenocarcinoma was the most common malignant tumor, affecting older patients. The IPN diameter was significantly greater in patients with malignant PNs than in those with benign IPNs (p < 0.001). Having regular contour correlated significantly with an IPN being benign (p = 0.022), whereas spiculated IPNs and bosselated IPNs were more often malignant (in 50.7% and 28.7%, respectively). Homogeneous attenuation and necrosis were more common in patients with malignant lesions (51.9% and 26.9%, respectively) CONCLUSIONS: In our sample, CT and CT-PTNB were useful in distinguishing between malignant and benign IPNs. Advanced age and smoking were significantly associated with malignancy. Certain CT findings related to IPNs (larger diameter, spiculated borders, homogeneous attenuation, and necrosis) were associated with malignancy.
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- 2014
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4. PET/TC e mediadores inflamatórios na doença pulmonar intersticial associada à esclerose sistêmica
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Andréa L Bastos1, Gilda A Ferreira2, Marcelo Mamede1, Eliane V Mancuzo3, Mauro M Teixeira4, Flávia P S T Santos5, Cid S Ferreira6, and Ricardo A Correa3
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Adult ,Scleroderma, Systemic ,Scleroderma, systemic ,Tomografia ,Doenças pulmonares intersticiais ,Citocinas ,Escleroderma sistêmico ,Ligands ,Lung diseases, interstitial ,Cross-Sectional Studies ,Fluorodeoxyglucose F18 ,Positron Emission Tomography Computed Tomography ,Humans ,Cytokines ,Inflammation Mediators ,Lung Diseases, Interstitial ,Lung ,Tomography ,Biomarkers - Abstract
Objective: To investigate the correlation of HRCT findings with pulmonary metabolic activity in the corresponding regions using 18F-FDG PET/CT and inflammatory markers in patients with systemic sclerosis (SSc)-associated interstitial lung disease (ILD). Methods: This was a cross-sectional study involving 23 adult patients with SSc-associated ILD without other connective tissue diseases. The study also involved 18F-FDG PET/CT, HRCT, determination of serum chemokine levels, clinical data, and pulmonary function testing. Results: In this cohort of patients with long-term disease (disease duration, 11.8 ± 8.7 years), a nonspecific interstitial pneumonia pattern was found in 19 (82.6%). Honeycombing areas had higher median standardized uptake values (1.95; p = 0.85). Serum levels of soluble tumor necrosis factor receptor 1, soluble tumor necrosis factor receptor 2, C-C motif chemokine ligand 2 (CCL2), and C-X-C motif chemokine ligand 10 were higher in SSc patients than in controls. Serum levels of CCL2-a marker of fibroblast activity-were correlated with pure ground-glass opacity (GGO) areas on HRCT scans (p = 0.007). 18F-FDG PET/CT showed significant metabolic activity for all HRCT patterns. The correlation between serum CCL2 levels and GGO on HRCT scans suggests a central role of fibroblasts in these areas, adding new information towards the understanding of the mechanisms surrounding cellular and molecular elements and their expression on HRCT scans in patients with SSc-associated ILD. Conclusions: 18F-FDG PET/CT appears to be unable to differentiate the intensity of metabolic activity across HRCT patterns in chronic SSc patients. The association between CCL2 and GGO might be related to fibroblast activity in these areas; however, upregulated CCL2 expression in the lung tissue of SSc patients should be investigated in order to gain a better understanding of this association. RESUMO Objetivo: Investigar a correlação entre achados de TCAR e a atividade metabólica pulmonar nas regiões correspondentes por meio de PET/TC com 18F-FDG e marcadores inflamatórios em pacientes com doença pulmonar intersticial (DPI) associada à esclerose sistêmica (ES). Métodos: Estudo transversal envolvendo 23 pacientes adultos com DPI associada à ES sem outras doenças do tecido conjuntivo. O estudo também envolveu PET/TC com 18F-FDG, TCAR, dosagem sérica de quimiocinas, dados clínicos e testes de função pulmonar. Resultados: Nessa coorte de pacientes com doença de longa duração (11,8 ± 8,7 anos), 19 (82,6%) apresentaram o padrão de pneumonia intersticial não específica. A mediana dos valores padronizados de captação foi maior nas áreas de faveolamento (1,95; p = 0,85). Os níveis séricos de soluble tumor necrosis factor receptor 1, soluble tumor necrosis factor receptor 2, C-C motif chemokine ligand 2 (CCL2) e C-X-C motif chemokine ligand 10 foram maiores nos pacientes com ES que nos controles. Os níveis séricos de CCL2 - um marcador de atividade fibroblástica - correlacionaram-se com áreas de opacidade em vidro fosco (OVF) pura na TCAR (p = 0,007). A PET/TC com 18F-FDG mostrou atividade metabólica significativa para todos os padrões de TCAR. A correlação entre níveis séricos de CCL2 e OVF na TCAR sugere que os fibroblastos desempenham um papel fundamental nessas áreas, acrescentando novas informações para a compreensão dos mecanismos que envolvem elementos celulares e moleculares e sua expressão na TCAR em pacientes com DPI associada à ES. Conclusões: A PET/TC com 18F-FDG aparentemente não consegue diferenciar a intensidade da atividade metabólica nos diferentes padrões de TCAR em pacientes com ES crônica. A associação entre CCL2 e OVF pode estar relacionada à atividade fibroblástica nessas áreas; entretanto, a expressão suprarregulada de CCL2 no tecido pulmonar de pacientes com ES deve ser investigada para que se compreenda melhor essa associação.
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- 2022
5. Assessment of regional lung ventilation by electrical impedance tomography in a patient with unilateral bronchial stenosis and a history of tuberculosis
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Liégina Silveira Marinho, Nathalia Parente de Sousa, Carlos Augusto Barbosa da Silveira Barros, Marcelo Silveira Matias, Luana Torres Monteiro, Marcelo do Amaral Beraldo, Eduardo Leite Vieira Costa, Marcelo Britto Passos Amato, and Marcelo Alcantara Holanda
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Tomografia ,Impedância elétrica ,Respiração com pressão positiva ,Ventilação pulmonar ,Obstrução das vias respiratórias ,Tuberculose pulmonar ,Diseases of the respiratory system ,RC705-779 - Abstract
Bronchial stenosis can impair regional lung ventilation by causing abnormal, asymmetric airflow limitation. Electrical impedance tomography (EIT) is an imaging technique that allows the assessment of regional lung ventilation and therefore complements the functional assessment of the lungs. We report the case of a patient with left unilateral bronchial stenosis and a history of tuberculosis, in whom regional lung ventilation was assessed by EIT. The EIT results were compared with those obtained by ventilation/perfusion radionuclide imaging. The patient was using nasal continuous positive airway pressure (CPAP) for the treatment of obstructive sleep apnea syndrome. Therefore, we studied the effects of postural changes and of the use of nasal CPAP. The EIT revealed heterogeneous distribution of regional lung ventilation, the ventilation being higher in the right lung, and this distribution was influenced by postural changes and CPAP use. The EIT assessment of regional lung ventilation produced results similar to those obtained with the radionuclide imaging technique and had the advantage of providing a dynamic evaluation without radiation exposure.
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- 2013
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6. Transdiaphragmatic intercostal hernia: imaging aspects in three cases
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Ana Carolina Sandoval Macedo, Fernando Uliana Kay, Ricardo Mingarini Terra, Jose Ribas Milanez de Campos, Andre Galante Alencar Aranha, and Marcelo Buarque de Gusmao Funari
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Hernia diafragmatica ,Radiografia ,Ultrassonografia ,Tomografia ,Imagem por ressonancia magnetica ,Diseases of the respiratory system ,RC705-779 - Abstract
Transdiaphragmatic intercostal hernia is uncommon and mostly related to blunt or penetrating trauma. We report three similar cases of cough-induced transdiaphragmatic intercostal hernia, highlighting the anatomic findings obtained with different imaging modalities (radiography, ultrasonography, CT, and magnetic resonance) in each of the cases.
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- 2013
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7. Diferencias tomográficas y funcionales entre la EPOC severa relacionada con humo de leña y con cigarrillo Tomographic and functional findings in severe COPD: comparison between the wood smoke-related and smoking-related disease
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Mauricio González-García, Dario Maldonado Gomez, Carlos A. Torres-Duque, Margarita Barrero, Claudia Jaramillo Villegas, Juan Manuel Pérez, and Humberto Varon
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Enfermedad pulmonar obstructiva crónica ,Tomografía ,Contaminación del aire ,Biomasa ,Humo ,Pruebas de función respiratoria ,Pulmonary disease ,chronic obstructive ,Tomography ,Air pollution ,Biomass ,Smoke ,Respiratory function tests ,Diseases of the respiratory system ,RC705-779 - Abstract
OBJETIVO: La exposición a humo de leña es factor de riesgo para EPOC. A diferencia de la EPOC por cigarrillo (EPOC-C), para un mismo nivel de obstrucción, en la EPOC por leña (EPOC-L), la DLCO está menos disminuida, sugiriendo menos enfisema. Por tanto, el objetivo de este estudio fue comparar los hallazgos en la TCAR en mujeres con EPOC-L y con EPOC- C. MÉTODOS: Veintidós mujeres con EPOC severa (VEF1/CVF < 70% y VEF1 < 50%) fueron divididas en dos grupos: las expuestas a leña (EPOC-L; n = 12) y las expuestas a cigarrillo (EPOC-C; n = 10). Se compararon los dos grupos con respecto al puntaje de enfisema y el compromiso de la vía aérea en la TCAR, las anormalidades funcionales en la espirometría, la DLCO, los volúmenes pulmonares y la resistencia específica de la vía aérea (sRaw). RESULTADOS: Los dos grupos tuvieron VEF1, sRaw e hiperinflación pulmonar similares. En el grupo EPOC-C, hubo mayor disminución de la DLCO y de la DLCO/VA y mayor puntaje de enfisema. En el grupo EPOC-L, no encontramos enfisema significativo en la TCAR. Los hallazgos principales fueron engrosamiento peribronquial, dilataciones bronquiales y atelectasias subsegmentarias. CONCLUSIONES: En pacientes con EPOC-L severa no hay enfisema en la TCAR. El hallazgo más importante es el compromiso severo de la vía aérea. La disminución de la DLCO y del VA con DLCO/VA normal es probablemente determinada por la obstrucción bronquial severa y la mezcla incompleta del gas inspirado en la maniobra de la respiración única de la prueba de difusión.OBJECTIVE: Wood smoke exposure is a risk factor for COPD. For a given degree of airway obstruction, the reduction in DLCO is smaller in individuals with wood smoke-related COPD than in those with smoking-related COPD, suggesting that there is less emphysema in the former. The objective of this study was to compare HRCT findings between women with wood smoke-related COPD and women with smoking-related COPD. METHODS: Twenty-two women with severe COPD (FEV1/FVC ratio < 70% and FEV1 < 50%) were divided into two groups: those with wood smoke-related COPD (n = 12) and those with smoking-related COPD (n = 10). The two groups were compared regarding emphysema scores and airway involvement (as determined by HRCT); and functional abnormalities-spirometry results, DLCO, alveolar volume (VA), the DLCO/VA ratio, lung volumes, and specific airway resistance (sRaw). Results: There were no significant differences between the two groups in terms of FEV1, sRaw, or lung hyperinflation. Decreases in DLCO and in the DLCO/VA ratio were greater in the smoking-related COPD group subjects, who also had higher emphysema scores, in comparison with the wood smoke-related COPD group subjects. In the wood smoke-related COPD group, HRCT scans howed no significant emphysema, the main findings being peribronchial thickening, bronchial dilation, and subsegmental atelectasis. CONCLUSIONS: Female patients with severe wood smoke-related COPD do not appear to develop emphysema, although they do show severe airway involvement. The reduction in DLCO and VA, with a normal DLCO/VA ratio, is probably due to severe bronchial obstruction and incomplete mixing of inspired gas during the determination of single-breath DLCO.
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- 2013
8. Tomographic pleuropulmonary manifestations in rheumatoid arthritis: a pictorial essay
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Guilherme das Posses Bridi1, Márcio Valente Yamada Sawamura2, Mark Wanderley1, Luciana Volpon Soares Souza3, Ronaldo Adib Kairalla1,4, Letícia Kawano-Dourado1,5,6, and Bruno Guedes Baldi1,7
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Lung diseases, interstitial ,Doenças pleurais ,Arthritis, rheumatoid ,Pleural diseases ,Hipertensão arterial pulmonar ,Tomografia ,Doenças pulmonares intersticiais ,Pneumopatias ,Artrite reumatoide ,Pulmonary arterial hypertension ,Tomography ,Lung diseases - Abstract
Rheumatoid arthritis (RA) is an autoimmune inflammatory and heterogeneous disease that affects several systems, especially the joints. Among the extra-articular manifestations of RA, pleuropulmonary involvement occurs frequently, with different presentations, potentially in all anatomic thoracic compartments, and may determine high morbidity and mortality. The most common pleuropulmonary manifestations in patients with RA include interstitial lung disease (ILD), pleural disease, pulmonary arterial hypertension, rheumatoid lung nodules, airway disease (bronchiectasis and bronchiolitis), and lymphadenopathy. Pulmonary hypertension and ILD are the manifestations with the greatest negative impact in prognosis. HRCT of the chest is essential in the evaluation of patients with RA with respiratory symptoms, especially those with higher risk factors for ILD, such as male gender, smoking, older age, high levels of rheumatoid factor, or positive anti-cyclic citrullinated peptide antibody results. Additionally, other etiologies that may determine tomographic pleuropulmonary manifestations in patients with RA are infections, neoplasms, and drug-induced lung disease. In these scenarios, clinical presentation is heterogeneous, varying from being asymptomatic to having progressive respiratory failure. Knowledge on the potential etiologies causing tomographic pleuropulmonary manifestations in patients with RA coupled with proper clinical reasoning is crucial to diagnose and treat these patients. RESUMO A artrite reumatoide (AR) é uma doença inflamatória autoimune e heterogênea que afeta vários sistemas, principalmente as articulações. Dentre as manifestações extra-articulares da AR, o acometimento pleuropulmonar ocorre com frequência, com diferentes apresentações, potencialmente em todos os compartimentos anatômicos do tórax e pode determinar alta morbidade e mortalidade. As manifestações pleuropulmonares mais comuns em pacientes com AR incluem doença pulmonar intersticial (DPI), doença pleural, hipertensão arterial pulmonar, nódulos pulmonares reumatoides, doença das vias aéreas (bronquiectasia e bronquiolite) e linfadenopatia. A hipertensão pulmonar e a DPI são as manifestações com maior impacto negativo no prognóstico. A TCAR de tórax é essencial na avaliação de pacientes com AR sintomáticos respiratórios, principalmente aqueles com fatores de risco maiores para DPI, como sexo masculino, tabagismo, idade mais avançada, níveis elevados de fator reumatoide ou anticorpos antipeptídeos citrulinados cíclicos positivos. Além disso, outras etiologias que podem determinar manifestações pleuropulmonares tomográficas em pacientes com AR são infecções, neoplasias e doença pulmonar induzida por drogas. Nesses cenários, a apresentação clínica é heterogênea, variando de ausência de sintomas a insuficiência respiratória progressiva. O conhecimento das possíveis etiologias causadoras de manifestações pleuropulmonares tomográficas em pacientes com AR, aliado a um raciocínio clínico adequado, é fundamental para o diagnóstico e tratamento desses pacientes.
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- 2023
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9. Escore tomográfico em pacientes com fibrose cística colonizados por Pseudomonas aeruginosa ou Staphylococcus aureus High-resolution computed tomography scores in cystic fibrosis patients colonized with Pseudomonas aeruginosa or Staphylococcus aureus
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Tania Wrobel Folescu, Elizabeth de Andrade Marques, Márcia Cristina Bastos Boechat, Pedro Daltro, Laurinda Yoko Shinzato Higa, and Renata Wrobel Folescu Cohen
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Fibrose cística ,Tomografia ,Staphylococcus aureus ,Pseudomonas aeruginosa ,Cystic fibrosis ,Tomography ,Diseases of the respiratory system ,RC705-779 - Abstract
OBJETIVO: Comparar achados de TCAR em pacientes com fibrose cística (FC) colonizados cronicamente por Pseudomonas aeruginosa ou Staphylococcus aureus, empregando o escore de Bhalla modificado, e avaliar as confiabilidades intraobservador e interobservador do método. MÉTODOS: Estudo transversal retrospectivo incluindo 41 pacientes portadores de FC, 26 dos quais colonizados cronicamente por P. aeruginosa (grupo Pa) e 15 por S. aureus (grupo Sa). Dois radiologistas analisaram independentemente em duas ocasiões, as imagens de TCAR desses pacientes e aplicaram o escore de Bhalla modificado. As confiabilidades intra e interobservador foram avaliadas segundo o coeficiente de correlação intraclasse (CCI). RESULTADOS: Houve boa concordância intraobservador e interobservador (CCI > 0,8). Os resultados dos escores do grupo Pa foram mais elevados que os do grupo Sa para o observador 1 (média de 13,50 ± 3,90 e mediana de 13,5 vs. média de 5,0 ± 5,28 e mediana de 3,0) e para o observador 2 (média de 11,96 ± 5,07 e mediana de 12,0 vs. média de 5,07 ± 5,65 e mediana de 5,0). Alterações tomográficas, como bronquiectasias, espessamento das paredes brônquicas, formação de tampões mucosos, comprometimento de gerações de divisões brônquicas e padrão de atenuação em mosaico, foram mais prevalentes no grupo colonizado por P. aeruginosa. CONCLUSÕES: O escore de Bhalla modificado se mostrou reprodutível e confiável para a avaliação de TCAR e permitiu a diferenciação entre os pacientes incluídos nos dois grupos. Escores mais altos no grupo Pa evidenciaram maior comprometimento estrutural pulmonar nesse grupo.OBJECTIVE: To compare HRCT findings in cystic fibrosis (CF) patients chronically colonized with Pseudomonas aeruginosa or Staphylococcus aureus using the modified Bhalla CT scoring system, as well as to evaluate intraobserver and interobserver reliability of the method. METHODS: This was a retrospective cross-sectional study involving 41 CF patients, 26 of whom were chronically colonized with P. aeruginosa (Pa group), and 15 of whom were colonized with S. aureus (Sa group).Two independent radiologists evaluated the HRCT scans of these patients using the modified Bhalla CT scoring system in two different moments. Intraobserver and interobserver reliability was calculated using the intraclass correlation coefficient (ICC). RESULTS: There was good intraobserver and interobserver agreement (ICC > 0.8). Scores were higher in the Pa group than in the Sa group for observer 1 (mean, 13.50 ± 3.90; median, 13.5 vs. mean, 5.00 ± 5.28; median, 3.0) and for observer 2 (mean, 11.96 ± 5.07; median, 12.0 vs. mean, 5.07 ± 5.65; median, 5.0). In addition, HRCT findings, such as bronchiectasis, bronchial wall thickening, mucus plugging, generation of bronchial divisions, and mosaic attenuation/perfusion pattern, were more prevalent in the Pa group. CONCLUSIONS: The modified Bhalla CT scoring system was reproducible and reliable for use in the evaluation of HRCT scans, allowing distinctions to be drawn between the two groups of patients under study. The higher scores in the Pa group provided evidence of greater pulmonary impairment in that group.
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- 2012
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10. Consenso brasileiro ilustrado sobre a terminologia dos descritores e padrões fundamentais da TC de tórax Illustrated Brazilian consensus of terms and fundamental patterns in chest CT scans
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C. Isabela S. Silva, Edson Marchiori, Arthur Soares Souza Júnior, and Nestor L. Müller
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Pulmão ,Consenso ,Tomografia ,Lung ,Consensus ,Tomography ,Diseases of the respiratory system ,RC705-779 - Abstract
O objetivo deste novo consenso brasileiro é atualizar e dar continuidade à padronização da terminologia dos principais descritores e padrões fundamentais da TC de tórax em língua portuguesa. Este consenso contém uma descrição sucinta dos principais termos utilizados na TC de tórax e ilustrações de exemplos clássicos. O grupo de autores é formado por médicos radiologistas membros do Colégio Brasileiro de Radiologia e Diagnóstico por Imagem, especializados em radiologia torácica, e por pneumologistas membros da Sociedade Brasileira de Pneumologia e Tisiologia, com particular interesse em diagnóstico por imagem.The objective of this new Brazilian consensus is to update and to continue the standardization of the principal terms and fundamental patterns in chest CT scans in Portuguese. There is a succinct definition of the principal terms used to describe chest CT findings, as well as illustrations of classic examples. The group of authors comprised radiologists specializing in chest radiology and holding membership in the Brazilian College of Radiology and Diagnostic Imaging, as well as pulmonologists having a special interest in diagnostic imaging and holding membership in the Brazilian Thoracic Association.
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- 2010
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11. Comprometimento do interstício pulmonar em portadores de esclerose sistêmica progressiva: estudo de uma série de 58 casos Interstitial lung disease in patients with progressive systemic sclerosis: a study of 58 cases
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Sergio Fernandes de Oliveira Jezler, Mittermayer Barreto Santiago, Thamine Lessa Andrade, César Araujo Neto, Helio Braga, and Álvaro Augusto Cruz
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Escleroderma sistêmico ,Doenças pulmonares intersticiais ,Fibrose pulmonar ,Tomografia ,computadorizada por raio-X ,Tórax ,Hipertensão pulmonar ,Scleroderma, systemic ,Lung diseases, interstitial ,Pulmonary fibrosis ,Tomography, X-ray computed ,Thorax ,Hypertension, pulmonary ,Diseases of the respiratory system ,RC705-779 - Abstract
OBJETIVO: Estimar a freqüência de doença intersticial pulmonar em um grupo de indivíduos com esclerose sistêmica progressiva e descrever suas características clínicas, funcionais e radiológicas. MÉTODOS: Após confirmação diagnóstica, 58 pacientes com esclerose sistêmica progressiva foram estudados com tomografia computadorizada de alta resolução, provas de função pulmonar, bem como pesquisa do anti-Scl 70. Foram feitas comparações entre os pacientes com e sem comprometimento intersticial pulmonar e pesquisados possíveis fatores preditivos deste acometimento através de análise multivariada. RESULTADOS: Do total, 51,7% apresentaram evidências de doença intersticial pulmonar na tomografia computadorizada de alta resolução. Dispnéia e tosse foram os sintomas mais relatados, (65,5% e 39,7%, respectivamente). Bronquiolectasias e faveolamento foram as anormalidades tomográficas mais comuns (83,3% e 80,0% respectivamente). Quando comparados com os indivíduos sem doença intersticial pulmonar, os pacientes com este acometimento apresentaram freqüência semelhante de sintomas pulmonares e extrapulmonares, porém apresentaram esclerose sistêmica progressiva de maior duração, estertores crepitantes mais freqüentes, maior positividade de anti-Scl 70, e capacidade vital forçada e pulmonar total reduzidas. Somente uma capacidade vital forçada < 80% apresentou tendência a predizer presença de doença intersticial pulmonar. CONCLUSÃO: Doença intersticial pulmonar foi freqüente neste grupo com esclerose sistêmica progressiva. Não ocorreu associação com sintomas. Houve associação entre doença intersticial pulmonar e presença de estertores crepitantes e anti-Scl 70. Contudo, somente redução da capacidade vital forçada foi preditora de doença intersticial pulmonar.OBJECTIVE: To estimate the frequency of interstitial lung disease in a group of patients with progressive systemic sclerosis, and to describe the clinical, functional and radiological characteristics of the patients studied. METHODS: Fifty-eight patients diagnosed with progressive systemic sclerosis were submitted to high-resolution computed tomography of the chest, pulmonary function tests and a blood test for anti-Scl 70 antibodies. Comparisons were drawn between patients with interstitial lung disease and those without. Logistic regression with multivariate analysis was used to identify factors predictive of interstitial lung disease. RESULTS: Of the 58 patients evaluated, 51.7% presented interstitial lung disease on high-resolution computerized tomography scans. Dyspnea and cough were the most common symptoms (seen in 65.5% and 39.7%, respectively). Bronchiolectasis and honeycombing were the most common tomographic abnormalities (observed in 83.3% and 80%, respectively). When compared to individuals without interstitial lung disease, patients with the condition had a comparable frequency of pulmonary and extrapulmonary symptoms but presented progressive systemic sclerosis of longer duration, a higher frequency of crackling rales, higher rates of anti-Scl 70 positivity, lower vital capacity and reduced total lung capacity. Only forced vital capacity < 80% was found to be a predictor of interstitial lung disease. CONCLUSION: Interstitial lung disease was common in this group of patients with progressive systemic sclerosis. No correlation with symptoms was found, although interstitial lung disease was found to correlate with crackling rales and with anti-Scl 70 positivity. Nevertheless, only reduced forced vital capacity was found to be predictive of interstitial lung disease.
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- 2005
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12. Aplicação clínica da TC e biópsia transtorácica percutânea guiada por TC em pacientes com nódulos pulmonares indeterminados.
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Vargas Cardoso, Luciana and Souza Júnior, Arthur Soares
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SOLITARY pulmonary nodule ,COMPUTED tomography ,NEEDLE biopsy ,LUNG cancer diagnosis ,MEDICAL research ,MEDICAL research methodology - Abstract
Copyright of Brazilian Journal of Pulmonology / Jornal Brasileiro de Pneumologia is the property of Sociedade Brasileira de Pneumologia e Tisiologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2014
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13. Assessment of regional lung ventilation by electrical impedance tomography in a patient with unilateral bronchial stenosis and a history of tuberculosis.
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Silveira Marinho, Liégina, Parente de Sousa, Nathalia, da Silveira Barros, Carlos Augusto Barbosa, Silveira Matias, Marcelo, Torres Monteiro, Luana, do Amaral Beraldo, Marcelo, Vieira Costa, Eduardo Leite, Passos Amato, Marcelo Britto, and Alcantara Holanda, Marcelo
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PULMONARY ventilation-perfusion scans ,ELECTRICAL impedance tomography ,BRONCHIAL arteries ,STENOSIS ,TUBERCULOSIS patients ,CONTINUOUS positive airway pressure - Abstract
Copyright of Brazilian Journal of Pulmonology / Jornal Brasileiro de Pneumologia is the property of Sociedade Brasileira de Pneumologia e Tisiologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2013
- Full Text
- View/download PDF
14. Transdiaphragmatic intercostal hernia: imaging aspects in three cases.
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Sandoval Macedo, Ana Carolina, Uliana Kay, Fernando, Mingarini Terra, Ricardo, Milanez de Campos, José Ribas, Alencar Aranha, André Galante, and de Gusmão Funari, Marcelo Buarque
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DIAPHRAGMATIC hernia ,INTERCOSTAL muscles ,RADIOGRAPHY ,ULTRASONIC imaging ,MAGNETIC resonance ,COMPUTED tomography - Abstract
Copyright of Brazilian Journal of Pulmonology / Jornal Brasileiro de Pneumologia is the property of Sociedade Brasileira de Pneumologia e Tisiologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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- 2013
- Full Text
- View/download PDF
15. Diferencias tomográficas y funcionales entre la EPOC severa relacionada con humo de leña y con cigarrillo.
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González-García, Mauricio, Gomez, Dario Maldonado, Torres-Duque, Carlos A., Barrero, Margarita, Villegas, Claudia Jaramillo, Pérez, Juan Manuel, and Varon, Humberto
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OBSTRUCTIVE lung disease diagnosis ,RESPIRATORY obstructions ,OBSTRUCTIVE lung diseases ,TOMOGRAPHY ,PULMONARY emphysema ,SPIROMETRY ,AIR pollution ,DISEASE risk factors - Abstract
Copyright of Brazilian Journal of Pulmonology / Jornal Brasileiro de Pneumologia is the property of Sociedade Brasileira de Pneumologia e Tisiologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2013
16. High-resolution computed tomography scores in cystic fibrosis patients colonized with Pseudomonas aeruginosa or Staphylococcus aureus.
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Folescu, Tania Wrobel, de Andrade Marques, Elizabeth, Boechat, Márcia Cristina Bastos, Daltro, Pedro, Higa, Laurinda Yoko Shinzato, and Cohen, Renata Wrobel Folescu
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COMPUTED tomography ,CYSTIC fibrosis ,PSEUDOMONAS aeruginosa ,STAPHYLOCOCCUS aureus ,CROSS-sectional method ,COMPARATIVE studies ,PATIENTS - Abstract
Copyright of Brazilian Journal of Pulmonology / Jornal Brasileiro de Pneumologia is the property of Sociedade Brasileira de Pneumologia e Tisiologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2012
- Full Text
- View/download PDF
17. Illustrated Brazilian consensus of terms and fundamental patterns in chest CT scans.
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Silva, C. Isabela S., Marchiori, Edson, Souza Júnior, Arthur Soares, and Müller, Nestor L.
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CHEST X rays ,TOMOGRAPHY ,DIAGNOSTIC imaging - Abstract
Copyright of Brazilian Journal of Pulmonology / Jornal Brasileiro de Pneumologia is the property of Sociedade Brasileira de Pneumologia e Tisiologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2010
18. Ultrasound-guided intrapleural positioning of pleural catheters: influence on immediate lung expansion and pleurodesis in patients with recurrent malignant pleural effusion
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Araujo, Pedro Henrique Xavier Nabuco de, Terra, Ricardo Mingarini, Santos, Thiago da Silva, Chate, Rodrigo Caruso, Paiva, Antonio Fernando Lins de, and Pêgo-Fernandes, Paulo Manuel
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Catheters ,Pleurodese ,Pleural effusion, malignant ,Derrame pleural maligno ,Tomografia ,Cateteres ,Tomography ,Pleurodesis - Abstract
Objective: To evaluate the role of intrapleural positioning of a pleural catheter in early lung expansion and pleurodesis success in patients with recurrent malignant pleural effusion (RMPE). Methods: This was a retrospective study nested into a larger prospective cohort study including patients with RMPE recruited from a tertiary university teaching hospital between June of 2009 and September of 2014. The patients underwent pleural catheter insertion followed by bedside pleurodesis. Chest CT scans were performed twice: immediately before pleurodesis (iCT) and 30 days after pleurodesis (CT30). Catheter positioning was categorized based on iCT scans as posterolateral, anterior, fissural, and subpulmonary. We used the pleural volume on iCT scans to estimate early lung expansion and the difference between the pleural volumes on CT30 and iCT scans to evaluate radiological success of pleurodesis. Clinical pleurodesis success was defined as no need for any other pleural procedure. Results: Of the 131 eligible patients from the original study, 85 were included in this nested study (64 women; mean age: 60.74 years). Catheter tip positioning was subpulmonary in 35 patients (41%), anterior in 23 (27%), posterolateral in 17 (20%), and fissural in 10 (12%). No significant differences were found among the groups regarding early lung expansion (median residual pleural cavity = 377 mL; interquartile range: 171-722 mL; p = 0.645), radiological success of pleurodesis (median volume = 33 mL; interquartile range: −225 to 257 mL; p = 0.923), and clinical success of pleurodesis (85.8%; p = 0.676). Conclusions: Our results suggest that the position of the tip of the pleural catheter influences neither early lung expansion nor bedside pleurodesis success in patients with RMPE. RESUMO Objetivo: Avaliar o papel do posicionamento intrapleural do cateter pleural na expansão pulmonar precoce e no sucesso da pleurodese em pacientes com derrame pleural maligno recorrente (DPMR). Métodos: Trata-se de um estudo retrospectivo aninhado em um estudo prospectivo de coorte maior com pacientes com DPMR recrutados em um hospital-escola universitário terciário entre junho de 2009 e setembro de 2014. Os pacientes foram submetidos a inserção de cateter pleural e, em seguida, pleurodese à beira do leito. A TC de tórax foi realizada duas vezes: imediatamente antes da pleurodese (TCi) e 30 dias após a pleurodese (TC30). Com base na TCi, a posição do cateter foi classificada em posterolateral, anterior, fissural e subpulmonar. Usamos o volume pleural na TCi para estimar a expansão pulmonar precoce e a diferença entre os volumes pleurais na TC30 e na TCi a fim de avaliar o sucesso radiológico da pleurodese. Considerou-se que a pleurodese teve êxito clínico quando não foi necessário realizar nenhum outro procedimento pleural. Resultados: Dos 131 pacientes elegíveis do estudo original, 85 foram incluídos neste estudo aninhado (64 mulheres; média de idade: 60,74 anos). A posição da ponta do cateter foi subpulmonar em 35 pacientes (41%), anterior em 23 (27%), posterolateral em 17 (20%) e fissural em 10 (12%). Não houve diferenças significativas entre os grupos quanto à expansão pulmonar precoce (mediana da cavidade pleural residual = 377 ml; intervalo interquartil: 171-722 ml; p = 0,645), sucesso radiológico da pleurodese (mediana do volume = 33 ml; intervalo interquartil: −225 a 257 ml; p = 0,923) e sucesso clínico da pleurodese (85,8%; p = 0,676). Conclusões: Nossos resultados sugerem que a posição da ponta do cateter pleural não influencia nem a expansão pulmonar precoce nem o sucesso da pleurodese à beira do leito em pacientes com DPMR.
- Published
- 2017
19. Assessment of regional lung ventilation by electrical impedance tomography in a patient with unilateral bronchial stenosis and a history of tuberculosis
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Marcelo Alcantara Holanda, Carlos Augusto Barbosa da Silveira Barros, Luana Torres Monteiro, Marcelo Silveira Matias, Marcelo B. P. Amato, Eduardo L. V. Costa, Marcelo A. Beraldo, Nathalia Parente de Sousa, and Liégina Silveira Marinho
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Pulmonary and Respiratory Medicine ,medicine.medical_specialty ,medicine.medical_treatment ,Electric impedance ,Tomografia ,Obstrução das vias respiratórias ,Case Report ,Constriction, Pathologic ,Impedância elétrica ,Internal medicine ,Multidetector Computed Tomography ,medicine ,Humans ,Continuous positive airway pressure ,Electrical impedance tomography ,Tomography ,lcsh:RC705-779 ,Positive-pressure respiration ,Sleep Apnea, Obstructive ,Tuberculose pulmonar ,Lung ,Continuous Positive Airway Pressure ,business.industry ,Relato de Caso ,Bronchial Diseases ,lcsh:Diseases of the respiratory system ,Airway obstruction ,Middle Aged ,respiratory system ,medicine.disease ,Ventilação pulmonar ,respiratory tract diseases ,Obstructive sleep apnea ,medicine.anatomical_structure ,Tuberculosis, pulmonary ,Anesthesia ,Pulmonary ventilation ,Breathing ,Cardiology ,Female ,business ,Perfusion ,Respiração com pressão positiva - Abstract
Bronchial stenosis can impair regional lung ventilation by causing abnormal, asymmetric airflow limitation. Electrical impedance tomography (EIT) is an imaging technique that allows the assessment of regional lung ventilation and therefore complements the functional assessment of the lungs. We report the case of a patient with left unilateral bronchial stenosis and a history of tuberculosis, in whom regional lung ventilation was assessed by EIT. The EIT results were compared with those obtained by ventilation/perfusion radionuclide imaging. The patient was using nasal continuous positive airway pressure (CPAP) for the treatment of obstructive sleep apnea syndrome. Therefore, we studied the effects of postural changes and of the use of nasal CPAP. The EIT revealed heterogeneous distribution of regional lung ventilation, the ventilation being higher in the right lung, and this distribution was influenced by postural changes and CPAP use. The EIT assessment of regional lung ventilation produced results similar to those obtained with the radionuclide imaging technique and had the advantage of providing a dynamic evaluation without radiation exposure.
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- 2013
20. Avaliação da ventilação pulmonar regional por tomografia de impedância elétrica em paciente com estenose brônquica unilateral pós-tuberculose
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Marinho, Liégina Silveira, Sousa, Nathalia Parente de, Barros, Carlos Augusto Barbosa da Silveira, Matias, Marcelo Silveira, Monteiro, Luana Torres, Beraldo, Marcelo do Amaral, Costa, Eduardo Leite Vieira, Amato, Marcelo Britto Passos, and Holanda, Marcelo Alcantara
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Positive-pressure respiration ,Tuberculose pulmonar ,Electric impedance ,Tomografia ,Obstrução das vias respiratórias ,respiratory system ,Ventilação pulmonar ,respiratory tract diseases ,Tuberculosis, pulmonary ,Impedância elétrica ,Pulmonary ventilation ,Airway obstruction ,Tomography ,Respiração com pressão positiva - Abstract
Bronchial stenosis can impair regional lung ventilation by causing abnormal, asymmetric airflow limitation. Electrical impedance tomography (EIT) is an imaging technique that allows the assessment of regional lung ventilation and therefore complements the functional assessment of the lungs. We report the case of a patient with left unilateral bronchial stenosis and a history of tuberculosis, in whom regional lung ventilation was assessed by EIT. The EIT results were compared with those obtained by ventilation/perfusion radionuclide imaging. The patient was using nasal continuous positive airway pressure (CPAP) for the treatment of obstructive sleep apnea syndrome. Therefore, we studied the effects of postural changes and of the use of nasal CPAP. The EIT revealed heterogeneous distribution of regional lung ventilation, the ventilation being higher in the right lung, and this distribution was influenced by postural changes and CPAP use. The EIT assessment of regional lung ventilation produced results similar to those obtained with the radionuclide imaging technique and had the advantage of providing a dynamic evaluation without radiation exposure. A estenose brônquica pode comprometer a ventilação pulmonar regional devido a limitações anormais e assimétricas ao fluxo aéreo. A tomografia de impedância elétrica (TIE) é uma técnica que possibilita a avaliação da ventilação pulmonar regional por imagem e, portanto, pode complementar a avaliação funcional dos pulmões. Relatamos o caso de uma paciente com estenose brônquica unilateral à esquerda, pós-tuberculose, em que se avaliou a ventilação pulmonar regional através da TIE, relacionando-a com a cintilografia de ventilação/perfusão. Foram estudados os efeitos das mudanças posturais e da aplicação de continuous positive airway pressure (CPAP, pressão positiva contínua nas vias aéreas) nasal, uma vez que a paciente usava esse tratamento para síndrome da apneia obstrutiva do sono. A TIE demonstrou distribuição heterogênea da ventilação pulmonar regional com maior ventilação no pulmão direito, sendo essa distribuição influenciada pelas mudanças de decúbitos e pela aplicação de CPAP. A análise da ventilação pulmonar regional pela TIE se mostrou similar aos achados da cintilografia pulmonar de ventilação com a vantagem de possibilitar uma avaliação dinâmica e sem exposição à radiação.
- Published
- 2013
21. Tomographic and functional findings in severe COPD: comparison between the wood smoke-related and smoking-related disease
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González-García, Mauricio, Gomez, Dario Maldonado, Torres-Duque, Carlos A., Barrero, Margarita, Villegas, Claudia Jaramillo, Pérez, Juan Manuel, and Varon, Humberto
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Tomografía ,Pruebas de función respiratoria ,Air pollution ,Biomasa ,respiratory system ,Respiratory function tests ,Humo ,Pulmonary disease, chronic obstructive ,respiratory tract diseases ,Smoke ,Enfermedad pulmonar obstructiva crónica ,Biomass ,Tomography ,Contaminación del aire - Abstract
OBJECTIVE: Wood smoke exposure is a risk factor for COPD. For a given degree of airway obstruction, the reduction in DLCO is smaller in individuals with wood smoke-related COPD than in those with smoking-related COPD, suggesting that there is less emphysema in the former. The objective of this study was to compare HRCT findings between women with wood smoke-related COPD and women with smoking-related COPD. METHODS: Twenty-two women with severe COPD (FEV1/FVC ratio < 70% and FEV1 < 50%) were divided into two groups: those with wood smoke-related COPD (n = 12) and those with smoking-related COPD (n = 10). The two groups were compared regarding emphysema scores and airway involvement (as determined by HRCT); and functional abnormalities-spirometry results, DLCO, alveolar volume (VA), the DLCO/VA ratio, lung volumes, and specific airway resistance (sRaw). RESULTS: There were no significant differences between the two groups in terms of FEV1, sRaw, or lung hyperinflation. Decreases in DLCO and in the DLCO/VA ratio were greater in the smoking-related COPD group subjects, who also had higher emphysema scores, in comparison with the wood smoke-related COPD group subjects. In the wood smoke-related COPD group, HRCT scans showed no significant emphysema, the main findings being peribronchial thickening, bronchial dilation, and subsegmental atelectasis. CONCLUSIONS: Female patients with severe wood smoke-related COPD do not appear to develop emphysema, although they do show severe airway involvement. The reduction in DLCO and VA, with a normal DLCO/VA ratio, is probably due to severe bronchial obstruction and incomplete mixing of inspired gas during the determination of single-breath DLCO. OBJETIVO: La exposición a humo de leña es factor de riesgo para EPOC. A diferencia de la EPOC por cigarrillo (EPOC-C), para un mismo nivel de obstrucción, en la EPOC por leña (EPOC-L), la DLCO está menos disminuida, sugiriendo menos enfisema. Por tanto, el objetivo de este estudio fue comparar los hallazgos en la TCAR en mujeres con EPOC-L y con EPOC- C. MÉTODOS: Veintidós mujeres con EPOC severa (VEF1/CVF < 70% y VEF1 < 50%) fueron divididas en dos grupos: las expuestas a leña (EPOC-L; n = 12) y las expuestas a cigarrillo (EPOC-C; n = 10). Se compararon los dos grupos con respecto al puntaje de enfisema y el compromiso de la vía aérea en la TCAR, las anormalidades funcionales en la espirometría, la DLCO, los volúmenes pulmonares y la resistencia específica de la vía aérea (sRaw). RESULTADOS: Los dos grupos tuvieron VEF1, sRaw e hiperinflación pulmonar similares. En el grupo EPOC-C, hubo mayor disminución de la DLCO y de la DLCO/VA y mayor puntaje de enfisema. En el grupo EPOC-L, no encontramos enfisema significativo en la TCAR. Los hallazgos principales fueron engrosamiento peribronquial, dilataciones bronquiales y atelectasias subsegmentarias. CONCLUSIONES: En pacientes con EPOC-L severa no hay enfisema en la TCAR. El hallazgo más importante es el compromiso severo de la vía aérea. La disminución de la DLCO y del VA con DLCO/VA normal es probablemente determinada por la obstrucción bronquial severa y la mezcla incompleta del gas inspirado en la maniobra de la respiración única de la prueba de difusión
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- 2013
22. Escore tomográfico em pacientes com fibrose cística colonizados por Pseudomonas aeruginosa ou Staphylococcus aureus
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Tania Wrobel Folescu, Pedro Daltro, Marcia Cristina Bastos Boechat, Renata Wrobel Folescu Cohen, Laurinda Yoko Shinzato Higa, and Elizabeth Andrade Marques
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Pulmonary and Respiratory Medicine ,medicine.medical_specialty ,High-resolution computed tomography ,Staphylococcus aureus ,Scoring system ,Bronchial wall ,Bronchiectasis ,medicine.diagnostic_test ,business.industry ,Intraclass correlation ,Pseudomonas aeruginosa ,Tomografia ,medicine.disease ,medicine.disease_cause ,Cystic fibrosis ,Surgery ,medicine ,Fibrose cística ,business ,Nuclear medicine ,Tomography - Abstract
OBJETIVO: Comparar achados de TCAR em pacientes com fibrose cística (FC) colonizados cronicamente por Pseudomonas aeruginosa ou Staphylococcus aureus, empregando o escore de Bhalla modificado, e avaliar as confiabilidades intraobservador e interobservador do método. MÉTODOS: Estudo transversal retrospectivo incluindo 41 pacientes portadores de FC, 26 dos quais colonizados cronicamente por P. aeruginosa (grupo Pa) e 15 por S. aureus (grupo Sa). Dois radiologistas analisaram independentemente em duas ocasiões, as imagens de TCAR desses pacientes e aplicaram o escore de Bhalla modificado. As confiabilidades intra e interobservador foram avaliadas segundo o coeficiente de correlação intraclasse (CCI). RESULTADOS: Houve boa concordância intraobservador e interobservador (CCI > 0,8). Os resultados dos escores do grupo Pa foram mais elevados que os do grupo Sa para o observador 1 (média de 13,50 ± 3,90 e mediana de 13,5 vs. média de 5,0 ± 5,28 e mediana de 3,0) e para o observador 2 (média de 11,96 ± 5,07 e mediana de 12,0 vs. média de 5,07 ± 5,65 e mediana de 5,0). Alterações tomográficas, como bronquiectasias, espessamento das paredes brônquicas, formação de tampões mucosos, comprometimento de gerações de divisões brônquicas e padrão de atenuação em mosaico, foram mais prevalentes no grupo colonizado por P. aeruginosa. CONCLUSÕES: O escore de Bhalla modificado se mostrou reprodutível e confiável para a avaliação de TCAR e permitiu a diferenciação entre os pacientes incluídos nos dois grupos. Escores mais altos no grupo Pa evidenciaram maior comprometimento estrutural pulmonar nesse grupo. OBJECTIVE: To compare HRCT findings in cystic fibrosis (CF) patients chronically colonized with Pseudomonas aeruginosa or Staphylococcus aureus using the modified Bhalla CT scoring system, as well as to evaluate intraobserver and interobserver reliability of the method. METHODS: This was a retrospective cross-sectional study involving 41 CF patients, 26 of whom were chronically colonized with P. aeruginosa (Pa group), and 15 of whom were colonized with S. aureus (Sa group).Two independent radiologists evaluated the HRCT scans of these patients using the modified Bhalla CT scoring system in two different moments. Intraobserver and interobserver reliability was calculated using the intraclass correlation coefficient (ICC). RESULTS: There was good intraobserver and interobserver agreement (ICC > 0.8). Scores were higher in the Pa group than in the Sa group for observer 1 (mean, 13.50 ± 3.90; median, 13.5 vs. mean, 5.00 ± 5.28; median, 3.0) and for observer 2 (mean, 11.96 ± 5.07; median, 12.0 vs. mean, 5.07 ± 5.65; median, 5.0). In addition, HRCT findings, such as bronchiectasis, bronchial wall thickening, mucus plugging, generation of bronchial divisions, and mosaic attenuation/perfusion pattern, were more prevalent in the Pa group. CONCLUSIONS: The modified Bhalla CT scoring system was reproducible and reliable for use in the evaluation of HRCT scans, allowing distinctions to be drawn between the two groups of patients under study. The higher scores in the Pa group provided evidence of greater pulmonary impairment in that group.
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- 2012
23. Consenso brasileiro ilustrado sobre a terminologia dos descritores e padrões fundamentais da TC de tórax
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Edson Marchiori, C. Isabela S. Silva, Nestor L. Müller, and Arthur Soares Souza Junior
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Pulmonary and Respiratory Medicine ,medicine.medical_specialty ,Consensus ,business.industry ,Pulmão ,Tomografia ,Chest ct ,Medical illustration ,Consenso ,X ray computed ,Medical imaging ,medicine ,Medical physics ,Tomography ,business ,Chest radiology ,Lung ,Pulmonologists - Abstract
O objetivo deste novo consenso brasileiro é atualizar e dar continuidade à padronização da terminologia dos principais descritores e padrões fundamentais da TC de tórax em língua portuguesa. Este consenso contém uma descrição sucinta dos principais termos utilizados na TC de tórax e ilustrações de exemplos clássicos. O grupo de autores é formado por médicos radiologistas membros do Colégio Brasileiro de Radiologia e Diagnóstico por Imagem, especializados em radiologia torácica, e por pneumologistas membros da Sociedade Brasileira de Pneumologia e Tisiologia, com particular interesse em diagnóstico por imagem. The objective of this new Brazilian consensus is to update and to continue the standardization of the principal terms and fundamental patterns in chest CT scans in Portuguese. There is a succinct definition of the principal terms used to describe chest CT findings, as well as illustrations of classic examples. The group of authors comprised radiologists specializing in chest radiology and holding membership in the Brazilian College of Radiology and Diagnostic Imaging, as well as pulmonologists having a special interest in diagnostic imaging and holding membership in the Brazilian Thoracic Association.
- Published
- 2010
24. Comprometimento do interstício pulmonar em portadores de esclerose sistêmica progressiva: estudo de uma série de 58 casos
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César de Araújo Neto, Sérgio Jezler, Thamine Lessa Andrade, Alvaro A. Cruz, Helio Braga, and Mittermayer Barreto Santiago
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Pulmonary and Respiratory Medicine ,Gynecology ,medicine.medical_specialty ,Escleroderma sistêmico/radiografia ,Tórax/radiografia ,Hipertensão pulmonar ,business.industry ,Escleroderma sistêmico/complicações ,Tomografia ,computadorizada por raio-X ,Scleroderma, systemic ,Tomography, X-ray computed ,Doenças pulmonares intersticiais ,Escleroderma sistêmico ,Thorax ,Doenças pulmonares intersticiais/etiologia ,Fibrose pulmonar ,Pulmonary fibrosis ,Lung diseases, interstitial ,Doenças pulmonares intersticiais/radiografia ,Hypertension, pulmonary ,Medicine ,business ,Tórax - Abstract
OBJETIVO: Estimar a freqüência de doença intersticial pulmonar em um grupo de indivíduos com esclerose sistêmica progressiva e descrever suas características clínicas, funcionais e radiológicas. MÉTODOS: Após confirmação diagnóstica, 58 pacientes com esclerose sistêmica progressiva foram estudados com tomografia computadorizada de alta resolução, provas de função pulmonar, bem como pesquisa do anti-Scl 70. Foram feitas comparações entre os pacientes com e sem comprometimento intersticial pulmonar e pesquisados possíveis fatores preditivos deste acometimento através de análise multivariada. RESULTADOS: Do total, 51,7% apresentaram evidências de doença intersticial pulmonar na tomografia computadorizada de alta resolução. Dispnéia e tosse foram os sintomas mais relatados, (65,5% e 39,7%, respectivamente). Bronquiolectasias e faveolamento foram as anormalidades tomográficas mais comuns (83,3% e 80,0% respectivamente). Quando comparados com os indivíduos sem doença intersticial pulmonar, os pacientes com este acometimento apresentaram freqüência semelhante de sintomas pulmonares e extrapulmonares, porém apresentaram esclerose sistêmica progressiva de maior duração, estertores crepitantes mais freqüentes, maior positividade de anti-Scl 70, e capacidade vital forçada e pulmonar total reduzidas. Somente uma capacidade vital forçada < 80% apresentou tendência a predizer presença de doença intersticial pulmonar. CONCLUSÃO: Doença intersticial pulmonar foi freqüente neste grupo com esclerose sistêmica progressiva. Não ocorreu associação com sintomas. Houve associação entre doença intersticial pulmonar e presença de estertores crepitantes e anti-Scl 70. Contudo, somente redução da capacidade vital forçada foi preditora de doença intersticial pulmonar. OBJECTIVE: To estimate the frequency of interstitial lung disease in a group of patients with progressive systemic sclerosis, and to describe the clinical, functional and radiological characteristics of the patients studied. METHODS: Fifty-eight patients diagnosed with progressive systemic sclerosis were submitted to high-resolution computed tomography of the chest, pulmonary function tests and a blood test for anti-Scl 70 antibodies. Comparisons were drawn between patients with interstitial lung disease and those without. Logistic regression with multivariate analysis was used to identify factors predictive of interstitial lung disease. RESULTS: Of the 58 patients evaluated, 51.7% presented interstitial lung disease on high-resolution computerized tomography scans. Dyspnea and cough were the most common symptoms (seen in 65.5% and 39.7%, respectively). Bronchiolectasis and honeycombing were the most common tomographic abnormalities (observed in 83.3% and 80%, respectively). When compared to individuals without interstitial lung disease, patients with the condition had a comparable frequency of pulmonary and extrapulmonary symptoms but presented progressive systemic sclerosis of longer duration, a higher frequency of crackling rales, higher rates of anti-Scl 70 positivity, lower vital capacity and reduced total lung capacity. Only forced vital capacity < 80% was found to be a predictor of interstitial lung disease. CONCLUSION: Interstitial lung disease was common in this group of patients with progressive systemic sclerosis. No correlation with symptoms was found, although interstitial lung disease was found to correlate with crackling rales and with anti-Scl 70 positivity. Nevertheless, only reduced forced vital capacity was found to be predictive of interstitial lung disease.
- Published
- 2005
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