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The primary objective of this study was to assess the effect of age and sex on the severity and localization of osteophyte formation from three-dimensional (3D) volume rendered (VR) multidetector computed tomography (MDCT) images of thoracolumbar vertebrae. 3D VR MDCT images of thoracolumbar vertebrae of 564 adult living individuals (285 female and 279 male) with ages ranging from 20 to 84 years were studied. The study population was divided into seven groups according to age, and the severity of osteophytosis scored using a scale from 0 to 4 for each vertebra. Osteophyte scores were significantly correlated with age between 40 and 70 years of age in both males and females. Of the four vertebral regions (upper, middle, and lower thoracic, lumbar) the severity was highest in the middle thoracic region between 20 and 70 years of age and in the lower thoracic region between 70 and 90 years. Lower thoracic vertebrae presented a significant sex difference. The localisation and severity of osteophytosis varies with age and shows sexual dimorphism. Our findings will be useful for forensic work in age and sex determination. [ABSTRACT FROM PUBLISHER]

Purpose: We aimed to investigate the frequency of incomplete hippocampal inversion (IHI) and the hippocampal infolding angle (HIA) in pediatric patients with no additional abnormal findings in the brain.Methods: Pediatric brain magnetic resonance imaging (MRI) examinations conducted between September 2012 and February 2015 were screened and 83 patients with epilepsy, 49 patients with febrile convulsion, and 74 control patients were included in this retrospective study. Presence of IHI was evaluated and HIA was measured on MRI.Results: IHI was found in 23 patients in the epilepsy group (27.7%), 15 patients in the febrile convulsion group (30.6%), and 14 patients in the control group (19.0%), with no significant difference between the groups (P = 0.27). Compared with the epilepsy and febrile convulsion groups, HIA was significantly larger in the control group in sections of the right cerebral pedincule, the left cerebral pedincule, and the right superior cerebellar pedincule. No correlation was found between the laterality of the epileptogenic focus in the epilepsy group and existence of IHI, nor between age and HIA values among the groups.Conclusion: Although IHI is not an uncommon abnormality in the normal pediatric population, decreased HIA is more frequently found in patients with epilepsy or febrile convulsions. [ABSTRACT FROM AUTHOR]

Objective: Our purpose was to reveal the efficiency of diffusion weighted imaging (DWI) in the diagnosis of encephalitis, and to determine the relation between the apparent diffusion coefficient (ADC) values, the onset of the clinical symptoms, and the lesion extent. Methods: Conventional magnetic resonance imaging (MRI) was performed in 17 patients with encephalitis diagnosed on the basis of laboratory, clinical and radiologic findings during 2009 and 2015. Based on the duration between the onset of the symptoms and the brain MRI findings, the patients were divided into three groups. ADC values of the encephalitis lesion, the lesions' topographic analysis score, deep gray matter involvement, patients' clinical situation and the duration of the arrival to the clinic was examined. Results: Mean ADC values were 0,988 ± 0,335x10-3 mm2/s in group I (0-2 days), 1,045 ± 0,347x10-3 mm2/s in Group-II (3-7 days), 1,451 ± 0,225x10-3 mm2/s in Group-III (8 days and over). The relation between the ADC values and the duration of the arrival, topographic analysis score, the relation between the patients' clinical situation and the deep gray matter involvement were found to be statistically significant. The deep gray matter involvement was demonstrated more clearly by FLAIR images when compared with DWI. Conclusion: Conventional MRI sequences may be insufficient in showing the encephalitis lesion. DWI must be added to the imaging modalities immediately in the cases suspected of having encephalitis. [ABSTRACT FROM AUTHOR]

Background and Aims Our aim was to investigate whether neurological alteration in patients with obstructive sleep apnoea syndrome ( OSAS) with apparently normal cerebral and cerebellar structures can be assessed by means of apparent diffusion coefficient ( ADC) measurement and to investigate the association between OSAS severity and ADC values. Methods Following the acquisition of diffusion-weighted cranial magnetic resonance imaging, ADC measurements were performed in 24 different apparently normal cerebral and cerebellar structures, including the bilateral frontal and parietal cortices, insulae, cingulate gyri, hippocampi, frontal and parieto-occipital periventricular white matter ( PWM), caudate nuclei, putamen, thalami, cerebellar hemispheres, pons and mesencephalon in 47 OSAS patients and 20 control subjects. The ADC values of the patients and the control group were compared. The association between the apnoea-hypopnoea index ( AHI) and the ADC values of the patients were investigated. Results The ADC values in the bilateral frontal PWM were lower in the patient group than those in the control subjects ( P < 0.05). The measurements in the right cingulate gyri of the OSAS patients exhibited significantly higher ADC values than those of the control group ( P = 0.002). Bilateral thalamic ADC values in severe OSAS patients were significantly higher than those in mild and moderate OSAS patients ( P < 0.05). Conclusion The ADC measurement is a simple and effective technique to evaluate neural alteration of the brain in patients with OSAS. ADC measurements can also be useful in the evaluation of the association between the AHI and the degree of neural alteration in the central nervous system. [ABSTRACT FROM AUTHOR]

Introduction HELLP syndrome (acronym comprised of hemolysis, elevated liver enzymes and low platelets) is seen in 0.1% of pregnant women. Posterior reversible encephalopathy syndrome (PRES) was reported to be 5% in patients with the HELLP syndrome. Atypical imaging appearances include contrast enhancement, hemorrhage and restricted diffusion on MRI. Aim We aimed to improve clinicians’ perception about brain lesions in the HELLP syndrome with imaging findings. Case study Here, we present a case of an 18-year-old patient with a pregnancy of 24 weeks admitted with HELLP syndrome, with CT and MRI findings of PRES and intracerebral hematoma. MRI scan of the brain showed vasogenic edema in the occipital, frontal and parietal lobes bilaterally, basal ganglia and brainstem. An emergency cesarean section was successfully performed to end the pregnancy on the same day. Repeat MRI of the brain three days after initial admission showed partial improvement of the previous abnormalities with full clinical recovery. Results and discussion The patient in this report had a variant form of PRES where the pathologic process encompassed both the posterior and anterior circulations. Conclusions An appropriate multidisciplinary approach is the key for reducing the morbidity and mortality of PRES syndrome. [ABSTRACT FROM AUTHOR]

Background: Sandhoff disease is an autosomal recessive disorder caused by b-hexosaminidase deficiency in which the ganglioside GM2 and other glycolipids accumulate intracellularly within lysosomes. This process results in progressive motor neuron manifestations, death from respiratory failure and infections in infantiles. Case Report: This report presents a 22-month-old girl with infantile type Sandhoff disease that was hospitalized for generalized seizures and psychomotor retardation. She was diagnosed with a genetically proven novel mutation and by demonstrating it's specific imaging findings. Conclusions: Determination of spesific changes in neuroimaging which are initial findings for GM2 gangliosidosis is important from the point of diagnosis and follow-up in infants suspected of having a neurodegenerative disease. [ABSTRACT FROM AUTHOR]

PURPOSE This study aims to evaluate the analysis and publication rates of abstracts presented at the Turkish National Radiology meetings in 2010-2012. METHODS Abstracts presented in the national radiology meetings of 2010, 2011, and 2012 were included in the study. The presentations were classified according to presentation type (oral or poster presentations), study type, study design, imaged organ or body systems, imaging modalities, time interval between the presentation and the publication date, and the journal in which the article was published. The conversion rate of presentations into full-text articles in peer-reviewed journals were surveyed through PubMed. The time from presentation in the meetings to publication was determined. The distribution of journals was also demonstrated. RESULTS The total number of presentations submitted in three national radiology meetings was 3,192. The publication rate was 11% for the 2010 meeting, 8.2% for the 2011 meeting, and 9.6% for the 2012 meeting. A total of 300 papers were published, with an average of 15 months (range, 0-42 months) between presentation and final publication. The first three refereed international journals with the most number of papers derived from these meetings were Diagnostic and Interventional Radiology, Clinical Imaging, and European Journal of Radiology. CONCLUSION The overall publication rate of scientific abstracts from Turkey was lower than those from overseas countries. Encouraging the authors to conduct higher-quality research would raise the publication rate as well as improve the quality and success of our scientific meetings. [ABSTRACT FROM AUTHOR]

Editorial for "MRI-Based Deep Learning Model for Distant Metastasis-Free Survival in Locoregionally Advanced Nasopharyngeal Carcinoma" Use of texture analysis based on contrast-enhanced MRI to predict treatment response to chemoradiotherapy in nasopharyngeal carcinoma. MRI-based deep-learning model for distant metastasis-free survival in locoregionally advanced nasopharyngeal carcinoma. [Extracted from the article]

Evidence Level: 5 Technical Efficacy Stage: 3 [ABSTRACT FROM AUTHOR]

Idiopathic orbital pseudotumor is a benign, noninfectious, and nonneoplastic disease with unknown cause. It is the third most common orbital disease after thyroid orbitopathy and lymphoproliferative disorder. Idiopathic orbital pseudotumor is extremely rare in pediatric age group and may cause real diagnostic problems. This paper describes a 4-year-old girl who presented with sudden ptosis in the right eye and swollen eyelid. She recovered completely with high-dose steroid therapy. We report clinical and magnetic resonance imaging findings of orbital myositis, which is a rare subtype of idiopathic orbital pseudotumor in children and needs to be differentiated from other orbital disease especially malignancy. [ABSTRACT FROM AUTHOR]