9 results on '"PEŞTEAN, CLAUDIU"'
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2. Sentinel lymph node scintigraphy in cutaneous melanoma using a planar calibration phantom filled with Tc-99m pertechnetate solution for body contouring
- Author
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Peştean, Claudiu, primary, Bărbuş, Elena, primary, Piciu, Andra, primary, Larg, Maria Iulia, primary, Sabo, Alexandrina, primary, Moisescu-Goia, Cristina, primary, and Piciu, Doina, primary
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- 2016
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3. QUALITY OF LIFE IN THYROID CANCER PATIENTS: A LITERATURE REVIEW.
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BÃRBUŞ, ELENA, PEŞTEAN, CLAUDIU, LARG, MARIA IULIA, and PICIU, DOINA
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THYROID cancer patients , *QUALITY of life , *RADIOISOTOPE therapy - Abstract
Introduction. Quality of life (QoL) has received increasing interest in the last years, especially in patients with cancer. This article aims to analyze a selection of medical research papers regarding the quality of life in patients with thyroid carcinoma. We overviewed the main QoL aspects derived from several studies and highlighted those less researched issues, which could represent a solid base for future clinical studies. Method. We used an integrative selection method of medical literature, choosing mostly "free access" studies, as it was considered that they could be easily viewed, searched and researched including by patients. Results. After an integrative literature review, we selected 16 relevant studies. Patients with thyroid cancer have several factors influencing their QoL, with both physical and psychological impact. The decisive factors are the quality of the surgical act, radioiodine therapy, follow-up using rh-TSH vs. hormonal withdrawal, access to behavioral help and the relationship with their physician. Conclusion. We must understand the emotional impact of the cancer diagnosis on the patient and we must collaborate in order to help the patient restore the psychosomatic balance and to recover the quality of life [ABSTRACT FROM AUTHOR]
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- 2017
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4. SENTINEL LYMPH NODE SCINTIGRAPHY IN CUTANEOUS MELANOMA USING A PLANAR CALIBRATION PHANTOM FILLED WITH TC-99M PERTECHNETATE SOLUTION FOR BODY CONTOURING.
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PEŞTEAN, CLAUDIU, BĂRBUŞ, ELENA, PICIU, ANDRA, LARG, MARIA IULIA, SABO, ALEXANDRINA, MOISESCU-GOIA, CRISTINA, and PICIU, DOINA
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SENTINEL lymph nodes , *MELANOMA diagnosis , *AQUEOUS solutions - Abstract
Background and aims. Melanoma is a disease that has an increasing incidence worldwide. Sentinel lymph node scintigraphy is a diagnostic tool that offers important information regarding the localization of the sentinel lymph nodes offering important input data to establish a pertinent and personalized therapeutic strategy. The golden standard in body contouring for sentinel lymph node scintigraphy is to use a planar flood source of Cobalt-57 (Co-57) placed behind the patients, against the gamma camera. The purpose of the study was to determine the performance of the procedure using a flood calibration planar phantom filled with aqueous solution of Technetion- 99m (Tc-99m) in comparison with the published data in literature where the gold standard was used. Methods. The study was conducted in the Department of Nuclear Medicine of Oncology Institute "Prof. Dr. Ion Chiricuţă" Cluj-Napoca in 95 patients, 31 males and 64 females. The localization of the lesions was grouped by anatomical regions as follows: 23 on lower limbs, 17 on upper limbs, 45 on thorax and 10 on abdomen. The calibration flood phantom containing aqueous solution of Tc-99m pertechnetate was used as planar source to visualize the body contour of the patients for a proper anatomic localization of detected sentinel lymph nodes. The radiopharmaceutical uptake in sentinel lymph nodes has been recorded in serial images following peritumoral injection of 1 ml solution of Tc-99m albumin nanocolloids with an activity of 1 mCi (37 MBq). The used protocol consisted in early acquired planar images within 15 minutes post-injection and delayed images at 2-3 hours and when necessary, additional images at 6-7 hours. The acquisition matrix used was 128x128 pixels for an acquisition time of 5 - 7 minutes. The skin projection of the sentinel lymph nodes was marked on the skin and surgical removal of detected sentinel lymph nodes was performed the next day using a gamma probe for detection and measurements. Results. The sentinel lymph nodes were detected in 92 cases and confirmed with the gamma probe during the surgical procedure. The localization of the lymph nodes was as follows: for the tumors localized on lower limb 23 lymph nodes were localized in inguinal region, for the tumors localized on upper limb, 17 lymph nodes were localized in axilla, for the tumors localized on the thorax, 40 lymph nodes were localized in axilla and 3 were localized in the inguinal region; for the tumors localized on the abdomen, 1 lymph node was localized in axilla and 8 lymph nodes was localized in inguinal region. Regarding the negative sentinel lymph node cases, 2 cases were registered for primarily lesions localized on thorax and 1 for a lesion localized on abdomen. According to histology, 26 cases revealed lymphatic metastatic invasion. Dose rates measured at 1m from the calibrator phantom had an average value of 3.46 μSv/h (SD 0.19) and at 1.4m, the value was 2.57 μSv/h (SD 0.22). Dose rates measured at the same distances from the Co-57 planar flood source had a average values of 32.5μSv/h (SD 0.11) respectively 24.1 μSv/h (SD 0.14). Conclusion. The planar calibration flood phantom is an effective tool for body contouring in sentinel lymph node scintigraphy and offers accurate anatomical information to efficiently localize the detected sentinel lymph nodes in melanoma, being for the first time used and mentioned as a pertinent alternative in our department. [ABSTRACT FROM AUTHOR]
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- 2016
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5. COMPARISON BETWEEN THE EMPIRICAL AND MATHEMATICAL METHODS IN THE ADMINISTRATION OF RADIOIODINE IN HYPERTHYROIDISM.
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Sabo, Alexandrina, Leontin, David, Peştean, Claudiu, Piciu, Doina, Cheptea, Marilena, and Vernic, Corina
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HYPERTHYROIDISM treatment ,IODINE isotopes ,DRUG administration ,RADIOPHARMACEUTICALS ,THYROID antagonists ,THERAPEUTICS - Abstract
The aim of the study is to demonstrate the utility of a personalized formula in order to calculate the optimal activity to be administrated with the intention to treat hyperthyroidism, in comparison with the empirical method where fixed activities are administrated to the patients with hyperthyroidism. The result showed that the individual dose addicted to the mathematical method succeed in the hyperthyroidism in 29 cases comparative to 23 cases. [ABSTRACT FROM AUTHOR]
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- 2013
6. RADIATION INDUCED THYROID CARCINOMA IN ROMANIA - EFFECTS OF THE CHERNOBYL FALLOUT, A SYSTEMATIC REVIEW OF OBSERVATIONAL STUDIES.
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GÁBORA, KATALIN, BĂRBUŞ, ELENA, PEŞTEAN, CLAUDIU, LARG, MARIA IULIA, BONCI, EDUARD ALEXANDRU, BĂDULESCU, CLAUDIU IOAN, and PICIU, ANDRA
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RADIATION , *THYROID cancer , *CHERNOBYL Nuclear Accident, Chornobyl, Ukraine, 1986 - Abstract
Introduction. The development of thyroid carcinoma is a complex process, in which both genetic and environmental factors play an important role. The rising incidence of thyroid neoplasm determines researchers to investigate factors implicated in this phenomenon. This article aims to elucidate the effects of the Chernobyl nuclear disaster on the Romanian population, studying the existing literature on radiation induced thyroid carcinoma. We analyzed the main studies published on this matter. Methods. We used the PubMed and Google Scholar databases to search for articles upon the effects of the Chernobyl nuclear disaster on the incidence of thyroid carcinoma in the Romanian population. After a careful review of the existing literature, we selected the relevant and accessible studies, the first observation being that data on thyroid related effects of the Chernobyl nuclear disaster are scarce. Results. From the selected studies, results show that there is a possible link between the Chernobyl fallout and the incidence of thyroid carcinoma. Multiple factors have been studied that play an important role in the increasing number of thyroid carcinoma cases, such as: better diagnostic techniques, incidentalomas, microcarcinomas and radiation exposure. In consequence it is difficult to measure the influence that the Chernobyl nuclear fallout has on thyroid carcinoma incidence. Conclusion. Especially in pediatric patients, there seems to be a convincing evidence of radiation related thyroid carcinoma, while in adult patients the rising incidence due exclusively to nuclear fallout is not that clear. Further studies must be done on this matter to clearly see the influence radiation has on the incidence of thyroid cancer. [ABSTRACT FROM AUTHOR]
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- 2018
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7. INVESTIGATION OF THYROID NODULES IN THE FEMALE POPULATION IN CYPRUS AND IN ROMANIA.
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PICIU, ANDRA, ANDRIANOU, XANTHI D., IRIMIE, ALEXANDRU, BĂLĂCESCU, OVIDIU, ZIRA, CHRISTINA, BĂRBUŞ, ELENA, PEŞTEAN, CLAUDIU, ARISTEIDOU, KYRIAKOS, THEOFANOUS, THALIA, AGATHOKLEOUS, MARGERITA, PICIU, DOINA, and MAKRIS, KONSTANTINOS C.
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THYROID cancer , *THYROIDITIS , *THYROTROPIN - Abstract
Background and aims. The most common thyroid disorders, with an increasing detection worldwide, are the thyroid nodules and thyroiditis, which leads to an increase of thyroid cancer incidence. In two different countries with a different exposure to risk factors for thyroid cancer, such as Cyprus and Romania, the rank of thyroid cancer among other neoplasms is very different: the 3rd most prevalent cancer among females in Cyprus and the 12th in Romania, respectively. Environmental chemicals, such as bisphenol A have a proven effect on the thyroid function. However, the relation between the exposure to the endocrine disrupt or and the development of thyroid nodules, with a potential of malignant transformation has not been previously studied. The aim of the study was to investigate the potential factors that lead to the difference of thyroid nodules incidence in the mentioned countries. Methods. A pilot case-control study has been conducted in 2014-2015 in the "Prof. Dr. Ion Chiricuta" Institute of Oncology, Cluj-Napoca, Romania and the Endocrinology Department of Archbishop Makarios III Hospital, Nicosia, Cyprus. Females older than 20 years with no medical history were recruited. Cases were women with ultrasound-confirmed thyroid nodules of size >3mm. Controls were women without thyroid nodules after ultrasound confirmation. All participants provided blood samples for measurements of the thyroid stimulating hormone (TSH), free thyroxin (FT4), anti- thyroglobulin (ATg) and anti-thyroidperoxidase (ATPO); urine samples. Demographics, anthropometries and other relevant information were provided through the administration of a questionnaire. Results. In Romania we selected 51 patients with thyroid nodules (case group) and 41 without thyroid nodules (control group) and in Cyprus 57 cases, respectively 65 controls. After the statistical analysis of the data collected we observed statistically significant differences between the populations of the two countries regarding BMI and the value of the thyroid hormones and antibodies. Conclusions. Using the data observed in this study, differences were found between Cyprus and Romania among females with thyroid nodules the BMI, and the level o f thyroid hormones had statistically significant differences. This study reports preliminaiy data, further analysis of environmental exposures to chemical factors that might have a certain influence over the thyroid in the two countries will follow. [ABSTRACT FROM AUTHOR]
- Published
- 2015
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8. Quantification of Radiation Exposure of Non-Dominant Index for the Surgeon Performing Sentinel Lymph-Node Removal Procedure.
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Peştean C, Larg MI, Bărbuş E, Bădulescu C, and Piciu D
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- Humans, Positron Emission Tomography Computed Tomography, Radiometry, Hand radiation effects, Lymphoscintigraphy methods, Occupational Exposure analysis, Radiation Exposure analysis, Radiopharmaceuticals adverse effects, Sentinel Lymph Node Biopsy methods, Technetium Tc 99m Aggregated Albumin adverse effects
- Abstract
Background: Sentinel lymph-node scintigraphy is a useful method for accurate staging of different tumors and a helpful tool in personalized therapy for oncological patients. The radiation exposure for surgical staff has been a concern since the sentinel lymph-node detection method was developed., Objective: The objective of the study was to determine and quantify the exposure to radiation of the non-dominant index for the surgeon performing sentinel lymph-node removal and to determine, if there is an irradiation risk imposed during the surgical procedure., Method: We performed a study over a period of one year, where we evaluated the exposure of surgeon's non-dominant index during 196 sentinel lymph-node removal procedures. The pharmaceutical was administrated via subcutaneous injection in four peritumoral or perilesional injection sites. The equipment we used consisted of EuroProbe3 for sentinel lymph-node detection and ring TLD dosimeter placed on the surgeon's non-dominant index., Results: The clinical distribution was: 104 melanomas, 84 breast carcinomas, 6 vulvar carcinomas and 2 penial carcinomas. The administered activity showed an average of 39.55 MBq (SD ± 1.96) Tc-99m nanoalbumin compound. The non-dominant index exposure ranged between 0.10 mSv and 0.13 mSv/month with a cumulative dose of 1.31 mSv/year, thus 6.69 µSv per procedure., Conclusion: The surgeon received a minimal dose for the non-dominant index. The values we recorded did not pose any additional concerns or restrictions, the exposure being under the limits and constraints established by regulations, close to the detectability limit of the dosimeter. The procedure is safe in terms of radiation protection, respecting the limitation and optimization principles., (Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.org.)
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- 2018
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9. "Hevesy György" Hungarian Society of Nuclear Medicine. The XVIIth Congress in Budapest, May 25-27, 2011: a technologist's perspective.
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Peştean C
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- Humans, Hungary, Medical Oncology methods, Multimodal Imaging methods, Positron-Emission Tomography methods, Tomography, X-Ray Computed methods, Nuclear Medicine methods
- Published
- 2012
- Full Text
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