Volume 27, Issue 2
مرور بر اساس
ارسال های اخیر
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Unusual false-positive results of whole-body 131I scintigraphy: Four different case scenarios
(Research Center for Nuclear Medicine (Tehran University of Medical Sciences), 2019-07-01)Post-treatment or diagnostic whole-body radioiodine scintigraphy is widely used to assess the residual, recurrence, or metastases of differentiated thyroid carcinoma because of the high sensitivity and accuracy that this ...
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The effect of pomegranate juice, lemon juice and secanjabin in reducing infra-cardiac activity of 99mTc-MIBI during myocardial perfusion imaging in comparison with fatty food
(Research Center for Nuclear Medicine (Tehran University of Medical Sciences), 2019-07-01)Introduction: Eating fatty food is a common technique for decreasing extra cardiac activity, but sometimes patients refuse to eat fatty foods due to various reasons during myocardial perfusion imaging. The aim of this study ...
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Cellular dosimetry of beta emitting radionuclides-antibody conjugates for radioimmunotherapy
(Research Center for Nuclear Medicine (Tehran University of Medical Sciences), 2019-07-01)Introduction: The choice of optimal radionuclides for radioimmunotherapy depends on several factors, especially the radionuclide and antibody. The dosimetric characteristics of a non-internalizing and an internalizing ...
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Absent radiotracer uptake in thyroid gland in parathyroid scintigraphy with 99mTc-MIBI: A case report
(Research Center for Nuclear Medicine (Tehran University of Medical Sciences), 2019-07-01)Localization of 99mTc- hexakis-2-methoxyisobutylisonitrile (99mTc-MIBI) by parathyroid adenomas is well known, and this warrants MIBI scan to evaluate suspected parathyroid adenoma in primary hyperparathyroidism. Typically, ...
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Synthesis, in vitro evaluation of cytotoxicity and radiosensitizer activity of novel 2-(2, 4-dinitrobenzylidene) cyclohexanone derivatives against the radioresistant HT29 cell line under aerobic condition
(Research Center for Nuclear Medicine (Tehran University of Medical Sciences), 2019-07-01)Introduction: Bifunctional radiosensitizer agents in which nitroaromatic moieties are attached through a linker to antineoplastic moieties have demonstrated higher cytotoxicity and radiosensitizer effects than the corresponding ...
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False positive 18F-FDG PET/CT due to active varicella zoster infection in a Hodgkin’s lymphoma patient
(Research Center for Nuclear Medicine (Tehran University of Medical Sciences), 2019-07-01)We report a case of Hodgkin lymphoma (classic type) referred for response assessment after two cycles of chemotherapy with ABVD regiment. The F-18 fluorodeoxyglucose positron emission tomography (F-18 FDG PET/CT) showed ...
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Negative 99mTc-MIBI uptake in a parathyroid carcinoma: A case report
(Research Center for Nuclear Medicine (Tehran University of Medical Sciences), 2019-07-01)A 34 year old woman with malaise, polyuria and nocturia as well as nausea and vomiting referred to perform a thyroid scan due to right thyroid lobe mass. The scan showed a cold nodule in the right thyroid lobe. Serum calcium ...
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A novel approach to automatic position calibration for pixelated crystals in gamma imaging
(Research Center for Nuclear Medicine (Tehran University of Medical Sciences), 2019-07-01)Introduction: The position estimation in gamma detection system will have constant misplacements which can be corrected in the calibration procedure. In the pixelated crystal uniformly irradiation of detector will produce ...
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Can three-phase skeletal scintigraphy predict the outcome and determine the timing of removal of bone distracters in avascular necrosis of femur using a novel corticostomy technique?
(Research Center for Nuclear Medicine (Tehran University of Medical Sciences), 2019-07-01)Introduction: 99mTc-Methylene diphosphonate (99mTc-MDP) three phase bone scintigraphy (TPS) is beneficial to evaluate the success of femoral head revascularization using novel distraction osteogenesis techniques with bone ...
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Comparative assessment of the accuracy of maximum likelihood and correlated signal enhancement algorithm positioning methods in gamma camera with large square photomultiplier tubes
(Research Center for Nuclear Medicine (Tehran University of Medical Sciences), 2019-07-01)Introduction: The gamma cameras, based on scintillation crystal followed by an array of photomultiplier tubes (PMTs), play a crucial role in nuclear medicine. The use of square PMTs provides the minimum dead zones in the ...
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Implementation of quadratic dose protocol for 18F-FDG whole-body PET imaging using a BGO-based PET/CT scanner, GE Discovery ST
(Research Center for Nuclear Medicine (Tehran University of Medical Sciences), 2019-07-01)Introduction: The ability of quadratic dose protocol to maintain a good quality image for an overweight and obese patient is well reported. However, a practical approach to the implementation of this protocol in whole-body ...
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The influence of misregistration between CT and SPECT images on the accuracy of CT-based attenuation correction of cardiac SPECT/CT imaging: Phantom and clinical studies
(Research Center for Nuclear Medicine (Tehran University of Medical Sciences), 2019-07-01)Introduction: Integration of single photon emission computed tomography (SPECT) and computed tomography (CT) scanners into SPECT/CT hybrid systems permit detection of coronary artery disease in myocardial perfusion imaging ...
