نتایج جستجو برای: positron emission tomography

تعداد نتایج: 328025  

Journal: :asia oceania journal of nuclear medicine and biology 0
yangchun chen department of nuclear medicine, quanzhou first hospital, fujian medical university, quanzhou, china xiangrong chen department of radiology, quanzhou first hospital, fujian medical university, quanzhou, china ji-an liu guangdong provincial key laboratory of micro-nano manufacturing technology and equipment, guangdong university of technology, guangzhou, china fanyong li the pet-ct center, first affiliated hospital of guangzhou medical university, guangzhou, china

objective(s): considering the fact that the standardized uptake value (suv) of a normal lung tissue is expressed as x±sd, x+3×sd could be considered as the threshold value to outline the internal tumor volume (itv) of a lung neoplasm. methods: three hollow models were filled with 55.0 kbq/ml fluorine18- fluorodeoxyglucose (18f-fdg) to represent tumors. the models were fixed to a barrel filled w...

Journal: :nephro-urology monthly 0
prathamesh joshi department of nuclear medicine and pet-ct,jksookhosy}umlaondrwwwesskhcgo~vwe, worli, india +98-912266573244, [email protected]; department of nuclear medicine and pet-ct,jksookhosy}umlaondrwwwesskhcgo~vwe, worli, india +98-912266573244, [email protected] vikram lele department of nuclear medicine and pet-ct,jksookhosy}umlaondrwwwesskhcgo~vwe, worli, india +98-912266573244, [email protected]

we report a case of prostatic adenocarcinoma, initially presenting with generalized lymphadenopathy, and mimicking lymphoma on flurodeoxyglucose positron emission tomography/computed tomography (fdg pet/ct). our case suggests that in elderly men presenting with generalized lymphadenopathy, the diagnosis of metastatic prostatic carcinoma should not be overlooked even in the absence of typical ur...

2012
Seok Hwa Youn Kyung Won Seo Sang Ho Lee Yeon Myung Shin Ki Young Yoon

PURPOSE The use of 18F-2-deoxy-2-fluoro-D-glucose positron emission tomography-computed tomography as a routine preoperative modality is increasing for gastric cancer despite controversy with its usefulness in preoperative staging. In this study we aimed to determine the usefulness of preoperative positron emission tomography-computed tomography scans for staging of gastric cancer. MATERIALS ...

2009
Anna L Bartels Clark J Zeebregts Roelien H Enting Riemer HJA Slart

INTRODUCTION Fluorodeoxyglucose positron emission tomography scanning has an established role in the diagnostic work-up of many malignant diseases and also in the evaluation of cancer treatment response. Fluorodeoxyglucose positron emission tomography may, however be non-specific as infectious processes are depicted as well. CASE PRESENTATION We present a patient with longstanding leg pain an...

Journal: :Haematologica 2013
Daan Dierickx Thomas Tousseyn Annelies Requilé Raf Verscuren Xavier Sagaert Julie Morscio Iwona Wlodarska An Herreman Dirk Kuypers Johan Van Cleemput Frederik Nevens Lieven Dupont Anne Uyttebroeck Jacques Pirenne Christiane De Wolf-Peeters Gregor Verhoef Lieselot Brepoels Olivier Gheysens

We investigated sensitivity, specificity, positive predictive value, negative predictive value and accuracy of 18F-fluorodeoxyglucose-positron emission tomography in 170 cases with suspected or biopsy-proven posttransplant lymphoproliferative disorder. All solid organ and hematopoietic stem cell transplant recipients who underwent an 18F-fluorodeoxyglucose-positron emission tomography scan betw...

Prostate cancer remains a major public health problem worldwide. Imaging plays an important role in the assessment of disease at all its clinical phases, including staging, restaging after definitive therapy, evaluation of therapy response, and prognostication. Positron emission tomography with a number of biologically targeted radiotracers has been demonstrated to have potential diagnostic and...

Ameneh Sazgarnia, Elham Dolat

As a nuclear approach, Positron Emission Tomography (PET) is a functional imaging technique which is based on the detection of gamma ray pairs emitted by a positron-emitting radionuclide. There are certain limitations to this technique such as normal tissue uptake. Therefore, it has been recommended that patients prepare before scanning. Fasting for a short while before PET imaging is an exampl...

We report a three-phase bone scintigraphy for the diagnosis of a peripheral bone lesion caused by systemic sarcoidosis. A 32-year-old man with suspected osteomyelitis of the right forefinger underwent three-phase bone scintigraphy with Tc-99m hydroxymethylene diphosphonate (HMDP) and single-photon emission computed tomography/computed tomography (SPECT/CT). The lesion was rich in blood flow acc...

Journal: :Medicinski pregled 2015
Katarina Nikoletić Jasna Mihailović Emil Matovina Radmila Žeravica Dolores Srbovan

INTRODUCTION The study was aimed at assessing the reliability of 18F-fluorodeoxyglucose positron emission tomography-computed tomography scan in evaluation of testicular carcinoma patients. MATERIAL AND METHODS The study sample consisted of 26 scans performed in 23 patients with testicular carcinoma. According to the pathohistological finding, 14 patients had seminomas, 7 had nonseminomas and...

Introduction:MAMMI is a dedicated PET based on high resolution detectors placed close to the breast. In this study, we presented a GATE model for the simulation of MAMMI scanner and model its performance of the MAMMI based on an adaptation of the NU 4-2008 NEMA standard.  Methods:A detailed of geometry MAMMI system that uses scintillation crystals coupled...

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