نتایج جستجو برای: coincidence imaging
تعداد نتایج: 466798 فیلتر نتایج به سال:
Background and Objective: Hoffa’s fat pad injuries are often caused by acute direct and indirect trauma and chronic recurrent micro-trauma, and its disorders are associated with other traumas and injuries that have been less paid attention to in radiological studies. Therefore, this study was performed to evaluate the injuries associated with Hoffa’s fat pad injury in knee trauma using the diag...
UNLABELLED The purpose of the study was to evaluate the performance of dual-head coincidence gamma camera imaging using FDG in association with serum marker assays in identifying lung carcinoma in patients with abnormal findings on chest radiography. METHODS A prospective evaluation of FDG imaging with coincidence detection emission tomography (CDET) using a dual-head gamma camera combined wi...
We have developed a miniature (1.2 cm2) beta-ray camera prototype to assist a surgeon in locating the margins of a resected tumor. With this technique, one directly detects betas emitted from exposed radio-labeled tissue. When imaging positron emitting radiopharmaceuticals, annihilation gamma ray interactions in the detector can mimic those of the betas. The extent of the background contaminati...
A combined y-ray probe@* imaging detector was created by modification of a beta imaging intra-operative probe. This phoswich detector consists of a thin CaF,(Eu) p*imaging disk, coupled through a light diffuser to 7 or 19 parallelepiped highZ scintillation crystals arranged hexagonally in columns. These elements are either 2 x 2 ~ 1 0 mm3 or 4 x 4 ~ 1 0 mm3 LSO, GSO or BGO crystals, and act as ...
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