نتایج جستجو برای: portable gamma camera
تعداد نتایج: 211659 فیلتر نتایج به سال:
Several groups have reported the development of dual modality Gamma camera/optical imagers, which are useful tools for investigating biological processes in experimental animals. While previously reported dual modality imaging instrumentation usually employed a separated gamma camera and optical imager, we designed a detector using a position sensitive photomultiplier tube (PSPMT) that is capab...
Functional and anatomic information are often considered together when physician wants to obtain a more reliable diagnosis in medicine. The image quality and quantitative accuracy of radionuclide imaging, however, often lack anatomic cues that are needed to localize or stage the disease and typically has poorer statistical and spatial characteristics than anatomic imaging methods, such as MRI, ...
An 18-year-old womanwith superficial spreadingmelanoma in the epigastric region arising from a congenital nevus (Clark level III, Breslow thickness 3.56mm, mitotic rate 2mitoses/mm2), previously removed, was referred for a sentinel lymph node biopsy. After intradermal injection of 111MBq of 99mTc-nanocolloid (Nanocoll) around the excisional biopsy scar, lymphatic mapping was initiated. Dynamic ...
pulse-width modulation records up to 28,000 Hz from an Anger camera without spatial or tern poral distortion and with less than 1 % data loss. Recording and playback may be made at any of five tape speeds: 3%, 71,4, 15, 30, 60 ips, each accommodating a different maximal count ing rate. Since only two of four recording tracks are used, the others are available for other in put. The replayed data...
Emission computed tomography (emission CT) and conventional planar gamma-camera imaging of the liver were compared in 242 patients with suspected metastatic spread to liver. Concordant data were obtained in 171 patients (71%). Single large lesions, multiple small lesions, and diffuse disease were accurately defined with this new radionuclide tomographic technique. The smallest lesion detected b...
Radium-223 ((223)Ra) dichloride is an approved intravenous radiotherapy for patients with osseous metastases from castration-resistant prostate cancer (CRPC). In addition to the therapeutic alpha radiation, there is additional (223)Ra radiation generated which produces photons that can be imaged with conventional gamma cameras. No studies have evaluated real-time and quality imaging during intr...
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