Abstract：
:In the PET system a block detector, which is a position-sensitive photomultiplier (PMT) tube coupled to four arrays of 1.7-mm-wide BGO crystals, is utilized. Fifteen block detectors are positioned to form a 35-cm-diameter ring, with four BGO arrays coupled to each PMT. This provides four detector rings, giving the system a 7-slice imaging capability. The gantry head tilts up to +/-90 degrees , and is capable of moving up and down by 30 cm. These positioning capabilities allow flexibility and great ease of use in subject positioning. A gantry entrance size of 22 cm in diameter allows studies ranging from rats and mice to primates such as Rhesus and squirrel monkeys. The physical performance of the system has been evaluated.
journal_name
IEEE Trans Med Imagingjournal_title
IEEE transactions on medical imagingauthors
Watanabe M,Uchida H,Okada H,Shimizu K,Satoh N,Yoshikawa E,Ohmura T,Yamashita T,Tanaka Edoi
10.1109/42.192694subject
Has Abstractpub_date
1992-01-01 00:00:00pages
577-80issue
4eissn
0278-0062issn
1558-254Xjournal_volume
11pub_type
杂志文章abstract：:We aim to compute the movement of permanent stranded implant brachytherapy radioactive sources (seeds) in the prostate from the planned seed distribution to the intraoperative fluoroscopic distribution, and then to the postimplant computed tomography (CT) distribution. We present a novel approach to matching the seeds...
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journal_title：IEEE transactions on medical imaging
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