EFFECT OF INCREASED AXIAL-FIELD OF VIEW ON THE PERFORMANCE OF A VOLUME PET SCANNER

被引：35

作者：

KARP, JS ^{[1
]}

KINAHAN, PE ^{[1
]}

MUEHLLEHNER, G ^{[1
]}

COUNTRYMAN, P ^{[1
]}

机构：

[1] UGM MED SYST INC,PHILADELPHIA,PA 19104

来源：

IEEE TRANSACTIONS ON MEDICAL IMAGING | 1993年 / 12卷 / 02期

关键词：

D O I：

10.1109/42.232259

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

The performance of the PENN-PET 240H scanner from UGM Medical Systems is tested and compared to the prototype PENN-PET scanner built at the University of Pennsylvania. The UGM PENN-PET scanner consists of six continuous position-sensitive NaI(Tl) detectors, which results in a 50 cm transverse field-of-view and a 12.8 cm axial field-of-view. The fine spatial sampling in the axial direction allows the data to be sorted into as many as 64 transverse planes, each 2 mm thick. A large axial acceptance angle, without interplane septa, results in a high-sensitivity and low-randoms fraction, with a low-scatter fraction due to the use of a narrow photopeak energy window. This paper emphasizes those performance measurements that illustrate the special characteristics of a volume imaging scanner and how they change as the axial length is increased.

引用

页码：299 / 306

页数：8

共 13 条

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