2-D AND 3-D IMAGING OF SMALL ANIMALS AND THE HUMAN RADIAL ARTERY WITH A HIGH-RESOLUTION DETECTOR FOR PET

被引：22
|
作者：
RAJESWARAN, S
BAILEY, DL
HUME, SP
TOWNSEND, DW
GEISSBUHLER, A
YOUNG, J
JONES, T
机构：
[1] ROYAL PRINCE ALFRED HOSP,DEPT NUCL MED,SYDNEY,AUSTRALIA
[2] CTI PET SYST INC,KNOXVILLE,TN
[3] UNIV GENEVA,HOP CANTONAL,DEPT NUCL MED,CH-1211 GENEVA 4,SWITZERLAND
来源：
IEEE TRANSACTIONS ON MEDICAL IMAGING | 1992年 / 11卷 / 03期
基金：
英国医学研究理事会;
关键词：
D O I：
10.1109/42.158943
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
The performance of a pair of multicrystal, high resolution, bismuth germanate (BGO) block detectors for positron emission tomography (PET) has been investigated. Utilizing the detectors at a separation of 100 mm, the spatial resolutions and count rate response of the block have been measured. These measurements indicate maximum spatial resolutions of 3.6 and 4.5 mm (FWHM) in the two axes of the block and a maximum coincidence rate of 3400 cps. The system has been used to observe the regional kinetics of positron-emitting radionuclides in the rat brain and the human radial artery. Designs for a small diameter, no-septa tomograph incorporating these detectors have been considered. Simulations performed demonstrate the possibilities of following tracer uptake within the rat brain and radial artery. 3-D tomographic data-sets of a 20 mm uniform cylinder, obtained from rotating the two blocks, indicate good uniformity in the field of view (FOV) of 25 mm.
引用
收藏
页码：386 / 391
页数：6
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