WHOLE-BODY SINGLE-PHOTON EMISSION COMPUTED-TOMOGRAPHY USING DUAL, LARGE-FIELD-OF-VIEW SCINTILLATION CAMERAS

被引：120

作者：

JASZCZAK, RJ ^{[1
]}

CHANG, LT ^{[1
]}

STEIN, NA ^{[1
]}

MOORE, FE ^{[1
]}

机构：

[1] SEARLE DIAGNOST INC,DES PLAINES,IL 60018

来源：

PHYSICS IN MEDICINE AND BIOLOGY | 1979年 / 24卷 / 06期

关键词：

D O I：

10.1088/0031-9155/24/6/003

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

A whole-body single-photon emission computed tomography system (SPECT) consisting of two large-field-of-view scintillation cameras mounted on a rotatable gantry, a minicomputer and a display station has been designed, constructed and evaluated. In its usual mode of operation, eleven contiguous transverse sections, each 12.5 or 25 mm thick, are reconstructed from projection data acquired during a single, continuous 360 degrees rotation lasting from 2 to 22 min. A generalised filtered and weighted backprojection algorithm is used to reconstruct data obtained with conventional parallel-hole collimators in the case of body scanning, or with specially designed fan beam collimators in the case of centrally positioned organs. A simple yet effective, correction is used to compensate for the effects of gamma ray attenuation within the patient.

引用

页码：1123 / 1143

页数：21

共 38 条

[1] COMPUTERIZED TRANSVERSE AXIAL SCANNING (TOMOGRAPHY) .2. CLINICAL APPLICATION [J].