CHARACTERIZATION OF A WHOLE-BODY IMAGING TECHNIQUE FOR PET

被引:46
作者
GUERRERO, TM [1 ]
HOFFMAN, EJ [1 ]
DAHLBOM, M [1 ]
CUTLER, PD [1 ]
HAWKINS, RA [1 ]
PHELPS, ME [1 ]
机构
[1] UNIV CALIF LOS ANGELES,NUCL MED LAB,LOS ANGELES,CA 90024
基金
美国国家卫生研究院;
关键词
D O I
10.1109/23.106697
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
An investigation of rapid whole-body PET scanning was performed with a view towards its eventual use in screening for metastatic lesions with 18F-fluoride ion or 18F-fluoro-deoxyglucose (FDG). Longitudinal images of the body were formed using three techniques. (1) Simple 2-D projection images were formed by resorting the sinogram data. The images were created for a set of angles covering a full 180° to facilitate viewing in a cine format. The effects of summing over a number of angles per view and filtering to reduce noise were investigated. (2) Limited-angle backprojection images were formed using a small range of angles and no reconstruction filter. The resulting volume was then sliced coronally to give planar images as a function of depth. (3) Coronal images were also obtained after reconstruction with a standard filtered backprojection technique, but with no attenuation correction. All three processes provided surprisingly good images of diagnostic quality, which were obtainable in practical scan times. Copyright © 1990 by The Institute of Electrical and Electronics Engineers, Inc.
引用
收藏
页码:676 / 680
页数:5
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