Noise reduction in the dual energy window scatter correction approach in 3D PET

Author

Sossi, V. ; Barney, JS ; Ruth, TJ

Author_Institution

British Columbia Univ., Vancouver, BC, Canada

Volume

4

fYear

1994

fDate

30 Oct-5 Nov 1994

Firstpage

1512

Abstract

Noise increase is a serious drawback in the dual energy window scatter correction approach. The authors have minimized this problem by isolating the scatter component of the acquired events in the high energy window and applying optimized smoothing filters. An almost noiseless scatter correction was achieved. The impact of detector normalization on the noise was investigated and minimal effect was observed. Finally, the scatter distribution was observed to vary noticeably as a function of polar angle

Keywords

medical image processing; noise; positron emission tomography; 3D PET; acquired events scatter component; almost noiseless scatter correction; detector normalization; dual energy window scatter correction approach; medical diagnostic imaging; nuclear medicine; optimized smoothing filters; polar angle; scatter distribution; Detectors; Distributed computing; Equations; Event detection; Filters; Hospitals; Noise reduction; Positron emission tomography; Scattering; Smoothing methods;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium and Medical Imaging Conference, 1994., 1994 IEEE Conference Record

Conference_Location

Norfolk, VA

Print_ISBN

0-7803-2544-3

Type

conf

DOI

10.1109/NSSMIC.1994.474774

Filename

474774