Title :
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
fDate :
30 Oct-5 Nov 1994
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;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference, 1994., 1994 IEEE Conference Record
Conference_Location :
Norfolk, VA
Print_ISBN :
0-7803-2544-3
DOI :
10.1109/NSSMIC.1994.474774
