Title :
SPECT gated blood pool imaging-potentials and problems
Author :
Bartlett, ML ; Bacharach, SL ; Barker, C. ; Unger, E. ; Carson, J. ; Kitsiou, AN ; Smeltzer, W. ; Elliott, E. ; Pettiford, M. ; Katsiyiannis, PT ; Dilsizian, V.
Author_Institution :
Nat. Inst. of Health, Bethesda, MD, USA
Abstract :
In recent years, the use of single photon emission computed tomography (SPECT) has been proposed for gated blood pool scans in order to assess left ventricular function. By constructing a beating heart phantom, the authors confined that SPECT may be superior to planar imaging for visual assessment of wall motion defects. Further, in data from five patients with coronary artery disease, a correlation was found between quantitative measures of heart wall defects from SPECT gated blood pool images and the magnitude of PET blood flow defects. Finally, the authors investigated the effects of statistical noise, background and attenuation on ejection fraction and amplitude calculations from SPECT slices. Statistical noise and background were found to produce very small effects while attenuation had a small but measurable effect on the amplitude map and no effect on ejection fraction.<>
Keywords :
blood; cardiology; single photon emission computed tomography; PET blood flow defects; SPECT gated blood pool imaging; attenuation; background; cardiac nuclear medicine; coronary artery disease patients; ejection fraction; left ventricular function assessment; medical diagnostic imaging; planar imaging; statistical noise; wall motion defects visual assessment; Attenuation; Background noise; Blood; Coronary arteriosclerosis; Fluid flow measurement; Heart; Imaging phantoms; Noise level; Positron emission tomography; Single photon emission computed tomography;
Conference_Titel :
Computers in Cardiology 1994
Conference_Location :
Bethesda, MD, USA
Print_ISBN :
0-8186-6570-X
DOI :
10.1109/CIC.1994.470215
