A comparison of attenuation correction methods for quantitative single photon emission computed tomography

Content Provider	Scilit
Author	Webb, S. Flower, M. A. Ott, R. J. Lech, M. O.
Copyright Year	1983
Description	Journal: Physics in Medicine & Biology Transverse section tomograms of experimental phantoms and patients have been obtained using a GE 400T camera and a filtered back-projection reconstruction technique. These tomograms have been compared with the corresponding sections reconstructed from the same tomographic projection data, but using iterative algorithms with correction for photon attenuation. The comparison assesses the importance of including a correction for attenuation as well as demonstrating how closely a simple geometric attenuation correction, applied to the filtered back-projection reconstruction method, approximates to a more accurate correction incorporated in the computation of line integrals during iterative reconstruction. A comparison is also made between the behaviour of reconstruction algorithms with simulated projection data and real data in terms of convergence properties, and some shortcomings arising from simulation are noted.
Related Links	http://iopscience.iop.org/article/10.1088/0031-9155/28/9/004/pdf
Ending Page	1056
Page Count	12
Starting Page	1045
ISSN	00319155
e-ISSN	13616560
DOI	10.1088/0031-9155/28/9/004
Journal	Physics in Medicine & Biology
Issue Number	9
Volume Number	28
Language	English
Publisher	IOP Publishing
Publisher Date	1983-09-01
Access Restriction	Open
Subject Keyword	Journal: Physics in Medicine & Biology Attenuation Correction Reconstruction Algorithms Computed Tomography Methods for Quantitative Projection Reconstruction
Content Type	Text
Resource Type	Article
Subject	Radiology, Nuclear Medicine and Imaging Radiological and Ultrasound Technology