Title :
B-spline FBP reconstructions for SPECT
Author :
Guedon, J.-P. ; Barker, C. ; Bizais, Y.
Author_Institution :
FDA, Rockville, MD, USA
Abstract :
The authors describe a generalization of the filtered backprojection (FBP) algorithm based on a pixel intensity distribution (PIDM) chosen in spline spaces. A set of reconstructions is obtained according to the degree of spline. The single photon emission computed tomography (SPECT) implementation is discussed in order to provide efficient algorithms and take into account the limitations induced by the gamma -camera. A study based on Jaszczack phantom reconstructions shows different ways to distribute the acquired photons onto projections and their implications in terms of algorithms.<>
Keywords :
computerised tomography; filtering and prediction theory; gamma-ray detection and measurement; image reconstruction; medical image processing; radioisotope scanning and imaging; splines (mathematics); B-spline; Jaszczack phantom reconstructions; algorithm; degree of spline; filtered backprojection; gamma -camera; medical image processing; nuclear medicine; pixel intensity distribution; reconstructions; single photon emission computed tomography; spline spaces; Biomedical imaging; Filters; Fourier transforms; Hospitals; Image reconstruction; Image sampling; Kernel; Pixel; Single photon emission computed tomography; Spline;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference, 1991., Conference Record of the 1991 IEEE
Conference_Location :
Santa Fe, NM, USA
Print_ISBN :
0-7803-0513-2
DOI :
10.1109/NSSMIC.1991.259085
