Title :
New iterative algorithm for the SPECT diagnostics
Author :
Likhachov, A.V. ; Pickalov, V.V.
Author_Institution :
Inst. of Theor. & Appl. Mech., Acad. of Sci., Novosibirsk, Russia
Abstract :
An algorithm for three-dimensional SPECT diagnostics is developed. A step in the SPECT method is a reconstruction of spatial local emission coefficients distribution inside a patient´s body. A tissue absorption correction results in a more complicated problem compared with traditional X-ray or NMR tomography. The suggested algorithm allows the reconstruction of an unknown emission distribution when an absorption assumed to be an arbitrary function of spatial coordinates is known
Keywords :
image reconstruction; iterative methods; medical image processing; single photon emission computed tomography; 3D SPECT diagnostics; arbitrary function of spatial coordinates; attenuation correction; iterative algorithm; iterative scheme; numerical simulation; projection scheme; spatial local emission coefficients distribution; tissue absorption correction; unknown emission distribution reconstruction; Electromagnetic wave absorption; Equations; Geometry; Image reconstruction; Iterative algorithms; Nuclear magnetic resonance; Numerical simulation; Q measurement; Radiation detectors; Single photon emission computed tomography;
Conference_Titel :
Nuclear Science Symposium, 1998. Conference Record. 1998 IEEE
Conference_Location :
Toronto, Ont.
Print_ISBN :
0-7803-5021-9
DOI :
10.1109/NSSMIC.1998.773924
