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

Volume

3

fYear

1998

fDate

1998

Firstpage

1992

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium, 1998. Conference Record. 1998 IEEE

Conference_Location

Toronto, Ont.

ISSN

1082-3654

Print_ISBN

0-7803-5021-9

Type

conf

DOI

10.1109/NSSMIC.1998.773924

Filename

773924