Title :
Dynamic reconstruction in SPET
Author :
Karjalainen, P.A. ; Vauhkonen, M. ; Kaipio, J.P.
Author_Institution :
Dept. of Appl. Phys., Knopio Univ., Finland
fDate :
30 Oct-2 Nov 1997
Abstract :
A method for the dynamic reconstruction of time-varying activity distribution in single photon emission tomography is proposed. The method is based on the formulation of dynamical changes in the activity distribution of the object as state evolution. The reconstruction problem is then solved using a Kalman filter. The proposed method is evaluated using simulations
Keywords :
Kalman filters; image reconstruction; medical image processing; modelling; single photon emission computed tomography; SPET; dynamic model; dynamical changes formulation; medical diagnostic imaging; nuclear medicine; object activity distribution; reconstruction problem; simulations; state evolution; time-varying activity distribution; Equations; Image reconstruction; Impedance; Physics; Pixel; Recursive estimation; Single photon emission computed tomography; Sparse matrices; Time measurement; Vectors;
Conference_Titel :
Engineering in Medicine and Biology Society, 1997. Proceedings of the 19th Annual International Conference of the IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-4262-3
DOI :
10.1109/IEMBS.1997.757754
