Title :
3D PET reconstruction with the ECAT EXACT HR using Fourier rebinning
Author :
Defrise, M. ; Sibomana, M. ; Michel, C. ; Newport, D.
Author_Institution :
Vrije Univ., Brussels, Belgium
Abstract :
The Fourier rebinning algorithm has been implemented to reconstruct 3D PET data from the 24 ring scanner ECAT EXACT HR. The performance of the algorithm is studied using measurements of line sources, of uniform cylinders and of an FDG brain scan. Both the resolution and the signal-to-noise ratio are as good as those obtained with the standard reprojection algorithm (3DRP) algorithm, and the noise structure is also very similar. Low level ring artefacts are observed in the difference image between the FORE and the 3DRP reconstructions
Keywords :
Fourier transforms; brain; image reconstruction; image resolution; medical signal processing; positron emission tomography; 24 ring scanner; 3D PET reconstruction; 3DRP reconstruction; ECAT EXACT HR; FDG brain scan; FORE reconstruction; Fourier rebinning algorithm; difference image; line sources; low level ring artefacts; noise structure; resolution; signal-to-noise ratio; standard reprojection algorithm; uniform cylinders; Approximation algorithms; Data compression; Image reconstruction; Positron emission tomography; Signal resolution; Signal to noise ratio;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference Record, 1995., 1995 IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-3180-X
DOI :
10.1109/NSSMIC.1995.500246
