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2008

System Calibration and Statistical Image Reconstruction for Ultra-High Resolution Stationary Pinhole SPECT

8 years 3 months ago
System Calibration and Statistical Image Reconstruction for Ultra-High Resolution Stationary Pinhole SPECT
For multi-pinhole SPECT, iterative reconstruction algorithms are preferred over analytical methods, because of the often complex multi-pinhole geometries and the ability of iterative algorithms to compensate for effects like spatially variant sensitivity and resolution. Ideally such compensation methods are based on accurate knowledge of the position-dependent point spread functions (PSFs) specifying the response of the detectors to a point source at every position in the instrument. This paper describes a method for model-based generation of complete PSF lookup tables from a limited number of point source measurements for stationary SPECT systems and its application to a sub-mm resolution stationary small-animal SPECT system containing 75 109
Frans van der Have, Brendan Vastenhouw, Marc Rentm
Added 15 Dec 2010
Updated 15 Dec 2010
Type Journal
Year 2008
Where TMI
Authors Frans van der Have, Brendan Vastenhouw, Marc Rentmeester, Freek J. Beekman
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