Referenced Items are not available for this document.
The authors present a new method to compensate for the spatially variant detector response in single photon emission computed tomography (SPECT) with varying focal-length fan-beam (VFF) geometry. In this method, the deblurred projection is explicitly expressed as an integral of the collimator blurred data and the fully calibrated system kernel matrix with certain transforms. It needs a little more computation time than the conventional filtering techniques but provides much more accurate compensation. This method also represents a unified framework for detector response compensation in parallel-hole fan-beam and VFF SPECT with a circular scan orbit.
Published in:
Nuclear Science, IEEE Transactions on
(Volume:50
,
Issue:
3
)
Date of Publication: June 2003
- Page(s):
- 398 - 404
- ISSN :
- 0018-9499
- INSPEC Accession Number:
- 7682021
- Digital Object Identifier :
- 10.1109/TNS.2003.812440
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 09 July 2003
- Issue Date :
- June 2003
- Sponsored by :
- IEEE Nuclear and Plasma Sciences Society
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