NDLI: Image reconstruction for a novel SPECT system with rotating slant-hole collimators

Content Provider	IEEE Xplore Digital Library
Author	Clack, R. Christian, P.E. Defrise, M. Welch, A.E.
Copyright Year	1994
Description	Author affiliation: Dept. of Radiol., Utah Univ., Salt Lake City, UT, USA (Clack, R.; Christian, P.E.)
Abstract	We are investigating the use of rotating slant-hole (RSH) collimators on conventional SPECT machines. The main interest in this configuration is the potential for increased photon sensitivity over standard parallel-hole collimator systems. Projection data from an RSH-SPECT system presents a novel but tractable image reconstruction problem. Special features of RSH-SPECT, such as the dimensions of the field-of-view and the rotation requirements of the detector head, are discussed, and image reconstruction is presented in some detail. Data from a Jaszczak cardiac phantom were acquired on an experimental RSH system and reconstructed. Limited-angle artifacts were clearly seen on images reconstructed from a single set of data (classical RSH). The reconstructions from multi-view datasets verify the full tomographic capability of the RSH-SPECT system.
Starting Page	1948
Ending Page	1952
File Size	522133
Page Count	5
File Format	PDF
ISBN	0780325443
DOI	10.1109/NSSMIC.1994.474685
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1994-10-30
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Image reconstruction Single photon emission computed tomography Detectors Optical collimators Image converters Cameras Magnetic heads Biomedical imaging Laboratories Radiology
Content Type	Text
Resource Type	Article

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