RT Journal Article
SR Electronic
T1 Transmission Computed Tomography Data Acquisition with a SPECT System
JF Journal of Nuclear Medicine Technology
JO J. Nucl. Med. Technol.
FD Society of Nuclear Medicine
SP 53
OP 56
VO 15
IS 2
A1 Greer, Kim L.
A1 Harris, C. Craig
A1 Jaszczak, Ronald J.
A1 Coleman, R. Edward
A1 Hedlund, Laurence W.
A1 Floyd, Carey E.
A1 Manglos, Stephen H.
YR 1987
UL http://tech.snmjournals.org/content/15/2/53.abstract
AB Phantom and animal transmission computed tomography (TCT) scans were performed with a camera-based single photon emission computed tomography (SPECT) system to determine system linearity as a function of object density, which is important in the accurate determination of attenuation coefficients for SPECT attenuation compensation. Results from phantoms showed promise in providing a linear relationship (R = 0.997) in measuring density while maintaining good image resolution (FWHM = 10.5 mm). Animal images were essentially free of artifacts. Transmission computed tomography scans derived from a SPECT system appear to have the potential to provide data suitable for incorporation in an attenuation compensation algorithm at relatively low (calculated) radiation doses to the subjects.