CT imaging of small animals using monochromatized synchrotron x rays [electronic resource].

Published:: Washington, D.C. : United States. Dept. of Energy, 1992.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:: Pages: (4 pages) : digital, PDF file
Additional Creators:: Brookhaven National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary:

Rats and chicken embryos were imaged in vivo with a prototype Multiple Energy Computed Tomography (MECT) system using monochromatized x rays from the X17 superconducting wiggler at the National Synchrotron Light Source. The CT configuration coated of a horizontal low-divergence, fan-shaped beam, 70 mm wide and 0.5 mm high, and a subject rotating about a vertical aids. A linear-array high-purity Ge detector with 140 elements, each 0.5 mm wide and 6 mm thick, was used with a data acquisition system that provides a linear response over almost six orders of magnitude of detector current. The dual photon absorptiometry (DPA) algorithm was applied to images of the rat head acquired at 20 and 45 keV to obtain two new images, one representing the low-Z, and the other the intermediate-Z clement group. The results indicate that the contrast resolution and the quantification accuracy of the images improve stepwise; first, with the monochromatic beam and, second, the DPA method. The system is a prototype for a brain scanner.

Report Numbers:

E 1.99:bnl-48454
E 1.99: conf-921005--30
conf-921005--30
bnl-48454

Subject(s):

Radiology And Nuclear Medicine

Other Subject(s):

Note:

Published through SciTech Connect.
01/01/1992.
"bnl-48454"
" conf-921005--30"
"DE93009329"
Institute of Electrical and Electronic Engineers (IEEE) nuclear science symposium and medical imaging conference, Orlando, FL (United States), 26-31 Oct 1992.
Thompson, A.C.; Miller, M.H.; Pehl, R.; Garrett, R.F.; Spector, S.; Slatkin, D.N.; Rivers, M.; Chapman, L.D.; Dilmanian, F.A.; Spanne, P.; Luke, P.N.; Thomlinson, W.C.; Appel, R.; Rarback, H.; Oversluizen, T.; Nachaliel, E.

Funding Information:

AC02-76CH00016

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