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Rotating X-Ray Collimating Slit for Line-Scan Dual-Energy Medical Imaging

Rotating X-Ray Collimating Slit for Line-Scan Dual-Energy Medical Imaging

Authors :
J. N. Otis
Albert C. Thompson
E. B. Hughes
H. D. Zeman
J. Rolfe
Source :
IEEE Transactions on Nuclear Science. 31:548-552
Publication Year :
1984
Publisher :
Institute of Electrical and Electronics Engineers (IEEE), 1984.

Abstract

A rotating slit system has been designed and tested which can effectively translate a fan-shaped X-ray beam at the same average speed and in the same direction of travel as a patient moving continuously during a line-scan dual-energy medical imaging procedure. The slit has been shown to eliminate the artifacts due to bone in logarithmically subtracted images obtained with monochromatic X-ray beams derived from synchrotron radiation, where one beam is just above and the other just below the K-edge of iodine. Images of iodine-containing phantoms and in vivo canine images after intravenous iodine injection show vessel detail without artifacts due to bone. Corresponding images taken without the rotating slit have severe artifacts.

Details

ISSN :
00189499
Volume :
31
Database :
OpenAIRE
Journal :
IEEE Transactions on Nuclear Science
Accession number :
edsair.doi...........ab8cb761b1d366ff5e402ce7dbeb3a83
Full Text :
https://doi.org/10.1109/tns.1984.4333316