Rotating X-ray collimating slit for line-scan dual-energy medical imaging

Conference · Tue Jan 31 23:00:00 EST 1984 · IEEE Trans. Nucl. Sci.; (United States)

OSTI ID:6659784

Zeman, H D; Otis, J N; Rolfe, J; Thompson, A C

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.

• Research Organization: Hanson Lab. of Physics, and Dept. of Physics, Stanford Univ.
• OSTI ID: 6659784
• Report Number(s): CONF-831015-
• Journal Information: IEEE Trans. Nucl. Sci.; (United States), Journal Name: IEEE Trans. Nucl. Sci.; (United States) Vol. 31:1; ISSN IETNA
• Country of Publication: United States
• Language: English

Related Subjects

550602* -- Medicine-- External Radiation in Diagnostics-- (1980-)
62 RADIOLOGY AND NUCLEAR MEDICINE
ANIMAL TISSUES
ANIMALS
BEAM OPTICS
BIOMEDICAL RADIOGRAPHY
BLOOD VESSELS
BODY
BONE TISSUES
BREMSSTRAHLUNG
CARDIOVASCULAR SYSTEM
COLLIMATORS
CONNECTIVE TISSUE
COUNTING TECHNIQUES
DESIGN
DIAGNOSTIC TECHNIQUES
DOGS
ELECTROMAGNETIC RADIATION
IMAGE PROCESSING
IODINE ISOTOPES
IONIZING RADIATIONS
ISOTOPES
MAMMALS
MEDICINE
MOCKUP
MONOCHROMATIC RADIATION
MOTION
NUCLEAR MEDICINE
ORGANS
PERFORMANCE TESTING
PHANTOMS
PROCESSING
RADIATIONS
RADIOISOTOPE SCANNING
RADIOLOGY
ROTATION
STRUCTURAL MODELS
SYNCHROTRON RADIATION
TESTING
TISSUES
VERTEBRATES
X RADIATION