Performance of the rotating slant-hole collimator for the detection of myocardial perfusion abnormalities

Journal Article · Fri Jan 01 04:00:00 EST 1982 · J. Nucl. Med.; (United States)

OSTI ID:5638375

Ratib, O; Henze, E; Hoffman, E; Phelps, M E; Schelbert, H R

To determine the usefulness of the rotating slant-hole (RSH) collimator, a new imaging device for tomographic myocardial imaging, we evaluated its performance in phantom studies. Perfusion defects of variable size, location, and tracer concentration were simulated and imaging was performed with a conventional parallel-hole collimator and the RSH collimator. Planar and depth resolutions assessed with a line source compared favorably with those reported previously for the seven-pinhole collimator. The results also showed RSH tomography to be more sensitive than planar imaging in detecting simulated myocardial defects but indicated some limitations, especially the occurrence of artifactual defects that may reduce the specificity of the imaging device for the detection of perfusion abnormalities.

• Research Organization: UCLA School of Medicine, Los Angeles, CA
• OSTI ID: 5638375
• Journal Information: J. Nucl. Med.; (United States), Journal Name: J. Nucl. Med.; (United States) Vol. 23:1; ISSN JNMEA
• Country of Publication: United States
• Language: English

Related Subjects

550602* -- Medicine-- External Radiation in Diagnostics-- (1980-)
62 RADIOLOGY AND NUCLEAR MEDICINE
BEAM OPTICS
BODY
CARDIOVASCULAR DISEASES
CARDIOVASCULAR SYSTEM
COLLIMATORS
COMPUTERIZED TOMOGRAPHY
DIAGNOSIS
DIAGNOSTIC TECHNIQUES
DISEASES
HEART
MOCKUP
MUSCLES
MYOCARDIUM
ORGANS
PERFORMANCE TESTING
PERFUSED ORGANS
PHANTOMS
STRUCTURAL MODELS
TESTING
TOMOGRAPHY