CIRCUMFERENTIAL PROFILES - NEW METHOD FOR COMPUTER-ANALYSIS OF TL-201 MYOCARDIAL PERFUSION IMAGES

  • 1 January 1979
    • journal article
    • research article
    • Vol. 20  (7) , 771-777
Abstract
A method for computer analysis of 201Tl scintigrams is described in which [human] left-ventricular function is measured along radii constructed from the center of the left ventricle (LV) to each point on the LV circumference. Data are displayed graphically as a circumferential profile of normalized activity against radial location. Tl defects are identified and scored by comparison of the profile curve with empirically defined normal limits. In patients with coronary artery disease, defect scores were quantitative and reproducible and generally agreed with subjective visual analysis.