title: Coronary artery quantitation and data management system for paired cineangiograms.
abstract: A computerized system designed to optimize the quantitation of coronary vessels on 35 mm cineangiograms is described and validated. Because the system has two cine film digitizers, it processes paired coronary arteriograms for the evaluation of serial changes in coronary arteries. A database system was specifically designed for the storage of coronary artery quantitation data which resides on a file server in a local area network and may be accessed by multiple workstations. In radiographic phantom studies of nine contrast-filled lucite cylinders of known size, the overall accuracy and precision for the measured diameters were 0.069 mm and 0.066 mm respectively. Measurements of minimum diameter and percent diameter stenosis of 21 coronary lesions selected from 17 routine cineangiograms showed high degree of intraobserver and interobserver reproducibility.
authors.affiliation: Division of Cardiovascular Medicine, Stanford University School of Medicine, California.
authors.forename: W H
authors.initials: WH
authors.lastname: Leung
authors.forename: W
authors.initials: W
authors.lastname: Sanders
authors.forename: E L
authors.initials: EL
authors.lastname: Alderman
mesh_terms: D002932:Cineangiography / Q000295:instrumentation*; D017023:Coronary Angiography / Q000295:instrumentation*; D003324:Coronary Artery Disease / Q000000981:diagnostic imaging*; D003628:Database Management Systems / Q000295:instrumentation*; D006801:Humans; D011857:Radiographic Image Interpretation, Computer-Assisted / Q000295:instrumentation*; D015203:Reproducibility of Results