title: The assessment of an edge detection algorithm in determining left ventricular ejection fraction using radio-nuclide multiple gated acquisition and contrast ventriculography.
abstract: The application of an edge detection algorithm (EDA) in defining the boundary of the left ventricle (LV) in multiple gated (MG) cardiac studies has been assessed by comparison of the left ventricular ejection fraction (LVEF) derived from X-ray contrast ventriculography (CV) in a series of patients. The results demonstrate good correlation between methods irrespective of the projection and LV status when an EDA is used, such that the correlation in anterior and left anterior oblique (45 degrees) views is 0.91 and 0.86 respectively.
mesh_terms: D000328:Adult; D000368:Aged; D002302:Cardiac Output; D003287:Contrast Media / Q000008:administration & dosage; D005260:Female; D006321:Heart / Q000000981:diagnostic imaging*; D006331:Heart Diseases / Q000000981:diagnostic imaging / Q000503:physiopathology; D006352:Heart Ventricles / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D008433:Mathematics; D008875:Middle Aged; D011859:Radiography; D011877:Radionuclide Imaging; D013670:Sodium Pertechnetate Tc 99m; D013318:Stroke Volume; D013667:Technetium
chemical_list: D003287:Contrast Media; D013667:Technetium; D013670:Sodium Pertechnetate Tc 99m