title: An algorithm for locating the aortic valve and the apex in left-ventricular angiocardiograms.
mesh_terms: D000790:Angiocardiography; D001021:Aortic Valve / Q000033:anatomy & histology / Q000000981:diagnostic imaging*; D003201:Computers; D006352:Heart Ventricles / Q000033:anatomy & histology / Q000000981:diagnostic imaging*; D006801:Humans; D008433:Mathematics