New polygraph for selecting the arbitrary cardiac phases.
D002339:Carotid Arteries / Q000502:physiology; D004562:Electrocardiography / Q000295:instrumentation; D006321:Heart / Q000000981:diagnostic imaging* / Q000502:physiology; D006801:Humans; D011674:Pulse; D011859:Radiography; D012119:Respiration; D013679:Technology, Radiologic / Q000295:instrumentation