[Intraoperative observation of coronary artery using cross-sectional echography and its application to coronary artery surgery].
D001026:Coronary Artery Bypass; D003331:Coronary Vessels / Q000473:pathology*; D006801:Humans; D007432:Intraoperative Period; D014463:Ultrasonography / Q000295:instrumentation / Q000379:methods*