Suma H, Sasaki S, Asada K, Takeuchi A, Suwa M
Department of Thoracic Surgery, Osaka Medical College, Takatsuki, Japan.
J Cardiovasc Surg (Torino). 1989 Mar-Apr;30(2):257-61.
The intraoperative evaluation of native coronary atherosclerotic lesions and the anastomotic status of saphenous vein grafts were made using two-dimensional echography. Ultrasonic imaging was performed with a linear cross-sectional ultrasonograph and a high-frequency wide-brand microtransducer. In animal experiments, the lumens of the left main trunk and other major branches of coronary arteries of mongrel dogs were clearly visualized; the stenotic portion created by external constriction of the left anterior descending artery was also recognized in this manner. In the clinical application, 30 patients who required coronary artery this manner. In the clinical application, 30 patients who required coronary artery bypass grafting were examined during surgery. Intraluminal status of the left main trunk and proximal to mid portion of the other major coronary arteries were visualized satisfactorily. Stenotic portions detected by preoperative coronary cine-angiography were recognized. It was concluded that intraoperative echo coronary arteriography provides adequate information on the target coronary artery before the incision is made and that evaluation of anastomotic status is possible.
使用二维超声心动图对天然冠状动脉粥样硬化病变和大隐静脉移植物的吻合状态进行术中评估。使用线性横截面超声仪和高频宽频微型换能器进行超声成像。在动物实验中，杂种犬冠状动脉左主干和其他主要分支的管腔清晰可见；通过这种方式也识别出了由左前降支动脉外部压迫造成的狭窄部分。在临床应用中，对30例需要冠状动脉搭桥手术的患者在手术期间进行了检查。左主干和其他主要冠状动脉近端至中部的管腔内状态可视化效果良好。识别出了术前冠状动脉血管造影检测到的狭窄部分。得出的结论是，术中超声冠状动脉造影在切开之前就能提供关于目标冠状动脉的充分信息，并且可以对吻合状态进行评估。
