人体心肌造影二维超声心动图—血流灌注与解剖学研究

本文对17例没有严重冠状动脉疾病的患者冠状动脉内注射声处理的Renografin-76,通过观察各心肌节段声学显影效果,来研究左右冠状动脉的血流灌注分布特征。结果显示本组患者中14例为右冠状动脉优势,其前间隔、左室前壁、左室前侧壁、左室后侧壁及前外侧乳头肌都由左冠状动脉供应,另外左冠状动脉还供应13/14例的中间隔,12/14例的左室后壁,1/14例的下间隔及后内侧乳头肌。其余节段由右冠状动脉供应。结果表明本组患者其心肌的血流灌注基本上同心表面的冠脉分布一致。但个别心肌节段的血流灌注形式有所变异。

Contrast Two-dimensional Echocardiography in Humans:Perfusion and Anatomic Studies

Sonicated Renografin-76 was used as the echocardiographic contrast agent during selective coronary arteriog-raphy in 17 patients without significant coronary artery disease. Perfusion characteristics were studied by visual assessment after individual injections. In patients found to be free of significant coronary artery disease by arteriography ,the left coronary system always supplied the anteroseptal, anterior ,anterolateral,posterolateral regions of the left ventricle at the mid-papillary,cross-sectional level,The anterolateral papillary muscle was perfused from the left coronary system in all cases. In patients with right dominant system ,the right coronary artery system perfused the inferior in all cases linferoseptal and posteromedial papillary muscle in 13/14 of the patients,posterior in 2/14 of the patients and mid-septum in 1/14 of the patients. These results indicate that in patients free of significant coronary artery disease,the general perfusion pattern may be anticipated from the epicardial vessel distribution,However,for some patients,individual regional pattern may vary.