Nath P H, Velasquez G, Castaneda-Zuniga W R, Zollikofer C, Formanek A, Amplatz K
Circulation. 1979 Jul;60(1):101-6. doi: 10.1161/01.cir.60.1.101.
A significant stenosis of the left main coronary artery is associated with a significant mortality and is one of the major indications for aortocoronary bypass surgery. The diagnosis of this lesion on clinical grounds is inconsistent and should be established by angiography. All routine projections during coronary arteriography cause foreshortening of the left main coronary artery. Well-collimated anteroposterior and shallow right and left anterior oblique views show the main segment best. These views also show the proximal segments of circumflex and anterior descending branches, and should be routinely used during every coronary arteriogram.
左冠状动脉主干的显著狭窄与高死亡率相关，是主动脉冠状动脉搭桥手术的主要指征之一。基于临床依据对该病变进行诊断并不一致，应通过血管造影来确诊。冠状动脉造影过程中的所有常规投照都会使左冠状动脉主干缩短。准直良好的前后位以及浅的右前斜位和左前斜位能最佳地显示主干段。这些投照还能显示回旋支和前降支的近端节段，应在每次冠状动脉造影时常规使用。
