当影像增强器由头倾位向足倾位旋转时，右冠状动脉主干逐渐伸展。

When the image intensifier was rotated from cranial to caudal, the main part of RCA was observed to have a extending trend.

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左冠状动脉主干、左前降支、左回旋支和右冠状动脉显示较好且能满足影像学评价分别占93.3%，80%，60%和42.2%。

The proportion of the left main, left anterior descending, left circumflex and right coronary artery that could be evaluated were 93.3%, 80%, 60% and 42.2%, respectively.

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左冠状动脉主干钙化12例(27%)，左前降支近中段钙化有29例(64%)，左回旋支钙化例数22例(49%)，右冠状动脉近中段钙化有24例(53%)。

The calcium of coronary artery was in 12 cases (27%) of LM, left anterior descending 1, 2 (LAD1, 2) in 29 cases (64%), LCX in 22 cases (49%), right coronary artery 1, 2 (RCA1, 2) in 24 cases (53%).

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