冠状动脉的小分支明显狭窄，是典型的严重的冠状动脉粥样硬化(如可出现于糖尿病和家族性高脂血症患者)的结果。这将为冠状动脉搭桥太造成困难。
This distal portion of coronary artery shows significant narrowing. Such distal involvement is typical of severe coronary atherosclerosis, such as can appear with diabetes mellitus or familial hypercholesterolemia. This would make a coronary bypass operation difficult.