Angiographic evidence of significant coronary artery obstruction must be provided and the the procedure medically necessary by a consultant cardiologist.
但必须提供血管造影以证实冠状动脉阻塞情况严重，及经心脏专家证实手术必须进行。
CMRI suggests that the occlusion of the single coronary artery may induce more severe myocardial microvascular obstruction than the stenosis of multiple coronary arteries.
单支冠状动脉闭塞的患者较多支冠状动脉狭窄的患者更容易发生心内膜下的微血管床闭塞。
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