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对于复杂的冠状动脉疾病,有时难以确定哪处病变与可逆性缺血有关而需置入支架。血流储备分数(FFR)是一种显示哪处病变引起缺血的行之有效的客观方法。尽管如此,对置入支架病变的选择常依据主观评价
For complex coronary artery disease, it is sometimes difficult to determine where lesions associated with reversible ischemia need to be placed in stents. Fractional Flow Reserve (FFR) is an objective and objective method of showing where lesions cause ischemia. Nevertheless, the choice of stent placement is often based on subjective evaluation