Objective To evaluate the feasibility and the value of video density scale (VDS) for assessing myocardial microperfusion.
目的探讨视频密度阶差（VDS）评价冠脉造影时心肌微灌注的可行性及应用价值。
Objective To evaluate the feasibility and the value of video density scale (VDS) for assessing myocardial microperfusion.
目的探讨视频密度阶差（VDS）评价冠脉造影时心肌微灌注的可行性及应用价值。
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