CFI was reassessed during transient balloon occlusion 5 minutes and 24 hours after PCI in the first 29 patients and at 6 months in the subsequent 25 patients.

• 在球囊扩张后5分钟及术后24小时分别测量29名患者CFI值以评估术后早期侧支血流改变情况。测量25名患者术后6个月CFI值以评估术后长期侧支改变。