Angiography digital tracking method is simple and reproducible. Measuring CFV with the method is closely related to the velocity by Doppler guidewire. That may act as quantitative index of coronary flow velocity in routine coronary angiography.

• 冠脉造影数字跟踪技术测定冠脉血流速度与Doppler血流速度显著相关,两者表达单位一致,方法简便易行,重复性好,可以用作常规冠脉造影血流速度定量指标。