Methods Coronary artery opening and interior diameter were measured. The coronary diameters were traced and the blood flow characteristics were observed using 2 D echocardiography, pulsed wave Dopper and color Dopper flow imaging.

• 方法 利用二维超声 ( 2DE)、脉冲多普勒 (PW )、彩色多普勒血流显像 (CDFI)检测受累冠状动脉开口、内径、追踪其走行及扩张处血流特点。