Electromagnetic blood flowmeter (EBF) and polygraph system were used for measuring the coronary blood flow (CBF), left ventricular systolic pressure (LVSP),mean aortic pressure (MAP ), heart rate respectively in anesthetized dogs.

• 实验用犬9只，开胸分离冠脉左旋支，安置电磁流量仪探头，监测冠脉血流量（CBF）。 同时用生理多异议监测左室收缩压（LVSP）、平均动脉压（MAP）、心率（HR）和心电图（ECG）。