Figure 1.

The total blood flow changes using coronary electromagnetic flow meter probes in normal and ischaemic myocardium before and during application of −50 mmHg. The measurements were performed at the proximal part of the right coronary artery, the left anterior descending artery and the circumflex coronary artery in six pigs. The change in total coronary artery blood flow is shown as mean values ± standard error of the mean. Statistical analysis was performed using Student’s paired t‐test, and significance was defined as *P < 0·05 and not significant (n.s.) at P > 0·05.