Table 4.

Comparison of regional quantitative perfusion measurements between LAD-MB and patients without LAD-MB

Variable	Patients with LAD-MB (n = 17)	Patients without LAD-MB (n = 114)	p value
LAD
Rest MBF (ml/g/min)	1.2 ± 0.3	1.0 ± 0.2	0.005
Stress MBF (ml/g/min)	2.3 ± 0.5	2.4 ± 0.7	0.73
MPR	2.0 ± 0.4	2.4 ± 0.7	0.001
LCx
Rest MBF (ml/g/min)	1.3 ± 0.3	1.1 ± 0.3	0.001
Stress MBF (ml/g/min)	2.3 ± 0.5	2.4 ± 0.7	0.61
MPR	1.8 ± 0.4	2.4 ± 0.7	< 0.001
RCA
Rest MBF (ml/g/min)	1.1 ± 0.3	1.0 ± 0.3	0.02
Stress MBF (ml/g/min)	1.8 ± 0.5	2.1 ± 0.7	0.13
MPR	1.7 ± 0.8	2.2 ± 0.7	0.006

Values are mean ± standard deviation

LAD left anterior descending artery, LCx left circumflex artery, MB myocardial bridging, MBF myocardial blood flow, MPR myocardial perfusion reserve, RCA right coronary artery