Table 3 Positron emission tomogaphy data at enrolment and after 6 months of treatment.

	Group 1			Group 2
	Enrolment	6 months (placebo)	p Value	Enrolment	6 months (carvedilol)	p Value
Rest MBF	0.65 (0.28)	0.63 (0.26)	NS	0.56 (0.20)	0.53 (0.21)	NS
Dip‐MBF	1.08 (0.49)	1.02 (0.34)	NS	1.16 (0.7)	1.37 (0.64)	NS
CFR	1.80 (0.84)	1.77 (0.6)	NS	2.05 (0.74)	2.71 (1.37)	0.003
Rest nMBF	0.67 (0.20)	0.68 (0.21)	NS	0.59 (0.21)	0.67 (0.30)	0.041

CFR, coronary flow reserve; Dip, dipyridamole; MBF, myocardial blood flow; nMBF, regional MBF at rest normalised to rate pressure product.