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. Author manuscript; available in PMC: 2016 Apr 1.
Published in final edited form as: Circ Cardiovasc Imaging. 2015 Apr;8(4):10.1161/CIRCIMAGING.114.002481 e002481. doi: 10.1161/CIRCIMAGING.114.002481

Table 5. Correlation between MPRI and CRT Measures.

MPRI ΔACH
R (p value)		 CFR
R (p value)		 ΔCBF
R (p value)		 ΔNTG
R (p value)
Whole 0.22(0.029) 0.16(0.084) 0.29(0.005) 0.24(0.016)
Subendocardial 0.20(0.046) 0.15(0.11) 0.30(0.004) 0.22(0.031)
Mid-ventricular short axis 0.24(0.016) 0.12(0.19) 0.32(0.002) 0.22(0.03)

ΔACH= % diameter change in response to acetylcholine, CFR=coronary flow reserve in response to adenosine, ΔCBF= % coronary blood flow change in response to acetylcholine, MPRI=myocardial perfusion reserve index, ΔNTG= % diameter change in response to nitroglycerin