Table 3

Correlations

No. of Ptsr Coeffp Value
Stenosis severity (% DS) versus
 Change in vessel diam
 Distal vessel seg390.61<0.0001
 Proximal vessel seg390.46<0.01
 Control vessel seg210.150.811
 Change in basal CBF160.85<0.001
 Change in MLD390.89<0.001
Changes in MLD versus
 Change in vessel diam
 Distal vessel seg390.75<0.0001
 Proximal vessel seg390.50<0.002
 Control vessel seg210.020.998
 Change in basal CBF160.88<0.005
Changes in distal CBF versus change in distal vessel diam160.90<0.0001
Changes in distending pressure versus change in distal vessel diam390.56<0.001

CBF = coronary blood flow; Coeff = coefficient; diam = diameter; DS = diameter stenosis; MLD = minimal lumen diameter; Pts = patients; seg = segment.