Table 1 Effect of nitroglycerin on performance of MRCA
Coronary vessel | Diameter before slNitro (mm, mean) | Diameter after slNitro (mm, mean) | P value | Image quality before nitro (mean) | Image quality after nitro (mean) | P value |
|---|---|---|---|---|---|---|
RCA prox | 3.8 | 4.2 | 0.001 | 2.7 | 2.9 | 0.19 |
RCA med | 3.2 | 3.8 | 0.008 | 2.1 | 2.5 | 0.048 |
RCA dist | 3.1 | 3.5 | 0.002 | 2.1 | 2.5 | 0.02 |
Left main | 4.0 | 4.6 | <0.001 | 3.4 | 3.5 | 0.3 |
LAD prox | 3.4 | 4.0 | <0.001 | 3.1 | 3.3 | 0.1 |
LAD med | 3.1 | 3.6 | <0.001 | 2.7 | 3.1 | 0.06 |
LAD dist | 2.6 | 3.2 | <0.001 | 2.1 | 2.7 | 0.006 |
LCX prox | 3.2 | 3.6 | 0.01 | 2.4 | 2.7 | 0.1 |
LCX med | 2.8 | 3.3 | <0.001 | 2.4 | 2.9 | 0.004 |
LCX dist | 2.5 | 3.9 | 0.02 | 2.0 | 2.5 | 0.004 |