Table 1. Patency control of ACVB and IMA bypass grafts by MRA demonstrates high sensitivity assessing patent IMA grafts and high specificity in detecting venous LAD and RCA grafts
| CABG |
ACVB |
IMA |
LAD |
RCX |
RCA |
All CABG |
| Sensitivity (%) |
87.9 |
93.8 |
95.7 |
82.2 |
88.9 |
89.8 |
| Specificity (%) |
100 |
50 |
100 |
85.7 |
100 |
93.8 |
| Positive predictive value (%) |
100 |
93.8 |
100 |
93.3 |
100 |
97.8 |
| Negative predictive value (%) |
77.8 |
50.0 |
88.9 |
66.7 |
50.0 |
75.0 |
| Efficiency |
1.78 |
1.44 |
1.89 |
1.6 |
1.5 |
1.73 |
|
The highest test efficiency was calculated for venous LAD grafts.