Table 2.
Comparison of intravascular pressures using a catheter transducer versus PC-MRI. The average percent difference in measurements was 6.1%. Data is reported as systolic/diastolic pressure pairs.
| Pressure measured | ||||
|---|---|---|---|---|
| Pre-operative | With catheter transducer | With PC-MRI | Percent difference | |
| Cavernous ICA | Systolic | 99 | 90.6 | -0.6% |
| Diastolic | 62 | 71.5 | -15.3% | |
| Supraclinoid ICA | Systolic | 85 | 83.1 | 2.2% |
| Diastolic | 55 | 52.2 | 5.1% | |
| MC-M1 | Systolic | 76 | 72.1 | 5.1% |
| Diastolic | 52 | 47.1 | 9.4% | |
| Postoperative | ||||
| Cavernous ICA | Systolic | 89 | 84.2 | 5.4% |
| Diastolic | 49 | 52.7 | -5.5% | |
| Supraclinoid ICA | Systolic | — | — | |
| Diastolic | — | — | ||
| MC-M1 | Systolic | — | 82.1 | — |
| Diastolic | — | 54.6 | — | |