Table 2 Tumor location with regard to the APR by MRI and intraoperative findings
By intraoperative findings | ||||
|---|---|---|---|---|
Above the APR | Straddle the APR | Below the APR | Total | |
By MRI | ||||
Above the APR | 18 | 2 | 3 | 23 |
Straddle the APR | 0 | 34 | 6 | 40 |
Below the APR | 0 | 0 | 47 | 47 |
Total | 18 | 36 | 56 | 110 |
Accuracy rate | 100% (18/18) | 94.40% (34/36) | 83.90% (47/56) | 90.00% (99/110) |