Comparison of choledocholithiasis diagnosis by magnetic resonance cholangiography (MRC) and reference methods
| Stones present (reference method) | No stones (reference method) | |
| Stones (MRC) | 28 | 0 |
| No stones (MRC) | 21 | 21 |
| Total | 49 | 21 (3 non-lithiasis obstructions) |