Choledocholithiasis diagnosis in relation to stone size
| Size | No of cases observed by reference method | No of cases observed by MRC |
| ⩽6 mm | 27 (55.1) | 9/27 (33.3) |
| >6 and ⩽10 mm | 16 (32.7) | 15/16 (93.7) |
| >10 mm | 6 (12.2) | 4/6 (66.7) |
| Total | 49 (100) | 28/49 (57.1) |
Values in parentheses are percentage of cases with lithiasis. In patients with stones of various size, the largest one is taken account of for the table.
MRC, magnetic resonance cholangiography.