Table 1

Agreement between endoscopic retrograde cholangiography (ERC) and magnetic resonance cholangiography (MRC) on stricture type

Stricture type No of correct MRC gradings/ERC grading
II6/7 (1: undergraded as type I)
III4/7 (2: undergraded as type II; 1: MRC unsuccessful)
IV0/2 (1: undergraded as type III; 1: MRC unsuccessful)
  • Overall agreement: 70% (78% after exclusion of two technically unsuccessful MRC attempts).