Use of diffusion-weighted imaging in the noninvasive diagnostic of obstructed biliary ducts.

Objective: This study sought to evaluate the role of diffusion-weighted imaging (DWI) in differentiation between obstructed and unobstructed bile ducts in patients undergoing magnetic resonance imaging (MRI).

Methods: Eighty-four patients, 40 males and 44 females (mean age: 56.4 ± 15.