[MR cholangiography].

A time-reversed gradient echo pulse sequence (PSIF; Siemens), one of the MR imaging methods based on steady-state free precession of excited spins, makes the bile duct quite bright relative to the surrounding tissue. Using this sequence under breath hold combined with a two or three-dimensional data set and maximum intensity projection method provided fair delineation of the dilated bile duct and the site of its obstruction or stricture. Though the clinical experience is limited, this technique is considered to be of value in the non-invasive evaluation of bile duct system in the patient of obstructive jaundice.