Fig. 19
From: Gallstones top to toe: what the radiologist needs to know
(a) Sagittal ultrasound, (b) fluoroscopic ERCP cholangiogram, (c) T2-weighted axial MRI and (d) coronal MIP MRI of the biliary tree. These images demonstrate multiple filling defects (arrows) within the common bile duct with associated biliary duct dilatation consistent with obstructing choledocholithiasis