Fig. 3From: Endoscopic nasobiliary drainage-based saline-injection ultrasound: an imaging technique for remnant stone detection after retrograde cholangiopancreatographyComparison between occlusion cholangiogram and ENBD saline injection in ultrasounds in a 78-year-old women. A. There are no significant stones found in occlusion cholangiogram. B. Remnant stone is found by ENBD saline injection ultrasoundBack to article page