Related Experiment Video
Updated: Jul 15, 2026

Three-dimensional Location Approach with Silk Thread Guided Laparoscopic Segmentectomy for Liver Tumor
Published on: May 23, 2025
Three-dimensional visualization of liver segments on contrast-enhanced intraoperative sonography
Junichi Arita1, Norihiro Kokudo, Keming Zhang
1Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, Graduate School of Medicine, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan. jarita-tky@umin.ac.jp
Objective:
The purpose of this study was to describe a novel technique for the 3D visualization of a liver segment on sonography, using a second-generation contrast agent in a dog, that would be applicable for anatomic hepatic resection.
Conclusion:
After a mixture of YM454 and indigo carmine was injected into a portal vein branch, well-delineated 3D segmental staining was seen for approximately 10 minutes in harmonic mode sonography. The addition of indigo carmine significantly prolonged the contrast effect of YM454.
Related Concept Videos
Gross Anatomy of the Liver
Located under the diaphragm, the liver is almost entirely ensconced within the rib cage, providing it with substantial protection. Except for the superior most bare area, the liver's surface is covered...
Ultrasound II: Endoscopic Ultrasound and FibroScan
Endoscopic Ultrasound (EUS):
Ultrasonography
During an ultrasonography procedure, a handheld device called a...
