Published online Aug 7, 2017. doi: 10.3748/wjg.v23.i29.5438
Peer-review started: February 8, 2017
First decision: March 3, 2017
Revised: April 8, 2017
Accepted: June 19, 2017
Article in press: June 19, 2017
Published online: August 7, 2017
Core tip: Laparoscopic ultrasound (LUS) during cholecystectomy allows a non-invasive study of the biliary tract, with an excellent ability to detect common bile duct stones and identify anatomy. Unlike intraoperative cholangiography, LUS can be performed before Calot’s triangle dissection, which facilitates the mapping of biliary and hilar structures during difficult scenarios such as severe inflammation and fibrosis. Cheap, quick, and non-irradiating LUS can be repeated at will during the operation. Adjacent organs can also be examined, allowing incidental findings. Our review of the recent literature highlights the advantages of LUS, despite its underuse, particularly in difficult cholecystectomies when the anatomy is obscured.