cholangiogram
Pronunciation: koh-LAN-jee-oh-gram
An intraoperative X-ray study using contrast dye to visualize the bile duct anatomy during laparoscopic surgery.
Full Definition
A cholangiogram is a radiographic imaging study performed during laparoscopic cholecystectomy to evaluate the biliary tree anatomy and detect common bile duct stones or anatomical variations. The procedure involves injection of contrast material through the cystic artery or directly into the common bile duct via a small catheter. Cholangiography helps surgeons identify the critical view of safety, avoid bile duct injuries, and determine if additional intervention is needed for choledocholithiasis. The study may be performed routinely or selectively based on preoperative indicators such as elevated liver enzymes, jaundice, or ductal dilation.
Usage
Usage note: Often abbreviated as IOC (intraoperative cholangiogram) in surgical notes.
In Context
- "Intraoperative cholangiogram revealed a small stone in the common bile duct." — Operative finding
- "The cholangiogram demonstrated normal biliary anatomy with good contrast flow." — Imaging report