intraoperative cholangiogram
Also written as: IOC — Intraoperative cholangiogram
Real-time X-ray imaging of bile ducts during surgery using contrast injection to assess ductal anatomy and identify stones or injuries.
Full Definition
Intraoperative cholangiogram (IOC) is a radiographic procedure performed during biliary surgery to visualize the bile duct system using contrast material injected through the cystic artery or choledochotomy. In emergency surgery, IOC helps identify retained stones, ductal injuries, or anatomical variants that could affect surgical outcomes. The procedure involves injecting contrast under fluoroscopic guidance and interpreting real-time images to ensure ductal patency and absence of filling defects. IOC is particularly valuable in emergency cholecystectomy for acute cholangitis or when ductal injury is suspected during difficult dissection.
Usage
Usage note: Commonly abbreviated as IOC in surgical notes.
In Context
- "Intraoperative cholangiogram confirmed no retained stones in the common bile duct." — Emergency cholecystectomy operative report
- "IOC was performed to rule out ductal injury after difficult dissection." — Biliary surgery documentation