Therapeutic microcoil embolization for severe colonic hemorrhage is an effective and well-tolerated procedure.

Percutaneous transhepatic cholangiography and biliary drainage can be performed with high technical success and low complication rates in pediatric liver transplant patients, even in those with nondilated intrahepatic ducts.

Balloon dilatation is a safe and effective treatment for biliary-enteric strictures following pediatric liver transplantation.

Approximately two-thirds of retrievable filters were not retrieved even though more than 85% of the filters were initially intended for temporary use. The major reasons for filter left in situ despite initial plans for retrieval were death, need for ongoing PE protection, failed retrieval, loss to follow-up, discontinued care, and physician oversight.

In patients undergoing hemodialysis in whom conventional venous access sites have been exhausted, interventional radiologic venous recanalization for the placement of permanent catheters is safe and effective. Catheters placed in recanalized veins or small collateral veins have shorter primary patency rates compared with those of conventionally placed catheters, but the former can be maintained for relatively long periods.