Basic steps involved in performing percutaneous cholecystostomy
With US guidance, the gallbladder is accessed with a needle. A wire is placed, and after tract dilation over the wire, a drainage catheter is placed into the gallbladder and allowed to drain externally. A subcostal, transhepatic path to the gallbladder is generally preferred because it may guard against bile leakage into the peritoneal space if the catheter is inadvertently dislodged.
