The provider inserts a catheter percutaneously (through a small incision in the skin) and removes debris or stonelike material (calculi) from the biliary ducts and/or gallbladder, a small pear shaped organ behind the liver that stores bile. The provider can use various methods to destroy the gallstones. The provider performs this procedure using image guidance, such as fluoroscopy, an X–ray technology that displays live images on a video monitor. The procedure includes radiological supervision and interpretation.
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