Cholecystocholangiography by Direct Intragallbladder Injection of ICG

The objective of this clinical trial is to visualize the bile ducts by injecting a contrast that is only visible with infrared light. For this, a quantity of bile will be extracted from the gallbladder by puncture and the same amount of contrast will be introduced. During the intervention teh tissue wil be exposure to infrared light to visualize the bile ducts. This technique aims to increase safety in surgery to avoid damaging bile or vascular structures during gallbladder interventions.