There is a wide range of liver and biliary interventional procedures, both diagnostic and therapeutic, most commonly using CT-guidance or ultrasound-guidance.Vascular Interventions:
Procedure in which the bile duct punctured through skin and liver by a needle under ultrasound guidance. Wire is placed followed by catheter. This procedure is done under local anesthesia or mild sedation.
Biliary externalization:In cases where wire can’t go beyond obstruction or patients with active infection
Biliary internalization:Bile is to be drained within only; no external bag. For malignancy metallic stent is placed.Why (Indications)?
To relieve the jaundice or itching.