What position is the patient typically in during the PTC procedure?

During the PTC (Percutaneous Transhepatic Cholangiography) procedure, the patient is typically positioned supine with the right arm elevated above the head. This position facilitates access to the right upper quadrant of the abdomen and allows the interventional radiologist to obtain optimal visualization of the biliary tree through the liver.

Elevating the right arm helps to move the rib cage out of the way, providing better access to the area where the needle will be inserted. It also helps to expand the chest cavity, thereby making it easier to visualize internal structures during imaging. This specific positioning is crucial for minimizing complications and ensuring the best imaging quality to guide the procedure effectively.

In contrast, other positions such as sitting upright or lying prone do not provide the same level of access and comfort for performing the procedure, potentially making it more challenging for the healthcare provider to obtain clear imaging or to reach the bile ducts effectively.