What is the typical site of puncture for percutaneous lower extremity angiography?

The femoral artery is the typical site of puncture for percutaneous lower extremity angiography due to its size and accessibility. This artery is located in the groin region and offers a direct route to the vascular system, allowing for easy catheterization and manipulation during angiographic procedures.

Using the femoral artery also facilitates close proximity to the lower extremities, enabling better access to the arteries supplying the legs and feet. The arterial wall's thickness and depth make it easier to puncture without significant risk of complications, which is vital for successful angiographic interventions.

Other sites like the radial artery or brachial artery are more commonly used for upper extremity procedures or specific cases but are not the first choice for lower extremity angiography. The popliteal artery, while located behind the knee and associated with the lower limbs, is deeper and more challenging to access compared to the femoral artery. This makes the femoral artery the preferred and standard puncture site in lower extremity angiographic procedures.