Femoral percutaneous catheterization in infants and small children for cerebral angiography.

An improved technique of selective cerebral angiography for infants and small chicken is described. The needle is inserted approximately 45 degrees to the skin in order to avoid subintimal placement of the tip. After good backflow is established, the guidewire is advanced to a position in the descending aorta. A No. 3 polyethylene catheter and 21-gauge scalp vein needle were most successful.