Spinal cord angiography using 4x magnification.

Angiography at 4X magnification using a microfocal x-ray tube (0.05 mm) gives better resolution and detail of the spinal cord than conventional angiography. This technique permits demonstration of feeding arteries and draining veins, the course of the radiculomedullary arteries (including the artery of Adamkiewicz), ramification of communicating branches, and location of stenotic portions.