[The supra-aortic blood supply in the Takayasu syndrome determined by digital subtraction angiography].

In a case of Takayasu's aortitis, digital subtraction angiography (DSA) revealed the detailed anatomy of patent intracerebral vessels through intraspinal and cervical collaterals with the only blood supply arising from the left vertebral artery. DSA gives not only anatomical, but also dynamic information, which means the direction of the blood stream is revealed.