Magnified vertebral angiography on Stenvers projection was carried out in 13 ears (8 cases) and it proved to be an excellent method to visualize the anterior inferior cerebellar artery.
The internal auditory artery was visualized in two ears, the anterior inferior cerebellar artery was seen originating the basilar artery in 12 ears, and posterior inferior cerebellar artery in one ear to form.the vascular loop.
The vascular loop was recognized in 12 ears. A space occupying lesion around the internal auditory canal is readily diagnosed by recognizing distortions of the vascular loop.
