PMC9582759_01
CISS-MRI in oblique axis reconstructed along the cisternal course of the vestibulocochlear and facial nerves (the horizontal line in (A,B) depicts the axis of (C); vertical lines delineate the axis of the other planes, (A,B), respectively; lines are centered on contact point of the vestibulocochlear nerve and the basilar artery). The dilated and elongated basilar artery (star) displaces the nerves, and direct contact is shown (arrow).
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F1
The amplitudes of the ocular vestibular-evoked myogenic potentials were reduced on the left side (p1-n1 amplitude: left 3.7muV, right 5.4 muV), as were the amplitudes of the cervical vestibular-evoked myogenic potentials (p1-n1 amplitude: left 74 muV, right 102 muV) (for details please refer to Supplementary Figure 1). The MRI of the brain showed an elongated basilar artery leading to an indentation of the facial and vestibulocochlear nerves on the left side (Figure 1).