Methods
All patients underwent 4‐hour delayed‐enhanced 3D‐FLAIR MR imaging for
identifying lesion-side laterality and enhanced labyrinth patterns.
Audiologic and vestibular function tests were performed. Vestibular
function test sum scores were additionally calculated by summing the
scores on each test and defining normal as 0 and abnormal as 1. The
hearing recovery was evaluated according to the American Academy of
Otolaryngology-Head and Neck Surgery Criteria at 3 months after the end
of treatment.