The patient
This study was observational study(cross-sectional study). According to
the diagnostic criteria established by the American Academy of
Otolaryngology, Head and Neck Surgery in 20154, a
total of 50 patients with unilateral definited MD at the Department of
Otolaryngology in the First Hospital of China Medical University from
November 2020 to December 2021 were included. There were 21 male and 29
female patients, aged between 28 to 74 years old, with an average age of
56 years old. Among them, there were 31 cases of left ear and 19 cases
of right ear. All patients underwent physical examination and medical
history collection by professional otologists. They all presented with
varying degrees of hearing loss in the affected ear, persistent tinnitus
and intermittent vertigo.
None of the patients had a history of gadolinium contrast allergy,
neurogenic deafness or otitis media, or ear surgery. This study was
approved by the Medical Ethics Committee of our Hospital (2018-298-2),
and all patients provided informed consent for MRI enhancement.