One hundred patients with normal MRI findings of the inner ear and clear images of the semicircular canal and eyeball bottom were selected. The presence of local lesions that might affect the anatomical structure of the semicircular canals and the abnormal cranial structure was excluded. Using Siemens 1.5 T superconducting magnetic resonance system and standard head coil for inner ear examination. 3D constructive interference in steady state sequence (3D-CISS) (TR: 6.0 ms, TE: 2.7 ms, Fov: 135 mm × 180 mm, Marix: 256 × 192, Thickness: 0.7 mm) was performed (9 (link)).
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