High-resolution MR imaging of the inner ear.
The magnetic resonance (MR) images of the temporal bones have been analyzed, these MR images taken with head coils utilizing a 1.5-Tesla magnet whole-body imaging system. The MR images were acquired by means of spin-echo pulse sequences, and the thickness of the sections was 2.5 mm. By this modality, the T2-weighted images could clearly delineate the details of the liquid-containing labyrinthine structures and facial nerve. MR imaging can provide information that is unobtainable from a CT scan in the diagnosis of inner ear disorders, particularly as to whether the membranous labyrinth is filled with the lymph fluid or is fibrosed. This point is one of the greatest advantages of MR imaging over a high-resolution CT scan.
Kumakawa
K
K
Department of Otorhinolaryngology, Toranomon Hospital, Tokyo, Japan.
Takemori
S
S
D007758:Ear, Inner / Q000473:pathology*; D006801:Humans; D007759:Labyrinth Diseases / Q000175:diagnosis*; D007761:Labyrinthine Fluids; D008279:Magnetic Resonance Imaging; D012016:Reference Values