Abstract #1335

Visualization of Auditory Ossicles and Facial Nerve Canal: Comparison between Ultrashort TE MR and CT.

Takao Kumazawa¹, Yasutaka Fushimi¹, Tomohisa Okada^1,2, Takuya Hinoda¹, Tsutomu Okada¹, Akira Yamamoto¹, Yutaka Natsuaki³, and Kaori Togashi¹

¹Kyoto University Graduate School of Medicine, Kyoto, Japan, ²Human Brain Research Center, Kyoto University Graduate School of Medicine, Kyoto, Japan, ³Siemens Medical Solutions USA, Inc., Huntington Beach, CA, United States

The visualization of the inner ear and facial nerve canal was compared between PETRA and CT in this study. The total 24 patients who underwent MRI including PETRA and whole brain CT were enrolled, and visualization of auditory ossicles, semicircular canals, and facial nerve canal are evaluated. All of auditory ossicles, semicircular canals, and facial nerve canal were more visible on CT than PETRA, however, facial nerve canal and semicircular canals were commonly recognized, and auditory ossicles were occasionally visualized on PETRA.

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