Application of 3D-CISS Sequence in MRI of Inner Ear and Internal Auditory Canal

Purpose To study the technical and clinical application of MRI of inner ear and internal auditory canal (IAC) using 3D CISS sequence. Methods Volume scans of temporal bone was performed in 30 patients (60 ears) using 3D CISS sequence.Post procession with multiplanar reconstruction (MPR) and maximum intensity projection (MIP) were operated to evaluate the ability of 3D CISS sequence to show anatomic structures and lesions in inner ear and internal auditory canal. Results Scan combined with post procession using 3D CISS sequence could precisely show labyrinth,nerves and vessels in inner ear and internal auditory canal,as well as the relationship between lesions and structures around.As to the ability to evaluate nerves in IAC,MPR was superior to MIP. Conclusion 3D CISS sequence can precisely show structures and lesions in inner ear and internal auditory canal,therefore it is of high value in clinical application.