title: [Application of brain diffusion-weighted imaging performed using readout segmentation of long variable echo trains].
abstract: We report the preliminary use of the readout segmentation of long variable echo trains(RESOLVE)sequence, a novel magnetic resonance(MR)scanning technique based on a readout segmented echo planar imaging(EPI)strategy. RESOLVE enables high-resolution diffusion-weighted imaging(DWI)by minimizing susceptibility distortions and T2* blurring. The software for this sequence was provided by Siemens AG, Germany. Previously, we determined appropriate sequence parameters to obtain sufficiently high-resolution images through phantom studies. Then, we applied the sequence to some clinical cases with neurological disorders and analyzed the RESOLVE-DWI data with diffusion tensor imaging(DTI)techniques. In this article, we report clinical application of the RESOLVE sequence in two cases, one with cerebellar infarction and one with an intracranial epidermoid cyst. In both cases, RESOLVE-DWI clearly exposed structures that were obscured or severely distorted by artifacts on usual single-shot EPI-DWI. DTI analyses for RESOLVE-DWI data provided detailed information about fiber tracts and cranial nerves.
authors.affiliation: Shinjinkai, Kitanihon Noshinkeigeka Hospital.
authors.forename: Go
authors.initials: G
authors.lastname: Ishida
authors.forename: Makoto
authors.initials: M
authors.lastname: Oishi
authors.forename: Ken
authors.initials: K
authors.lastname: Morii
authors.forename: Kenji
authors.initials: K
authors.lastname: Hasegawa
authors.forename: Akihiko
authors.initials: A
authors.lastname: Saito
authors.forename: Mitsuya
authors.initials: M
authors.lastname: Sato
authors.forename: Osamu
authors.initials: O
authors.lastname: Takizawa
authors.forename: Katsutoshi
authors.initials: K
authors.lastname: Murata
authors.forename: D A
authors.initials: DA
authors.lastname: Porter
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Matsuzawa
authors.forename: Yukihiko
authors.initials: Y
authors.lastname: Fujii
mesh_terms: D000368:Aged; D001927:Brain Diseases / Q000473:pathology*; D038524:Diffusion Magnetic Resonance Imaging / Q000379:methods; D017352:Echo-Planar Imaging; D005260:Female; D006801:Humans; D007089:Image Enhancement / Q000379:methods; D007090:Image Interpretation, Computer-Assisted / Q000379:methods; D008297:Male; D008875:Middle Aged