title: Rigid diffusion phantom: acquisition and simulation.
abstract: Diffusion tensor imaging has already been a popular imaging modality for clinical researches. However, to setup an imaging protocol is not straightforward. This problem is critical issue for multi-center studies. We developed anisotropy phantoms and examined the feasibility of using water-filled arrays of channeled silicon plates. Various channel sizes were tested to optimize the diffusion and anisotropy properties. We succeeded in producing a phantom with high anisotropy (FA=0.8). However, a reason of high axial diffusivity needs further investigations.
authors.affiliation: Center for the Promotion of Excellence in Higher Education, Kyoto University, Japan. sakai@mbox.kudpc.kyoto-u.ac.jp
authors.forename: Koji
authors.initials: K
authors.lastname: Sakai
authors.forename: Takashi
authors.initials: T
authors.lastname: Azuma
authors.forename: Susumu
authors.initials: S
authors.lastname: Mori
mesh_terms: D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005240:Feasibility Studies; D006801:Humans; D007090:Image Interpretation, Computer-Assisted / Q000295:instrumentation* / Q000379:methods; D008279:Magnetic Resonance Imaging / Q000295:instrumentation*; D008962:Models, Theoretical; D019047:Phantoms, Imaging