title: Effects of densely sampled dipole field on quantitative susceptibility mapping.
abstract: We present a method of resolving a fine structure in a magnetic susceptibility map, which cannot be distinguished by the conventional method, by using a densely sampled dipole field and by expanding a magnetic field perturbation map. We investigate effects of a sampling density of the dipole field on the spatial resolution and on obtained susceptibility values. When the sampling density is increased, a shape of an otherwise undistinguishable fine structure recovers gradually in an obtained susceptibility map. Furthermore, a peak susceptibility value of the fine structure is slowly getting closer to the correct values.
authors.forename: Yuya
authors.initials: Y
authors.lastname: Umemoto
authors.forename: Mai
authors.initials: M
authors.lastname: Murashima
authors.forename: Tomohiro
authors.initials: T
authors.lastname: Ueno
authors.forename: Naozo
authors.initials: N
authors.lastname: Sugimoto
mesh_terms: D000465:Algorithms; D001921:Brain / Q000473:pathology; D005583:Fourier Analysis; D006801:Humans; D007090:Image Interpretation, Computer-Assisted; D008279:Magnetic Resonance Imaging / Q000379:methods*; D019636:Neurodegenerative Diseases / Q000175:diagnosis*; D019047:Phantoms, Imaging