title: [Active MR tracking system at 0.2T MR, a preliminary report: real time position tracking on interventional MR].
abstract: An active MR tracking system was installed in a 0.2 T open-type MRI. Interventional devices with a receive-only microcoil at their tips were newly developed for tracking at 0.2T. The low signal-to-noise ratio at 0.2T required the microcoils to have a diameter of about 2 mm and 20 turns for stable tracking. Simulation of MR-guided biopsy using biplane images with tracking in the gelatin phantom was performed. MR tracking in the aorta and IVC of a dog by a catheter with a microcoil at its tip was successful.
authors.affiliation: Department of Radiology, Yamanashi Medical University.
authors.forename: S
authors.initials: S
authors.lastname: Aoki
authors.forename: A
authors.initials: A
authors.lastname: Nanbu
authors.forename: T
authors.initials: T
authors.lastname: Araki
authors.forename: N
authors.initials: N
authors.lastname: Shimazu
authors.forename: T
authors.initials: T
authors.lastname: Ichikawa
authors.forename: H
authors.initials: H
authors.lastname: Kumagai
authors.forename: K
authors.initials: K
authors.lastname: Kachi
authors.forename: T
authors.initials: T
authors.lastname: Araki
mesh_terms: D000818:Animals; D004285:Dogs; D005069:Evaluation Studies as Topic; D008279:Magnetic Resonance Imaging / Q000295:instrumentation / Q000379:methods* / Q000592:standards; D008961:Models, Structural