title: Integrated RF-shim coil allowing two degrees of freedom shim current.
abstract: High-quality magnetic resonance imaging and spectroscopic measurements require a highly homogeneous magnetic field. Different from global shimming, localized off-resonance can be corrected by using multi-coil shimming. Previously, integrated RF and shimming coils have been used to implement multi-coil shimming. Such coils share the same conductor for RF signal reception and shim field generation. Here we propose a new design of the integrated RF-shim coil at 3-tesla, where two independent shim current paths are allowed in each coil. This coil permits a higher degree of freedom in shim current distribution design. We use both phantom experiments and simulations to demonstrate the feasibility of this new design.
authors.lastname: Jiazheng Zhou
authors.lastname: Ying-Hua Chu
authors.lastname: Yi-Cheng Hsu
authors.lastname: Pu-Yeh Wu
authors.forename: Jason P
authors.initials: JP
authors.lastname: Stockmann
authors.lastname: Fa-Hsuan Lin
mesh_terms: D060526:Magnetic Fields; D008279:Magnetic Resonance Imaging / Q000295:instrumentation* / Q000379:methods*; D019047:Phantoms, Imaging; D011846:Radio Waves; D012984:Software