title: Development of a patch antenna array RF coil for ultra-high field MRI.
abstract: In radiofrequency (RF) coil design for ultra-high-field magnetic resonance (MR) imaging, short RF wavelengths present various challenges to creating a big volume coil. When imaging a human body using an ultra-high magnetic field MR imaging system (magnetic flux density of 7 Tesla or more), short wavelength may induce artifacts from dielectric effect and other factors. To overcome these problems, we developed a patch antenna array coil (PAAC), which is a coil configured as a combination of patch antennas. We prototyped this type of coil for 7T proton MR imaging, imaged a monkey brain, and confirmed the coil's utility as an RF coil for ultra-high-field MR imaging.
authors.affiliation: Takashima Seisakusho Co., Ltd, Tokyo, Japan.
authors.forename: Manabu
authors.initials: M
authors.lastname: Nakajima
authors.forename: Iwao
authors.initials: I
authors.lastname: Nakajima
authors.forename: Shigeru
authors.initials: S
authors.lastname: Obayashi
authors.forename: Yuji
authors.initials: Y
authors.lastname: Nagai
authors.forename: Takayuki
authors.initials: T
authors.lastname: Obata
authors.forename: Yoshiyuki
authors.initials: Y
authors.lastname: Hirano
authors.forename: Hiroo
authors.initials: H
authors.lastname: Ikehira
mesh_terms: D000818:Animals; D001921:Brain / Q000033:anatomy & histology; D004867:Equipment Design; D000882:Haplorhini; D007089:Image Enhancement / Q000295:instrumentation*; D008279:Magnetic Resonance Imaging / Q000295:instrumentation*; D011846:Radio Waves