Development of a patch antenna array RF coil for ultra-high field MRI.
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.
Nakajima
Manabu
M
Takashima Seisakusho Co., Ltd, Tokyo, Japan.
Nakajima
Iwao
I
Obayashi
Shigeru
S
Nagai
Yuji
Y
Obata
Takayuki
T
Hirano
Yoshiyuki
Y
Ikehira
Hiroo
H
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