Reduction of a high-field dielectric artifact with homemade gel.
We developed an original dielectric-equivalent gel (Japanese Patent Application ID: P2004-236876A, February 6, 2003) pad that could improve inhomogeneous images caused primarily by B(1) homogeneity on a high-tesla magnetic resonance (MR) system. Made easily from various ingredients, our gel could reduce interference from radiofrequency waves at an object's surface and show changes in B(1) inhomogeneity. We herein assess the gel's effect using a plastic-bottle phantom on a 3T MR system.
Takayama
Yukihisa
Y
Biophysics Group, Molecular Imaging Center, National Institute of Radiological Sciences, Chiba, Japan.
Nonaka
Hiroi
H
Nakajima
Manabu
M
Obata
Takayuki
T
Ikehira
Hiroo
H
D016477:Artifacts; D005780:Gelatin; D005782:Gels; D006722:Honey; D008279:Magnetic Resonance Imaging / Q000295:instrumentation* / Q000379:methods*; D008280:Magnetics; D019047:Phantoms, Imaging; D010969:Plastics; D011846:Radio Waves; D012965:Sodium Chloride; D014867:Water
D005782:Gels; D010969:Plastics; D014867:Water; D012965:Sodium Chloride; D005780:Gelatin