title: Isotropic diffusion-weighted MR imaging with tetrahedral gradients in the upper abdomen.
abstract: A tetrahedral gradient diffusion sequence for body imaging for a 1.5T scanner was implemented, and we compared the quality of images acquired with the new technique and with the conventional orthogonal technique. Image quality was better using the tetrahedral technique in terms of signal homogeneity in the right liver lobe and signal loss artifact in the left lobe, and the technique was considered useful for magnetic resonance imaging in the upper abdomen.
authors.affiliation: Department of Radiology, Osaka University Graduate School of Medicine, Japan. mhori@radiol.med.osaka-u.ac.jp
authors.forename: Masatoshi
authors.initials: M
authors.lastname: Hori
authors.forename: Tonsok
authors.initials: T
authors.lastname: Kim
authors.forename: Takamichi
authors.initials: T
authors.lastname: Murakami
authors.forename: Hiromitsu
authors.initials: H
authors.lastname: Onishi
authors.forename: Naohiro
authors.initials: N
authors.lastname: Tsuboyama
authors.forename: Keigo
authors.initials: K
authors.lastname: Osuga
authors.forename: Kaname
authors.initials: K
authors.lastname: Tomoda
authors.forename: Hironobu
authors.initials: H
authors.lastname: Nakamura
authors.forename: Masaya
authors.initials: M
authors.lastname: Hirano
authors.forename: Atsushi
authors.initials: A
authors.lastname: Nozaki
mesh_terms: D000005:Abdomen / Q000473:pathology*; D000368:Aged; D000369:Aged, 80 and over; D016880:Anisotropy; D038524:Diffusion Magnetic Resonance Imaging / Q000379:methods*; D005260:Female; D006801:Humans; D007089:Image Enhancement / Q000379:methods*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D008113:Liver Neoplasms / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted