title: Additional benefit of computed diffusion-weighted imaging for detection of hepatic metastases at 1.5T.
abstract: The aim is to investigate the added value of computed diffusion-weighted magnetic resonance imaging (DWI) at 1.5T in detecting hepatic metastases. Fifty-six patients with a total of 100 hepatic metastases were included. Computed DWI was synthesized from lower b values. Diagnostic performance was evaluated by receiver operating characteristic (ROC) curve analysis. The sensitivity was calculated and analyzed. The area under the ROC curve of the computed DWI was larger than that of acquired DWI. Both readers detected significantly more hepatic metastases with combined acquired DWI/computed DWI. Combined use of computed DWI with acquired DWI helped to provide higher sensitivity at 1.5T.
authors.affiliation: Dept. of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, 54 kawahara-cho, Shogoin, Sakyo, Kyoto, 606-8507, Japan. Electronic address: butaemon@kuhp.kyoto-u.ac.jp.
authors.forename: Seiya
authors.initials: S
authors.lastname: Kawahara
authors.affiliation: Dept. of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, 54 kawahara-cho, Shogoin, Sakyo, Kyoto, 606-8507, Japan. Electronic address: sayuki@kuhp.kyoto-u.ac.jp.
authors.forename: Hiroyoshi
authors.initials: H
authors.lastname: Isoda
authors.affiliation: Dept. of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, 54 kawahara-cho, Shogoin, Sakyo, Kyoto, 606-8507, Japan. Electronic address: kfb@kuhp.kyoto-u.ac.jp.
authors.forename: Koji
authors.initials: K
authors.lastname: Fujimoto
authors.affiliation: Dept. of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, 54 kawahara-cho, Shogoin, Sakyo, Kyoto, 606-8507, Japan. Electronic address: hshimizu@kuhp.kyoto-u.ac.jp.
authors.forename: Hironori
authors.initials: H
authors.lastname: Shimizu
authors.affiliation: Dept. of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, 54 kawahara-cho, Shogoin, Sakyo, Kyoto, 606-8507, Japan. Electronic address: akihirof@kuhp.kyoto-u.ac.jp.
authors.forename: Akihiro
authors.initials: A
authors.lastname: Furuta
authors.affiliation: Dept. of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, 54 kawahara-cho, Shogoin, Sakyo, Kyoto, 606-8507, Japan. Electronic address: arizono@kuhp.kyoto-u.ac.jp.
authors.forename: Shigeki
authors.initials: S
authors.lastname: Arizono
authors.affiliation: Dept. of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, 54 kawahara-cho, Shogoin, Sakyo, Kyoto, 606-8507, Japan. Electronic address: goohno@kuhp.kyoto-u.ac.jp.
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Ohno
authors.affiliation: Dept. of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, 54 kawahara-cho, Shogoin, Sakyo, Kyoto, 606-8507, Japan. Electronic address: rickdom@kuhp.kyoto-u.ac.jp.
authors.forename: Rikiya
authors.initials: R
authors.lastname: Yamashita
authors.affiliation: Dept. of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, 54 kawahara-cho, Shogoin, Sakyo, Kyoto, 606-8507, Japan. Electronic address: nanohananooki@gmail.com.
authors.forename: Ayako
authors.initials: A
authors.lastname: Ono
authors.affiliation: Dept. of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, 54 kawahara-cho, Shogoin, Sakyo, Kyoto, 606-8507, Japan. Electronic address: ktogashi@kuhp.kyoto-u.ac.jp.
authors.forename: Kaori
authors.initials: K
authors.lastname: Togashi
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D038524:Diffusion Magnetic Resonance Imaging / Q000379:methods*; D005260:Female; D006801:Humans; D007089:Image Enhancement / Q000379:methods*; D008113:Liver Neoplasms / Q000175:diagnosis* / Q000556:secondary*; D008297:Male; D008875:Middle Aged; D009362:Neoplasm Metastasis; D012372:ROC Curve
keywords: Computed DWI; Diffusion MRI; Hepatic metastases; Magnetic resonance imaging