title: Effectiveness of Disaster-prevention Technologies against Quake-induced Damage of MR Scanners during the Great East Japan Earthquake.
abstract: In the present study, we have performed a statistical analysis to investigate damages in magnetic resonance (MR) scanners caused by the Great East Japan Earthquake (GEJE, magnitude 9.0) and evaluated whether these disaster-prevention technologies contributed to the reduction of damages in the GEJE or not. It was confirmed that the extent of damage was significantly different between seismic scale (SS) 5 and SS over 6. Our survey study demonstrated that anchoring of MR facilities reduced damages due to quakes and demonstrated that anchoring is an efficient method for quake-induced damage prevention. The odds ratio revealed that base isolation was very useful to prevent damages in MR scanners.
authors.affiliation: National Institute of Occupational Safety and Health.
authors.forename: Sachiko
authors.initials: S
authors.lastname: Yamaguchi-Sekino
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Machida
authors.forename: Toshio
authors.initials: T
authors.lastname: Tsuchihashi
authors.forename: Haruo
authors.initials: H
authors.lastname: Isoda
authors.forename: Takashi
authors.initials: T
authors.lastname: Noguchi
authors.forename: Toshiharu
authors.initials: T
authors.lastname: Nakai
mesh_terms: D004189:Disaster Planning; D055866:Earthquakes; D004869:Equipment Safety; D006801:Humans; D007564:Japan; D008279:Magnetic Resonance Imaging / Q000295:instrumentation*