title: [Survey report on magnetic resonance equipment damage in areas in Miyagi Prefecture affected by the Great East Japan Earthquake].
abstract: A questionnaire comprising 14 items, inquiring about the state of damage, whether safety could be ensured, and progress of repair and restoration was distributed to 984 facilities in seven prefectures on the Pacific coast as part of a fact-finding survey of damage caused to magnetic resonance (MR) devices by the Great East Japan Earthquake. In all, 458 responses (46.6%) were collected. In Miyagi Prefecture alone, 65 responses from 105 questionnaires were collected (response rate: 61.9%). The overall incidence of damage was 19.2%, with 57 facilities (12.4%) reporting that displacement of the magnets was the most common problem. The damage event rate in Miyagi Prefecture was 51.3%, with displacement of the magnet being highest at 17 cases (26.2%). There was a high rate of 13 cases (26.5%) of chiller and air conditioning failures and a rapid loss of He in ten MR scanners (20.4%). Notably, 87.8% of facilities in Miyagi Prefecture (24.5% of the total) were affected by earthquakes exceeding 6 on the Japanese Seismic Intensity Scale. Flood damage caused by the tsunami was also seen along the Sanriku coast to Sendai City (six MR scanners, 50% of the total), and was typical of the damage seen in Miyagi Prefecture.
authors.affiliation: Department of Radiology, Miyagi-Kosei Association Izumi Hospital.
authors.forename: Fumio
authors.initials: F
authors.lastname: Maeyatsu
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Abe
authors.forename: Makoto
authors.initials: M
authors.lastname: Hishinuma
authors.forename: Takeo
authors.initials: T
authors.lastname: Hikiti
authors.forename: Hajime
authors.initials: H
authors.lastname: Tanji
authors.forename: Shinya
authors.initials: S
authors.lastname: Seino
authors.forename: Kojiro
authors.initials: K
authors.lastname: Adachi
authors.forename: Yasunori
authors.initials: Y
authors.lastname: Musashi
authors.forename: Toshio
authors.initials: T
authors.lastname: Tuchihashi
authors.forename: Yosihio
authors.initials: Y
authors.lastname: Machida
authors.forename: Sachiko
authors.initials: S
authors.lastname: Yamaguchi-Sekino
authors.forename: Toshiharu
authors.initials: T
authors.lastname: Nakai
mesh_terms: D055866:Earthquakes / Q000706:statistics & numerical data*; D004868:Equipment Failure / Q000706:statistics & numerical data*; D004869:Equipment Safety; D007564:Japan; D008279:Magnetic Resonance Imaging / Q000295:instrumentation*; D011795:Surveys and Questionnaires; D057192:Tsunamis / Q000706:statistics & numerical data