Abstract #4843
The effect of anchoring of MR scanners to prevent earthquake hazards an analysis of the damages to the 602 MR scanners in Great East Japan Earthquake
Sachiko Yamaguchi-Sekino 1 , Yoshio Machida 2 , Toshio Tsuchihashi 3 , Haruo Isoda 4 , Takeshi Noguchi 5 , and Toshiharu Nakai 6
1
National Insitiute of Occupational Safety
and Health, Japan, Kawasaki, Kanagawa, Japan,
2
Tohoku
University, Graduate School of Medicine, Miyagi, Japan,
3
Department
of Radiology, Nippon Medical School Hospital, Tokyo,
Japan,
4
Nagoya
University, Graduate School of Medicine, Aichi, Japan,
5
National
Institute for Material Science, Ibaraki, Japan,
6
NeuroImaging
& Informatics, National Center for Geriatrics and
Gerontology, Aichi, Japan
In order to evaluate the potential risk to MR scanners
and consider patient safety under large earthquakes, we
have performed a survey study to investigate damages in
MR scanners caused by Great East Japan Earthquake. It
was confirmed that the extent of damage was
significantly different between seismic scale (SS) 5 and
SS over 6. Logistic regression analysis suggested that
anchoring for MR facilities reduced the occurrence of
quake-induced damages in MR scanners. And significant
decrease in machine damages was observed in the group of
base isolation structure for medical facilities compared
with earthquake-proof structures.
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