TY  - JOUR
A1  - Martin, Conrad
A1  - Frauenrath, Tobias
A1  - Özerdem, Celal
A1  - Renz, Wolfgang
A1  - Niendorf, Thoralf
T1  - Development and evaluation of a small and mobile Magneto Alert Sensor (MALSE) to support safety requirements for magnetic resonance imaging
JF  - European Radiology
N2  - Objective
The purpose of this study is to (i) design a small and mobile Magnetic field ALert SEnsor (MALSE), (ii) to carefully evaluate its sensors to their consistency of activation/deactivation and sensitivity to magnetic fields, and (iii) to demonstrate the applicability of MALSE in 1.5 T, 3.0 T and 7.0 T MR fringe field environments.

Methods
MALSE comprises a set of reed sensors, which activate in response to their exposure to a magnetic field. The activation/deactivation of reed sensors was examined by moving them in/out of the fringe field generated by 7TMR.

Results
The consistency with which individual reed sensors would activate at the same field strength was found to be 100% for the setup used. All of the reed switches investigated required a substantial drop in ambient magnetic field strength before they deactivated.

Conclusions
MALSE is a simple concept for alerting MRI staff to a ferromagnetic object being brought into fringe magnetic fields which exceeds MALSEs activation magnetic field. MALSE can easily be attached to ferromagnetic objects within the vicinity of a scanner, thus creating a barrier for hazardous situations induced by ferromagnetic parts which should not enter the vicinity of an MR-system to occur.
KW  - MRI
KW  - MR safety
KW  - Magneto alert sensor
KW  - High field MRI
KW  - Uktrahigh field MRI
Y1  - 2011
U6  - https://doi.org/10.1007/s00330-011-2153-z
SN  - 1432-1084
VL  - 21
SP  - 2187
EP  - 2192
PB  - Springer
CY  - Berlin, Heidelberg
ER  - 
TY  - JOUR
A1  - Schiffer, Stefan
A1  - Ferrein, Alexander
A1  - Lakemeyer, Gerhard
T1  - Reasoning with Qualitative Positional Information for Domestic Domains in the Situation Calculus
JF  - Journal of Intelligent & Robotic Systems
Y1  - 2011
SN  - 0921-0296
VL  - 63
IS  - 2
SP  - 273
EP  - 300
PB  - Springer
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Damm, Sebastian
A1  - Ritz, Thomas
A1  - Strauch, Jakob
ED  - Höpfner, Hagen
T1  - Muster und Cloud Computing als Plattformstrategie für mobile Unternehmenssoftware
T2  - Mobile und ubiquitäre Informationssysteme : MMS 2011 ; proceedings der 6. Konferenz, 28. Februar 2011 in Kaiserslautern, Deutschland. - (GI-Edition lecture notes in informatics ; 185)
Y1  - 2011
SN  - 978-3-88579-279-6
SP  - 91
EP  - 104
PB  - Ges. für Informatik
CY  - Bonn
ER  - 
TY  - JOUR
A1  - Fuchs, Britta
A1  - Ritz, Thomas
T1  - Absatzkanäle kaum verknüpft
JF  - IT-Mittelstand : IT-Business im Mittelstand
Y1  - 2011
VL  - 2011
IS  - 9
SP  - 16
PB  - Medienhaus-Verlag
CY  - Bergisch-Gladbach
ER  -