MPI Safety in the View of MRI Safety Standards

Author

Schmale, Ingo ; Gleich, Bernhard ; Rahmer, Jurgen ; Bontus, Claas ; Schmidt, Joachim ; Borgert, Jorn

Author_Institution

Innovative Technol., Philips Technol. GmbH, Hamburg, Germany

Volume

51

Issue

2

fYear

2015

fDate

Feb. 2015

Firstpage

1

Lastpage

4

Abstract

In assessing the safety aspect of future clinical magnetic particle imaging (MPI), this novel imaging technique can refer to expertise that is cumulated in the IEC standard for magnetic resonance imaging (MRI) safety. Both imaging techniques employ strong dynamic magnetic fields and therefore have to take caution to refrain from physiological effects such as peripheral nerve stimulation (PNS) or excessive tissue heating. This paper starts with an outline of the differences between MPI and MRI. Then, the basics of PNS and tissue heating are reviewed and applied to the specific MPI case. Finally, sequences for MPI are presented that will allow rapid MPI imaging at 150 kHz while being safe for the patient.

Keywords

IEC standards; biological tissues; magnetic particles; magnetic resonance imaging; neurophysiology; safety; IEC standard; MPI safety; MRI safety standards; clinical magnetic particle imaging; dynamic magnetic fields; excessive tissue heating; frequency 150 kHz; magnetic resonance imaging safety; peripheral nerve stimulation; physiological effects; Coils; Generators; IEC standards; Magnetic resonance imaging; Safety; Torso; Magnetic particle imaging (MPI); magnetic stimulation; peripheral nerve stimulation (PNS); specific absorption rate (SAR);

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2014.2322940

Filename

7067542