Patrick Bollgrn1, Dario Mager1, Michael Bock2, Jan G. Korvink1, 3
1Department of Microsystems Engineering, University of Freiburg - IMTEK, Freiburg, Germany; 2Department of Radiology, University Hospital Freiburg, Freiburg, Germany; 3Freiburg Institute for Advanced Studies - FRIAS, University of Freiburg, Freiburg, Germany
In this work, a flexible magnetic flux guide which consists of a series of inductively coupled electric resonators on an elastic carrier structure is used to guide the magnetic flux created during signal reception in a magnetic resonance system and overcome unwanted geometric constraints on applications such as interventional MRI. An RF signal travels through the waveguide by inductive coupling between the individual resonators, thus transmitting the magnetic flux over a considerable distance even when the structure is bent. Magnetic resonance imaging was successfully performed, which indicates that such waveguides could become a valuable alternative to conventional receive coil arrangements.