Roger Luechinger1, Volkert A. Zeijlemaker2, B Mengiardi3, Peter Boesiger1
1Institute for Biomedical Engineering, University and ETH Zurich, Zurich, Switzerland; 2Medtronic Bakken Research Center, Maastricht, Netherlands; 3Imamed, Liestal, Switzerland
In open MR system with a main magnetic field orthogonal to the feet-head axis of the patient, it could be assumed that RF heating on extended implants like pacemaker leads may be strongly reduced compared with a conventional close bore systems. However, measurements shows that also on these systems high temperature increases could be found in some configuration. The position of the lead within body coil may have the smaller impact than the position of the lead within the phantom.