MR Temperature Measurements of Activities Outside the Magnet Using Image Registration and a Fixation Device

Michael Bock¹, Axel Joachim Krafft¹, Florian Maier¹, Hans H. Paessler²

During sports activities such as skiing temperature changes of up to 10 K have been measured invasively. In this work we propose the use of MR temperature measurements in the knee where the thermal stimulation is performed outside the magnet. With a temperature-sensitive 3D FLASH sequence proton resonance frequency data are acquired before and after stimulation, and image co-registration is achieved with both a passive fixation device and an alignment post-processing algorithm to calculate phase difference maps.