Use of PROPELLOR for MR Thermometry
Arabe O, Samulski T, Raidy T, MacFall J
Duke University Medical Center
It is possible to use the temperature sensitivity of the tissue water proton resonant frequency shift (PRFS) or the apparent diffusion coefficient (ADC) to measure temperature change. While the PRFS method has good temporal and spatial resolution, it suffers from sensitivity to motion and drift. The ADC method is less sensitive to motion and drift but suffers from low resolution and image distortion due to the use of diffusion-weighted (DW) single shot echo-planar imaging (EPI) methods. In this study we evaluate the extent to which multi-shot DW PROPELLOR imaging can improve the ADC temperature change measurement method.