Correction of Proton Resonance Frequency Shift MR-Thermometry Errors Caused by Heat-Induced Magnetic Susceptibility Changes during High Intensity Focused Ultrasound Ablations in Tissues Containing Fat

摘要

PurposeIn this study, we aim to demonstrate the sensitivity of proton resonance frequency shift (PRFS) -based thermometry to heat-induced magnetic susceptibility changes and to present and evaluate a model-based correction procedure.