Referenceless PRF thermometry with multi-echo processing
Rieke V, Kinsey A, Sommer G, Diederich C, Nau W, Butts Pauly K
Referenceless proton resonance frequency (PRF) shift thermometry is a motion insensitive method to monitor thermal ablation. A new three echo pulse sequence is proposed with varying k-space coverage for each echo in order to allow reconstruction of both a low resolution temperature image and a high resolution anatomical image, without a decrease in temporal resolution. The method is demonstrated in phantoms and during in vivo canine prostate ablation.