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Abstract #0199

Referenceless PRF thermometry with multi-echo processing

Rieke V, Kinsey A, Sommer G, Diederich C, Nau W, Butts Pauly K
Stanford University

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.