Abstract #3604

Evaluation of common proton resonance frequency shift based MR Thermometry methods in the pancreas

Cyril J Ferrer¹, Clemens Bos¹, Marijn van Stralen¹, Baudoin Denis de Senneville², Chrit T.W Moonen¹, and Lambertus W Bartels¹

¹University Medical Center Utrecht, Utrecht, Netherlands, ²Mathematical Institute of Bordeaux, Talence, France

MR-guided High Intensity Focused Ultrasound has recently been suggested to provide non-invasive alternative treatment options for pancreatic cancer patients. To successfully apply PRFS MR Thermometry in the pancreas motion correction techniques have to be applied. For other moving organs, several solutions have already been proposed to this end: gating, multibaseline and referenceless. However, due to specific properties of the pancreas, there was still a need to evaluate the performance of these methods in this organ. Our results show that all the evaluated techniques improved thermometry in the pancreas to a level that is sufficient to monitor thermal ablation.

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