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Abstract #4989

Applicability of Magnetic Resonance Fingerprinting for Proton Resonance Frequency Shift based Temperature Monitoring of Microwave Ablation

Moritz Gutt1, Josef Joaquin Löning Caballero2, Dominik Horstmann2, Frank Wacker2, Bennet Hensen2, and Marcel Gutberlet2
1Computational Health Informatics, Leibniz University Hannover, Hannover, Germany, 2Diagnostic and Interventional Radiology, Hannover Medical School, Hannover, Germany

Synopsis

Keywords: Thermometry, MR FingerprintingMRI offers the unique ability of measuring the temperature inside of the patient during minimally invasive tumor ablation. In this proof-of-concept approach MR Fingerprinting was used in order to get an accurate thermometry with potential for real-time application. The method was validated by performing a microwave ablation in a bioprotein phantom. The temperature accuracy was 1.54 °C ± 0.85 °C and the dice score between the calculated and the ground truth denaturation zone was 90.02 %. The mean standard deviation of the non-heated area was 0.19 °C.

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Keywords