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Abstract #4904

A Fast Method to Estimate SAR Distribution from Temperature Images Highly Affected by Noise

Giuseppe Carluccio 1 , Florian Knoll 1 , Cem Murat Deniz 1 , Leeor Alon 1 , and Christopher Michael Collins 1

1 Bernard and Irene Schwartz Center for Biomedical Imaging, New York University School of Medicine, New York, New York, United States

Even though temperature increase has a direct relationship to risk, local 10g average SAR is still the quantity most used to assess safety with reference to existing guidelines. MR thermometry allows measurements of temperature distribution through a cross-section of the sample. Inverting a method to estimate temperature from SAR, we have proposed a method to estimate SAR from temperature maps which is highly insensitive to noise, which often strongly affects temperature maps acquired with MR thermometry.

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