Abstract #1731

MR-ARFI & SWI to Detect Calcifications in the Brain in MRgHIFU Treatments

Rachel Rinat Bitton¹, Elena Kaye^1,2, Kim Butts Pauly¹

¹Radiology, Stanford University, Stanford, CA, United States; ²Electrical Engineering, Stanford University, Stanford, CA, United States

Calcifications have the potential to interfere with an MRgHIFU treatment in the brain. Although they may be identified in pre-treatment CT scans, they are not registered to the MR images or the in vivo HIFU focal spot. In this study we present the use MR-ARFI imaging to detect a calcification in ex-vivo swine brain by creating a displacement weighted map of an ROI larger than the focal spot. This technique is proposed as an adjunct to SWI in order to visualize calcifications prior to an MRgHIFU brain treatment.