Abstract #3616

Towards Real-Time In Vivo Volumetric MR Thermometry

Samuel Fielden¹, Matthew Geeslin², Xue Feng¹, Wilson Miller², Kim Butts Pauly³, and Craig Meyer^1,2

¹Biomedical Engineering, University of Virginia, Charlottesville, VA, United States, ²Radiology & Medical Imaging, University of Virginia, Charlottesville, VA, United States, ³Radiology, Stanford University, Palo Alto, CA, United States

A rapid volumetric MR thermometry sequence, using a stack-of-spirals acquisition, was implemented on a real-time platform in order to support animal model experiments. The performance of the sequence, as measured by the maximum and mean recorded temperature as well as the sequence accuracy, was assessed against a clinically used 2DFT sequence in vivo. The use of efficient spiral trajectories supports rapid generation of volumetric thermometry maps and allows the visualization of the entire insonication as well as correlation with post-ablation imaging of lesion size and location.

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