Towards Real-Time In Vivo Volumetric MR Thermometry
Samuel Fielden1, Matthew Geeslin2, Xue Feng1, Wilson Miller2, Kim Butts Pauly3, and Craig Meyer1,2
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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