Abstract #1631
Real-time 3D spiral MR thermometry
Samuel Fielden 1 , Xue Feng 1 , Wilson Miller 2 , Kim Butts Pauly 3 , and Craig Meyer 1,2
1
Biomedical Engineering, University of
Virginia, Charlottesville, Virginia, United States,
2
Radiology,
University of Virginia, Charlottesville, Virginia,
United States,
3
Radiology,
Stanford University, Palo Alto, California, United
States
For focused ultrasound procedures, the ability to
perform thermometry on the entire heated volume is
desirable in order to ensure focal spot location and to
monitor for off-focus, spurious heating. Here, we have
developed a rapid volumetric thermometry sequence based
on a stack-of-spirals gradient echo acquisition, with a
redundant-in/out method used to impart improved
off-resonance performance. This sequence was tested and
validated with a real-time reconstruction during focused
ultrasound sonication of a gelatin phantom.
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