Abstract #4046
Pre-Clinical Head-Mounted MRgFUS Device for Large Animals
Robb Merrill 1 , Henrik Odeen 1 , Emilee Minalga 1 , J. Rock Hadley 1 , Dennis Parker 1 , and Allison Payne 1
1
Radiology, University of Utah, Salt Lake
City, UT, United States
This work describes an MRgFUS system for conducting
ultrasound procedures on large animals on a Siemens 3T
MRI scanner. A craniotomy was performed on a pig to
provide unobstructed passage of ultrasound during
treatment. A seven-channel phased array RF coil was used
for ultrasound guidance and MR thermometry. A multi-axis
adjustment mechanism suspended the ultrasound transducer
above the prone animal, and allowed for a treatment
envelope covering the majority of the brain volume. Two
brain locations were targeted and heating was
successfully observed, verifying the ultrasound focus
position. The system can be easily adapted to other
animals and anatomy.
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