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SUMMARY:
We report on a 75-year-old woman with a history of right MCA aneurysm clipping and medically refractive right-hand tremor. We successfully performed focused ultrasound thalamotomy of the left ventral intermediate nucleus under MR imaging-guidance at 3T. A thorough pretreatment evaluation of MR thermometry was critical to ensure that adequate precision could be achieved at the intended target. The tremor showed a 75% decrease at 24 hours postprocedure and a 50% decrease at a 3-month follow-up. There were no immediate adverse events.
ABBREVIATIONS:
- MRgFUS
- MR-guided focused ultrasound
- MRT
- MR thermometry
- VIM
- ventral intermediate nucleus
- © 2024 by American Journal of Neuroradiology