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Abstract #1545

A pilot study of MR–guided focused ultrasound thalamotomy for refractory essential tremor

jianfeng he1, yongqin xiong1, rui zong1, dekang zhang1, xin zhou2, longsheng pan1, and xin lou1
1Chinese PLA General Hospital, Beijing, China, 2Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, China

Essential tremor is the most common movement disorder and is often refractory to medical treatment, Deep brain stimulation in the thalamus has proved the efficiency for these patients. However, this treatment has risks associated with an open neurosurgical procedure. MR-guided focused ultrasound has been developed as a non-invasive means of generating precisely placed focal lesions. We examined its application to the management of refractory essential tremor. Satisfactory results were found that the mean reduction in tremor score of the treated hand was 86.7% at 1 month and 72.5% at 3 months, what’s more,no adverse events lasted beyond 3 months.

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