OHSU first to use new target for focused ultrasound treatment of Parkinson's

Focused ultrasound treatment for essential tremor now FDA-approved as a primary treatment for Parkinson’s; benefits OHSU patients in Oregon, across the country

By Erik Robinson October 28, 2025 Portland, Oregon

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Carolina Palacios de Ramirez

Carolina Palacios de Ramirez, left, with her daughter Carolina Sandoval, is able to move better and smile again following a procedure at OHSU on Aug. 27 that marked the first clinical use of incisionless surgery for the treatment of Parkinson's disease in the United States. (Courtesy of Carolina Sandoval)

Enjoying life and family

Carolina Palacios de Ramirez is enjoying life again following a procedure at OHSU on Aug. 27 that marked the first clinical use of incisionless surgery for the treatment of Parkinson's disease in the United States. (Courtesy of Carolina Sandoval)

Enjoying life and family

Surgery with no cutting

Ahmed Raslan, M.D., looks over a high-frequency ultrasound image. Neurosurgeons at Oregon Health & Science University examine real-time magnetic resonance imaging during a case involving the use of high-frequency focused ultrasound. (OHSU/Christine Torres Hicks)

Ahmed Raslan, M.D. (OHSU)

Ahmed Raslan, M.D., professor of neurological surgery in the OHSU School of Medicine.

Delaram Safarpour, M.D. (OHSU)

Daniel Cleary, M.D. (OHSU)