OHSU neurosurgeon Ahmed Raslan, M.D., and his team on Wednesday, March 30, 2022, during patient Jean Henderson's surgery. (OHSU/Christine Torres Hicks)

OHSU neurosurgeon Ahmed Raslan, M.D., pinpoints the exact location for treatment on Wednesday, March 30, 2022. (OHSU/Christine Torres Hicks)

OHSU neurosurgeon Ahmed Raslan, M.D., and his team talk about the procedure for high-frequency ultrasound for patient Jean Henderson on Wednesday, March 30, 2022. (OHSU/Christine Torres Hicks)

Patient Jean Henderson has her hair shaved by RN Peg Torelli Wauters on Wednesday, March 30, 2022. (OHSU/Christine Torres Hicks)

OHSU is the only center in Oregon and recently became the first in the world to provide an enhanced version of high-frequency ultrasound technology to patients suffering from debilitating involuntary tremor. (OHSU/Christine Torres Hicks)

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)

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)