April 9, 2026

@michaelokun

Flexible ultrasound: is it a wearable path to deep brain therapy? Flexible ultrasound uses a soft, skull-conforming device to deliver precise sound waves deep into the brain w/o surgery. Huo and colleagues describe in a new paper in NPJ Acoustics how a flexible ultrasound array may overcome one of the biggest barriers in brain stimulation, the skull itself. Key points: - Flexible ultrasound arrays conform to the skull, improving energy delivery and reducing distortion when compared to rigid systems. - The design improved focal precision by nearly 30% and increased peak pressure by over 40% versus traditional hemispherical arrays. - The system enabled wider steering across brain regions while maintaining focus, opening access to subcortical targets like the basal ganglia which are important to Parkinson and beyond. My take: Is this an early blueprint for a wearable, personalized brain stimulation platform. If we can safely and precisely reach deep brain circuits w/o implants, this could reshape how we think about treating Parkinson’s disease and many neuropsychiatric conditions. There is a long road ahead and it is unclear what direction this will take. Here are 5 points that resonated w/ me: 1- Flexible devices may allow individualized targeting based on each person’s skull and brain anatomy. 2- Non-invasive stimulation that reaches deep brain regions could complement or even compete w/ DBS in select cases though unclear folks will want to wear the device in its current form. 3- Better steering means we may treat multiple brain regions or symptoms w/ one platform. 4- Reducing skull-related distortion is a major step toward reliable and reproducible neuromodulation. 5- The future may blend ultrasound w/ imaging, AI and biomarkers to deliver precision therapy at home or in clinic. https://www.nature.com/articles/s44384-026-00046-9 #michaelokun #fixelinstitute #parkinson