[fastball]

Ultrasound can penetrate the skull, esp if through a thin part of the skull (like the temporal bone, which going from the graphic on the website is exactly where they are targeting these waves) and with targeted frequencies.

You are misinformed.

[tokyovigilante]

I am a consultant radiologist. Tell that to my 6-month old infants who require MRI with GA because their fontanelles are closed. Transtemporal can give you a poorly resolved image of the 3rd ventricle at a pinch.

“Targeted frequencies” - righto.