Extended Data Fig. 1: Experimental setup.
From: Induction of a torpor-like hypothermic and hypometabolic state in rodents by ultrasound
(A) Illustration of the wearable ultrasound transducer. The transducer was attached to a baseplate that was glued on the mouse’s head. Photos of the ultrasound probe (US probe) and the baseplate. A photo of the baseplate insert is also provided. The baseplate insert with a hole in the center was used during baseplate installation to guide the positioning of the baseplate. The insert was removed after the baseplate installation. (B) The experimental setup for measuring the acoustic pressure fields generated by the ultrasound probe using a hydrophone in a degassed water tank. Ex vivo mouse skull with the baseplate was placed in front of the ultrasound probe. (C) The measured acoustic pressure fields in the axial focal plane and lateral focal plane in the presence of the mouse skull. The focal region size measured by the full-width-at-half-maximum was 3.8 mm in the axial direction and 0.8 mm in the lateral direction.
