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. 2023 May 25;5(5):789–803. doi: 10.1038/s42255-023-00804-z

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© The Author(s) 2023

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Extended Data Fig. 1 — (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.