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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

ATTERNED INTERFERENCE RADIATION FORCE FOR TRANSCRANIAL NEUROMODULATIO

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Author(s):
Kim, Young Hun [1, 2] ; Kang, Ki Chang [1, 2] ; Kim, Jeong Nyeon [1] ; Pai, Chi Nan [1, 3] ; Zhang, Yichi [1] ; Ghanouni, Pejman [4] ; Park, Kwan Kyu [1, 2] ; Firouzi, Kamyar [1] ; Khuri-Yakub, Burtus T. [1]
Total Authors: 9
Affiliation:
[1] Stanford Univ, Dept Elect Engn, EL Ginzton Lab, Stanford, CA 94305 - USA
[2] Hanyang Univ, Mech Convergence Engn, Seoul - South Korea
[3] Univ Sao Paulo, Dept Mechatron Engn, Polytech Sch, Sao Paulo - Brazil
[4] Stanford Univ, Dept Radiol, Stanford, CA 94305 - USA
Total Affiliations: 4
Document type: Journal article
Source: ULTRASOUND IN MEDICINE AND BIOLOGY; v. 48, n. 3, p. 497-511, MAR 2022.
Web of Science Citations: 0
Abstract

Compared with the conventional method of transcranial focused ultrasound stimulation using a single transducer or a focused beam, the compression and tensile forces are generated from the high-pressure gradient of a standing wave that can generate increased stimulation. We experimentally verified a neuromodulation system using patterned interference radiation force (PIRF) and propose a method for obtaining the magnitude of the radiation force, which is considered the main factor influencing ultrasound neuromodulation. The radiation forces generated using a single focused transducer and a standing wave created via two focused transducers were compared using simulations. Radiation force was calculated based on the relationship between the acoustic pressure, radiation force and time-averaged second-order pressure obtained using an acoustic streaming simulation. The presence of the radiation force was verified by measuring the time-averaged second-order pressure generated due to the radiation force, by using a glass tube. (E-mail: kwankyu@hanyang.ac.kr) (c) 2021 World Federation for Ultrasound in Medicine \& Biology. All rights reserved. (AU)

FAPESP's process: 18/00710-1 - Capacitive micromachined ultrasound transducer for tomography
Grantee:Chi Nan Pai
Support Opportunities: Scholarships abroad - Research