Color-Changing Reflection Hologram for Quality Assurance of Therapeutic Ultrasound Systems.

ABSTRACT: The acoustic output of clinical therapeutic ultrasound equipment requires regular quality assurance (QA) testing to ensure the safety and efficacy of the treatment and that any potentially harmful deviations from the expected output power density are detected as soon as possible. A hologram, consisting of a reflection grating fabricated in an acrylate photopolymer film, has been developed to produce an immediate, visible, and permanent change in the color of the reconstructed hologram from red to green in response to incident ultrasound energy. The influence of the therapeutic ultrasound insonation parameters (exposure time, ultrasound power density, and proximity to the point of maximum acoustic pressure) on the hologram's response has been investigated for two types of therapeutic ultras

SUBMITTER: Mikulchyk T 

PROVIDER: S-EPMC10401507 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature