Severe energy dissipation and waveform aberration in ultrasonic wave propagation due to the human skull remain major
challenges to achieving good focus in high intensity focused ultrasound (HIFU) brain therapy and high-resolution
thermoacoustic tomography (TAT) of the human brain. With the inclusion of the skull insertion loss, we numerically
simulated the ultrasonic wave propagation using the pseudospectral time domain (PSTD) algorithm for TAT setup. We
then applied the redatuming scheme through downward and upward continuation originated in seismic signal processing
to eliminate the diffraction caused by the irregularity of the skull and to recover the insertion loss due mainly to the diploes layer of the skull. This approach, after further validation, is aimed to recover wave energy dissipation and waveform aberration in ultrasonic measurements applied to both trans-skull imaging (ultrasound propagates outward) and therapy (ultrasound propagates inward).
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.