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An analytical approach to optimize radial synthetic aperture focusing for volumetric transrectal ultrasound imaging

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posted on 25.06.2021, 21:13 by Hyunwoo Song, Jeeun KangJeeun Kang, Emad M. Boctor
In this paper, we present a novel analytical approach to optimize radial synthetic aperture focusing framework for high-definite and high-sensitive volumetric transrectal ultrasound imaging (TRUS-rSAF). A closed-form analytical description of beam profile defines spatial resolution and grating lobe positions in the TRUS-rSAF imaging of radial plane and validated by a heuristic testing of the critical parameters. Given the theoretical foundation, we optimize the TRUS-rSAF system configuration to balance the spatial and temporal resolution, grating lobe artifacts, and signal-to-noise ratio (SNR) in radial plane with a design criterion to outperform a clinical volumetric TRUS (TRUS-REF) imaging. The results showed that the proposed analytical optimization provides significant improvements of imaging quality in radial plane even over an in-plane microconvex TRUS imaging. Therefore, our analytical approach provides a optimal framework for effective TRUS-rSAF imaging in clinics.

Funding

Early-Stage Prostate Cancer Screening Using Contrast-Enhanced Molecular Photoacoustic Imaging

Congressionally Directed Medical Research Programs

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Enhanced imaging and treatment of aggressive subtypes of prostate cancer

National Cancer Institute

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SCH: CAREER: Co-Robotic Ultrasound Sensing in Bioengineering

Directorate for Computer & Information Science & Engineering

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History

Email Address of Submitting Author

kangj@jhu.edu

ORCID of Submitting Author

0000-0001-6678-2744

Submitting Author's Institution

Johns Hopkins University

Submitting Author's Country

United States of America