Volumetric synthetic aperture imaging with a piezoelectric 2D row-column probe

Hamed Bouzari; Mathias Engholm; Thomas Lehrmann Christiansen; Christopher Beers; Anders Lei; Matthias Bo Stuart; Svetoslav Ivanov Nikolov; Erik Vilain Thomsen; Jørgen Arendt Jensen

doi:10.1117/12.2216074

1 April 2016 Volumetric synthetic aperture imaging with a piezoelectric 2D row-column probe

Hamed Bouzari, Mathias Engholm, Thomas Lehrmann Christiansen, Christopher Beers, Anders Lei, Matthias Bo Stuart, Svetoslav Ivanov Nikolov, Erik Vilain Thomsen, Jørgen Arendt Jensen

Author Affiliations +

Proceedings Volume 9790, Medical Imaging 2016: Ultrasonic Imaging and Tomography; 97900Y (2016) https://doi.org/10.1117/12.2216074
Event: SPIE Medical Imaging, 2016, San Diego, California, United States

Abstract

The synthetic aperture (SA) technique can be used for achieving real-time volumetric ultrasound imaging using 2-D row-column addressed transducers. This paper investigates SA volumetric imaging performance of an in-house prototyped 3 MHz λ/2-pitch 62+62 element piezoelectric 2-D row-column addressed transducer array. Utilizing single element transmit events, a volume rate of 90 Hz down to 14 cm deep is achieved. Data are obtained using the experimental ultrasound scanner SARUS with a 70 MHz sampling frequency and beamformed using a delay-and-sum (DAS) approach. A signal-to-noise ratio of up to 32 dB is measured on the beamformed images of a tissue mimicking phantom with attenuation of 0.5 dB cm^-1 MHz^-1, from the surface of the probe to the penetration depth of 300λ. Measured lateral resolution as Full-Width-at-Half-Maximum (FWHM) is between 4λ and 10λ for 18% to 65% of the penetration depth from the surface of the probe. The averaged contrast is 13 dB for the same range. The imaging performance assessment results may represent a reference guide for possible applications of such an array in different medical fields.

Citation Download Citation

Hamed Bouzari, Mathias Engholm, Thomas Lehrmann Christiansen, Christopher Beers, Anders Lei, Matthias Bo Stuart, Svetoslav Ivanov Nikolov, Erik Vilain Thomsen, and Jørgen Arendt Jensen "Volumetric synthetic aperture imaging with a piezoelectric 2D row-column probe", Proc. SPIE 9790, Medical Imaging 2016: Ultrasonic Imaging and Tomography, 97900Y (1 April 2016); https://doi.org/10.1117/12.2216074

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

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.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available