Toward fiber-based high-frequency 3D ultrasound imaging

Sheng-Wen Huang; Shai Ashkenazi; Yang Hou; Russell S. Witte; Matthew O'Donnell

doi:10.1117/12.701305

13 February 2007 Toward fiber-based high-frequency 3D ultrasound imaging

Sheng-Wen Huang, Shai Ashkenazi, Yang Hou, Russell S. Witte, Matthew O'Donnell

Proceedings Volume 6437, Photons Plus Ultrasound: Imaging and Sensing 2007: The Eighth Conference on Biomedical Thermoacoustics, Optoacoustics, and Acousto-optics; 643728 (2007) https://doi.org/10.1117/12.701305
Event: SPIE BiOS, 2007, San Jose, California, United States

Abstract

We present a fiber-based optical detection system for high-frequency 3D ultrasound and photoacoustic imaging. Optically probing the surface of a thin polymer Fabry-Perot etalon defines the acoustic array geometry and element size. We have previously demonstrated wide bandwidth signal detection (>40 MHz) and element size on the order of 15 &mgr;m. By integrating an etalon into a photoacoustic imaging system, high-resolution 3D images were obtained. However, the previous system is limited for clinical applications because the etalon is rigidly attached to a free-space optical scanning system. To move etalon detector technology toward a practical clinical device, we designed a remote-probe system based on a fiber bundle. A fiber bundle, composed of 160,000 individual light guides of 8-&mgr;m diameter, delivers the optical probe to the etalon. Light coupled into a single guide creates an active element on the etalon surface. We successfully measured the ultrasound signals from 10 MHz and 50 MHz ultrasound transducers using a laser tunable around 1550 nm. With further progress on reducing the size of the etalon, it will be possible to build a practical device for in vivo high-frequency 3D ultrasound and photoacoustic imaging, especially for intravascular and endoscopic applications.

Citation Download Citation

Sheng-Wen Huang, Shai Ashkenazi, Yang Hou, Russell S. Witte, and Matthew O'Donnell "Toward fiber-based high-frequency 3D ultrasound imaging", Proc. SPIE 6437, Photons Plus Ultrasound: Imaging and Sensing 2007: The Eighth Conference on Biomedical Thermoacoustics, Optoacoustics, and Acousto-optics, 643728 (13 February 2007); https://doi.org/10.1117/12.701305

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