Pulsed laser diode based photoacoustic tomography system using multiple acoustic reflector based single element ultrasound transducers

Sandeep Kumar Kalva; Paul Kumar Upputuri; Rhonnie Austria Dienzo; Manojit Pramanik

doi:10.1117/12.2508281

27 February 2019 Pulsed laser diode based photoacoustic tomography system using multiple acoustic reflector based single element ultrasound transducers

Sandeep Kumar Kalva, Paul Kumar Upputuri, Rhonnie Austria Dienzo, Manojit Pramanik

Author Affiliations +

Proceedings Volume 10878, Photons Plus Ultrasound: Imaging and Sensing 2019; 1087831 (2019) https://doi.org/10.1117/12.2508281
Event: SPIE BiOS, 2019, San Francisco, California, United States

Abstract

Conventional photoacoustic tomography (PAT) systems use bulky, expensive Q-switched Nd:YAG lasers which limits its usage in clinics. The low repetition rate of these lasers makes them not suitable for real-time imaging as well. Compact pulsed laser diodes (PLD) are being currently used for PAT systems due to their high repetition rates and compact in size. These lasers can be mounted inside the PAT circular scanning geometry making the PAT system more portable. Using acoustic reflector based single-element ultrasound transducer (SUTR), the scanning radius can be reduced thereby making the PAT system more compact. In this work, we present a portable, high frame rate, more compact second generation PLD-PAT system using eight SUTRs in circular scanning geometry. This system provides high frame rate of ~1 Hz. We demonstrate the performance of this system using phantom imaging studies.

Citation Download Citation

Sandeep Kumar Kalva, Paul Kumar Upputuri, Rhonnie Austria Dienzo, and Manojit Pramanik "Pulsed laser diode based photoacoustic tomography system using multiple acoustic reflector based single element ultrasound transducers", Proc. SPIE 10878, Photons Plus Ultrasound: Imaging and Sensing 2019, 1087831 (27 February 2019); https://doi.org/10.1117/12.2508281

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