Towards 3-D spot recovery in laser diode-based photoacoustic imaging

Photoacoustic (PA) imaging has shown a great potential in cancer detection, tissue characterization, and therapeutic applications. Compact, portable, cheap, and high frequency, but low-power, Laser Diode has been a new venue for PA imaging. Laser diode-based PA imaging can be a supplement for image guidance during prostate studies and nerve or cancer imaging procedure or used for the localization of a needle target. To accurately localize and/or image the spot, a small region of interested is illuminated, and US and PA signals are collected simultaneously. Point source or spot imaging using the conventional US transducer is needed for these image guidance procedures. Preliminary study for the laser spot recovery has been performed in [Moradi et al, SPIE, 2021] using 2-D clinical transducer, in this project, 1) 3-D spot recovery using T-shaped arrays of the prostate transrectal ultrasound transducer is investigated, 2) machine learning algorithms will be employed to increase signal-to-noise ratio of the signal recorded with the laser diodes, 3) multi-spectral PA spot recovery will also be discussed.

Faculty Supervisor:

Septimiu (Tim) Salcudean

Student:

Partner:

Eindhoven University of Technology

Discipline:

Engineering

Sector:

Education

University:

The University of British Columbia

Program: