Development of low-cost photoacoustic imaging systems using very low-energy pulsed laser diodes

J Biomed Opt. 2017 Jul 1;22(7):75001. doi: 10.1117/1.JBO.22.7.075001.

Abstract

With the growing application of photoacoustic imaging (PAI) in medical fields, there is a need to make them more compact, portable, and affordable. Therefore, we designed very low-cost PAI systems by replacing the expensive and sophisticated laser with a very low-energy laser diode. We implemented photoacoustic (PA) microscopy, both reflection and transmission modes, as well as PA computed tomography systems. The images obtained from tissue-mimicking phantoms and biological samples determine the feasibility of using a very low-energy laser diode in these configurations.

MeSH terms

  • Lasers, Semiconductor*
  • Microscopy
  • Phantoms, Imaging
  • Photoacoustic Techniques / economics
  • Photoacoustic Techniques / instrumentation*