Photoacoustics (PA)

What Is Photoacoustic Imaging?

Photoacoustics (or PA) explained

Photoacoustic imaging allows the delivery of light energy that is absorbed by tissues causing a thermoelastic expansion. This expansion then generates ultrasound waves that are detected by the transducer and produce images of optical absorption contrast within tissues. See infographic.

Image in vivo tissue down to 2 cm in depth in real time and with a resolution down to 45 μm!

The Photoacoustic Effect:


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Better understand complex disease mechanisms! 

  1. Real-time co-registration of molecular events with anatomy
  2. High resolution oxygen saturation maps for hypoxia and tissue ischemia
  3. Multi-target detection and quantification from one live scan

Learn more about our latest multi-modal imaging system combining high frequency ultrasound and photoacoustics using the Vevo LAZR-X .

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