Source: wikibot/photoacoustic-imaging
= Photoacoustic imaging
{wiki=Photoacoustic_imaging}
Photoacoustic imaging (PAI) is a hybrid imaging technique that combines optical and ultrasound imaging principles. The method relies on the photoacoustic effect, which occurs when a material absorbs light (usually from a pulsed laser) and subsequently emits acoustic waves (ultrasound) due to thermal expansion.