In vivo dual-scale photoacoustic surveillance and assessment of burn healing
2019
Accurate diagnoses of superficial and deep dermal burns are difficult to make even by experienced investigators due to slight differences in dermis damage. Many imaging technologies have been developed to improve the burn depth assessment. But these imaging tools have limitations in deep imaging or resolving ability. Photoacoustic imaging is a hybrid modality combining optical and ultrasound imaging that remains high resolution in deep imaging depth. In this work, we used dual-scale photoacoustic imaging to noninvasively diagnose burn injury and monitor the burn healing. Real-time PACT provided cross-sectional and volumetric images of the burn region. High-resolution PAM allowed for imaging of angiogenesis on the hyperemic ring. A long-term surveillance was also performed to assess the difference between the two damage degrees of burn injuries. Our proposed method suggests an effective tool to diagnose and monitor burn injury.
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