13 August 2015 Static laser speckle contrast analysis for noninvasive burn diagnosis using a camera-phone imager
Author Affiliations +
Abstract
Laser speckle contrast analysis (LASCA) is an established optical technique for accurate widefield visualization of relative blood perfusion when no or minimal scattering from static tissue elements is present, as demonstrated, for example, in LASCA imaging of the exposed cortex. However, when LASCA is applied to diagnosis of burn wounds, light is backscattered from both moving blood and static burn scatterers, and thus the spatial speckle contrast includes both perfusion and nonperfusion components and cannot be straightforwardly associated to blood flow. We extract from speckle contrast images of burn wounds the nonperfusion (static) component and discover that it conveys useful information on the ratio of static-to-dynamic scattering composition of the wound, enabling identification of burns of different depth in a porcine model
Udi Willenz, Sigal Ragol, Itay Remer, Yaron Shoham, Sivan Hazan, Igor Sinelnikov, Vladimir Dronov, Lior Rosenberg, Alberto Bilenca, "Static laser speckle contrast analysis for noninvasive burn diagnosis using a camera-phone imager," Journal of Biomedical Optics 20(8), 086009 (13 August 2015). https://doi.org/10.1117/1.JBO.20.8.086009 . Submission:
JOURNAL ARTICLE
9 PAGES


SHARE
Back to Top