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Photoacoustic Imaging Detects Early Symptoms of Preeclampsia

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Photoacoustic imaging could be a viable tool for detecting preeclampsia before it becomes a life-threatening condition for mother and baby, according to a Tulane University study. Preeclampsia — maternal hypertension and proteinuria — is caused by placental ischemia resulting from reduced uteroplacental perfusion. Spectral photoacoustic imaging distinguishes between oxygenated and deoxygenated perfused tissues by estimating the wavelength-dependent absorption of the tissue. Researchers from the Tulane School of Medicine and the Tulane School of Public Health and...Read full article

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    Published: March 2019
    Glossary
    photoacoustic imaging
    Abbreviated PAI. An imaging modality with a hybrid technique based on the acoustic detection of optical absorption from endogenous chromophores or exogenous contrast agents. Light is absorbed by the chromophores and converted into transient heating, and through thermoelastic expansion there is a resulting emission of ultrasonic waves. In tissue, ultrasound scatters less than light, therefore PAI generates high-resolution images in the diffusive and optical ballistic regimes compared to purely...
    Research & TechnologyeducationAmericasImagingphotoacoustic imagingspectral photoacoustic imagingLight SourcesmedicalpreeclampsiaBiophotonicsbioengineeringbiomedical engineeringBioScan

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