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Three-dimensional Rendering and Analysis of Immunolabeled, Clarified Human Placental Villous Vascular Networks
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Multiparametric QUS Analysis for Placental Tissue Characterization.

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    Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
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    Quantitative ultrasound (QUS) can characterize placental tissue. This study established baseline QUS parameters, including shear wave speed and attenuation coefficient estimate, for normal placentas, aiding future disorder detection.

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    Area of Science:

    • Biomedical Ultrasound
    • Medical Imaging
    • Obstetrics and Gynecology

    Background:

    • Multiparametric Quantitative Ultrasound (QUS) shows potential for placental tissue characterization.
    • Accurate placental assessment is crucial for detecting and managing pregnancy complications.
    • Establishing normative QUS values is essential for identifying pathological conditions.

    Purpose of the Study:

    • To simultaneously extract and quantify two distinct QUS parameters from placental tissue.
    • To establish baseline values for shear wave speed and attenuation coefficient estimate in normal post-delivery placentas.
    • To provide foundational data for future research into QUS-based detection of placental disorders.

    Main Methods:

    • Ultrasound radio frequency data acquisition from 59 clinically normal post-delivery placentas.
    • Simultaneous extraction of attenuation coefficient estimate (ACE) and shear wave speed using shear wave vibroelastography (SWAVE).
    • Quantitative analysis of the acquired QUS parameters.

    Main Results:

    • Mean shear wave speed in normal placentas was measured at 1.74 ± 0.13 m/s.
    • Mean attenuation coefficient estimate (ACE) was found to be 0.57 ± 0.48 dB/cm-MHz.
    • These results provide the first established baseline QUS values for normal placental tissue.

    Conclusions:

    • Multiparametric QUS, combining ACE and shear wave speed, is feasible for placental assessment.
    • The established baseline QUS values offer a reference point for identifying placental abnormalities.
    • This study lays the groundwork for developing novel ultrasound-based diagnostic tools for placental disorders.