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  • Imaging intact human organs...
    Walsh, C L; Tafforeau, P; Wagner, W L; Jafree, D J; Bellier, A; Werlein, C; Kühnel, M P; Boller, E; Walker-Samuel, S; Robertus, J L; Long, D A; Jacob, J; Marussi, S; Brown, E; Holroyd, N; Jonigk, D D; Ackermann, M; Lee, P D

    Nature methods, 12/2021, Letnik: 18, Številka: 12
    Journal Article

    Imaging intact human organs from the organ to the cellular scale in three dimensions is a goal of biomedical imaging. To meet this challenge, we developed hierarchical phase-contrast tomography (HiP-CT), an X-ray phase propagation technique using the European Synchrotron Radiation Facility (ESRF)'s Extremely Brilliant Source (EBS). The spatial coherence of the ESRF-EBS combined with our beamline equipment, sample preparation and scanning developments enabled us to perform non-destructive, three-dimensional (3D) scans with hierarchically increasing resolution at any location in whole human organs. We applied HiP-CT to image five intact human organ types: brain, lung, heart, kidney and spleen. HiP-CT provided a structural overview of each whole organ followed by multiple higher-resolution volumes of interest, capturing organotypic functional units and certain individual specialized cells within intact human organs. We demonstrate the potential applications of HiP-CT through quantification and morphometry of glomeruli in an intact human kidney and identification of regional changes in the tissue architecture in a lung from a deceased donor with coronavirus disease 2019 (COVID-19).