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Cross-sectional measurements of area, perimeter (circumference), long-axis (Dmax) and short- axis (Dmin) for patient with (a) native annulus (b) valve-in-valve and (c) conduit. Note for valve-in-valve case (b), the internal diameter of the existing bioprosthesis is measured. For the conduit case (c), the outer-outer dimension of the conduit, including calcifications, have been measured.
