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Three-dimensional color Doppler scan volume with region of interest selected in a 57-year-old woman with invasive ductal carcinoma in left breast. Each section (right) represents an original image in the z-plane. Approximately 90 of these are stacked to form the overall 3D reconstructed volume. A yellow 3D surface delineating the volume for calculation of tumor vascularity is shown at left, along with vascularity in 3D space (blue).
