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(a, b) VR reconstruction of renal CTA with a contrast dose of 600 mgI kg−1 at the energy level of 70 keV in the dual-energy spectral CT imaging, and the corresponding cross-sectional image. (c–f) VR reconstruction of the same patient’s renal CTA with a contrast dose of 300 mgI kg−1 at the energy levels of 40 keV and 70 keV, respectively, and the corresponding cross-sectional images. CTA, CT angiography; VR, volume rendering.
