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Insights into Imaging
Fig. 4 | Insights into Imaging

Fig. 4

From: Utilisation of virtual non-contrast images and virtual mono-energetic images acquired from dual-layer spectral CT for renal cell carcinoma: image quality and radiation dose

Fig. 4

Mean attenuation, image noise and SNR (signal-to-noise ratio) of kidney tumours and renal arteries on corticomedullary phase images and nephrographic phase VMIs (virtual mono-energetic images) from 40 to 100 keV. From 40 to 100 keV, the mean attenuation, image noise and SNR decreased gradually. C-CT means corticomedullary phase images. *p > 0.05

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