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Table 2 Quantitative analysis of image sets (conventional images and VME images 40–120 KeV) according to SNR

From: Improved detectability of hypoattenuating focal pancreatic lesions by dual-layer computed tomography using virtual monoenergetic images

  SNR pConventional p40 KeV
Conventional 2.83 ± 3.21   
40 KeV 11.28 ± 9.40 < 0.001*  
50 KeV 7.76 ± 6.68 < 0.001* < 0.001*
60 KeV 5.55 ± 4.93 < 0.001* < 0.001*
70 KeV 4.15 ± 3.99 < 0.001* < 0.001*
80 KeV 3.28 ± 3.42 < 0.001* < 0.001*
90 KeV 2.71 ± 3.17 0.284 < 0.001*
100 KeV 2.32 ± 3.0 < 0.001* < 0.001*
110 KeV 2.04 ± 2.89 < 0.001* < 0.001*
120 KeV 1.89 ± 2.91 < 0.001* < 0.001*
Frp < 0.001*   
  1. * statistically significant