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Table 3 Quantitative analysis of image sets (conventional polyenergetic images and VME images 40–120 KeV) according to image noise

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

  Noise (SD) pConventional p40 KeV
Conventional 12.99 ± 4.72   
40 KeV 10.47 ± 3.68 < 0.001*  
50 KeV 10.09 ± 3.49 < 0.001* < 0.001*
60 KeV 9.93 ± 3.39 < 0.001* < 0.001*
70 KeV 9.93 ± 3.27 < 0.001* < 0.001*
80 KeV 9.84 ± 3.28 < 0.001* < 0.001*
90 KeV 9.82 ± 3.28 < 0.001* < 0.001*
100 KeV 9.78 ± 3.27 < 0.001* < 0.001*
110 KeV 9.79 ± 3.24 < 0.001* < 0.001*
120 KeV 9.77 ± 3.27 < 0.001* < 0.001*
Frp < 0.001*   
  1. * statistically significant