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Table 4 Results of the structural similarity index (SSIM) and peak signal-to-noise ratio (PSNR)

From: A cycle generative adversarial network for improving the quality of four-dimensional cone-beam computed tomography images

  SSIM PSNR (dB)
4D-CBCT 0.49 ± 0.07 42.3 ± 1.4
sCT 0.73 ± 0.04 50.5 ± 1.4
p value < 0.01 < 0.01
  1. These values are reported as the mean ± standard deviation for 10 patients. The p value was calculated using a two-tailed t test comparing the results of the 4D-CBCT and sCT images