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Table 1 Results of contrast, homogeneity, and SNR analyses

From: Reconstruction of the treatment area by use of sinogram in helical tomotherapy

Reconstruction Contrast Homogeneity SNR @ A SNR @ B SNR @ C SNR @ D
Full FOV 6.17 0.99-1.02 19.61 2.98 16.97 19.91
Masking only 1.79 0.83-1.15 18.13 16.28 9.33 55.50
Full corrections 1.89 0.91-1.06 20.47 16.70 10.53 44.44
  1. The contrast was evaluated by the ratio of the mean value of regions A, C, and D to that of region B in Figure 3. The homogeneity was evaluated by the min-max values of the mean value in the regions A, C, and D.