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Table 4 Dice results after CBCT-based setup correction (115 CT/CBCT pairs of 10 patients). Before registration, air was replaced by soft tissue in images.

From: Development of CBCT-based prostate setup correction strategies and impact of rectal distension

  Without RR Manual-contour RR Global RR Bony RR Local RR
  (reference)    1 mm 3 mm 5 mm 8 mm 10 mm 12 mm 15 mm 20 mm
Dice median 0.731 0.864 0.797 0.785 0.776 0.794 0.810 0.814 0.813 0.811 0.806 0.811
Dice SD 0.105 0.035 0.062 0.070 0.113 0.123 0.074 0.045 0.052 0.046 0.052 0.055
Failed registrations - - 6 8 28 26 20 3 3 1 1 1