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Table 2 BD results after CBCT-based setup correction (115 CT/CBCT pairs of 10 patients)

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
BD* median (mm) 2.86 1.48 2.18 2.17 2.20 1.95 1.84 1.84 2.01 2.01 2.04 2.10
BD* SD (mm) 1.18 0.32 0.70 0.71 1.89 1.28 0.87 0.58 0.75 0.81 0.72 0.84
  1. *BD stands for Bidirectional Distance. It was calculated for each contour comparison by averaging the BLD values over the reference contour.