You are viewing the site in preview mode

Skip to main content

Advertisement

Table 4 Summary of quantitative measures derived across the 20 sample trial patient datasets

From: Automatic segmentation of male pelvic anatomy on computed tomography images: a comparison with multiple observers in the context of a multicentre clinical trial

  CTV BLADDER RECTUM
N 20 14 20
ViPlan (cm3) 42.9 (14.0) 132.9 (79.7) 83.3 (24.7)
VObs (cm3) 77.6 (35.3) 121.2 (51.1) 120.1 (71.8)
Δ V iPlan Obs (%)a 91.4 (87.4)b 2.4 (26.5) 48.8 (86.3)c
VObsiPlan (cm3) 31.6 (12.52) 97.9 (48.9) 60.0 (19.6)
DSC Obs iPlan 0.53 (0.16) 0.77 (0.06) 0.62 (0.14)
I Obs ObsiPlan 0.46 (0.22) 0.77 (0.10) 0.74 (0.17)
zSup,Obs − zSup,iPlan (cm) 0.3 (1.2) 0.75 (0.89) 0.19 (1.87)
zInf,Obs − zInf,iPlan (cm) −1.2 (1.0) 0.32 (1.13) 1.99 (1.02)
  1. a Relative to user-defined volume.
  2. b Viplan and VObs values significantly different on a 2-tailed paired t-test at p=0.002.
  3. c Viplan and VObs values significantly different on a 2-tailed paired t-test at p=0.03.