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Table 4 Comparison of PTV3DPET4DCT and PTV4DPETCT structures

From: Respiratory-gated (4D) contrast-enhanced FDG PET-CT for radiotherapy planning of lower oesophageal carcinoma: feasibility and impact on planning target volume

Patient DICE Se.Idx Inc.Idx CGD (mm) MDC (mm)
1 0.9 0.89 0.92 2.91 5.19
2 0.9 0.92 0.88 3.25 8.35
3 0.9 0.98 0.83 6.44 6.46
4 0.88 0.83 0.93 5.49 7.41
5 0.79 0.68 0.95 3.1 7.57
6 0.82 0.94 0.73 3.52 7.4
7 0.81 0.75 0.87 7.78 10.76
Median 0.88 0.89 0.88 3.52 7.41
  1. DICE Dice index, Se.Idx sensitivity index, Inc.Idx inclusiveness index, CGD centre of gravity distance, MDCmean distance to conformity, SD standard deviation