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Table 5 Comparison of PTV4DCT and PTV3DPET4DCT 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 0.87 0.9 0.85 4.02 5.89
2 0.77 0.7 0.86 11.23 15.44
3 0.85 0.76 0.98 4.97 10.11
4 0.9 0.88 0.92 7.03 9.15
5 0.65 0.72 0.59 28.17 22.94
6 0.85 0.78 0.94 4.19 6.8
7 0.9 0.91 0.89 1.61 5.04
Median 0.85 0.78 0.89 4.97 9.15
  1. DICE Dice index, Se.Idx sensitivity index, Inc.Idx inclusiveness index, CGD centre of gravity distance, MDC mean distance to conformity, SD standard deviation