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Table 3 Comparison of PTV4DCT 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 0.91 0.89 1.73 5.23
2 0.8 0.74 0.87 9.25 12.8
3 0.89 0.85 0.94 5.19 11.45
4 0.85 0.79 0.93 1.64 10.03
5 0.69 0.65 0.74 27.29 22.56
6 0.89 0.92 0.87 2.9 5.94
7 0.82 0.77 0.88 9.33 10.68
Median 0.85 0.79 0.88 5.19 10.68
  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