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

Table 6 Positional metric analysis; there were no statistically significant differences (Friedman Test) between the 5 metrics comparing PTV structures between 3D PET-CT to 4D CT, 4D PET-CT to 4D CT and 3D PET-CT to 4D PET-CT

DICE Dice index, Se.Idx sensitivity index, Inc.Idx inclusiveness index, CGD centre of gravity distance, MDC mean distance to conformity, PTV planning target volume

ISSN: 1471-2407