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Table 1 Gross tumor volumes delineated by 3 observers on CT and CT-MR in supraglottic laryngeal carcinoma

From: GTV delineation in supraglottic laryngeal carcinoma: interobserver agreement of CT versus CT-MR delineation

Patient (no.) Tumor stage Mean GTV (cm 3 ) CIgen COV
   CT CT-MR CT CT-MR CT CT-MR
8 T1 1.2 1.3 0.52 0.54 0.23 0.11
6 T2 1.5 1.9 0.29 0.32 0.41 0.66
12 T3 1.6 1.5 0.62 0.67 0.18 0.03
16 T3 1.9 2.8 0.43 0.17 0.38 0.13
20 T2 2.3 2.8 0.61 0.41 0.14 0.38
14 T2 2.9 3.2 0.73 0.68 0.07 0.05
9 T2 5.0 5.1 0.65 0.61 0.17 0.25
4 T2 5.3 5.2 0.62 0.50 0.19 0.41
1 T3 5.5 6.7 0.76 0.66 0.04 0.06
19 T2 5.5 6.6 0.63 0.54 0.04 0.06
5 T2 5.7 6.7 0.49 0.49 0.32 0.30
11 T2 6.8 6.5 0.68 0.69 0.18 0.14
13 T2 7.0 6.8 0.77 0.80 0.10 0.03
7 T2 7.1 7.3 0.75 0.73 0.04 0.12
2 T3 7.9 9.6 0.70 0.59 0.09 0.27
18 T3 7.9 8.1 0.59 0.57 0.10 0.08
17 T3 11.1 11.8 0.67 0.62 0.05 0.15
10 T4 12.8 22.1 0.49 0.50 0.36 0.35
15 T4 14.7 20.6 0.69 0.68 0.09 0.16
3 T3 27.0 29.1 0.60 0.66 0.26 0.11
  1. Tumor stage, mean delineated tumor volumes (GTV) in cm3 of 3 observers ranked by mean GTV. COV (coefficient of variation) and CIgen (conformity index general) for GTV on CT and CT-MR.