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Table 3 Volumes (cc) identified by CT and PET in every single case.

From: FDG-PET/CT imaging for staging and radiotherapy treatment planning of head and neck carcinoma

Patients Subsites CT-GTV PET-GTV PET/CT-GTV
1 Nasopharynx 17.7 30.3 36.5
2 Oral Cavity 65.9 49.0 78.7
3 Oral Cavity 16.1 22.2 25.1
4 Oropharyx 52.5 34.1 60.2
5 Hypopharynx 5.4 1.7 5.4
6 Hypopharynx 45.5 46.3 64.2
7 Hypopharynx 8.7 12.1 13.5
8 Oropharynx 35.3 20.1 36.1
9 Nasopharynx 6.3 3.5 6.4
10 Paranasal sinus 17.4 8.0 17.8
11 Oropharynx 2.1 4.5 5.3
12 Larynx 9.8 1.7 9.8
13 Nasopharynx 37.0 57.8 60.3
14 Oropharynx 6.0 2.6 6.2
15 Oropharynx 28.9 11.2 29.4
16 Oropharynx 6.5 17.3 19.8
17 Hypopharynx 13.4 4.7 13.9
18 Hypopharynx 1.3 4.0 5.0
19 Nasopharynx 17.8 15.2 20.3
20 Paranasal Sinus 40.8 34.7 61.8
21 Hypopharynx 7.1 8.9 11.9
22 Larynx 19.5 6.5 19.5