Table 4.
Volume agreement between gross tumor volume (GTV) obtained from computed tomography (GTV-CT), magnetic resonance (GTV-MRI), positron emission tomography (GTV-PETvis) and automatic fused positron emission tomography/magnetic resonance (GTV-PET/MRI) in patients with squamous cell carcinoma of the tongue (1–10)
| No. of pts | mHD [mm] between: | DCS for: | ||||
|---|---|---|---|---|---|---|
| GTV-CT and GTV-MRI | GTV-CT and GTV-PETvis | GTV-CT and GTV PET/MRI | GTV-CT and GTV-MRI | GTV-CT and GTV-PETvis | GTV-CT and GTV PET/MRI | |
| 1 | 14 | 15 | 21 | 0.74 | 0.70 | 0.5 |
| 2 | 19 | 19 | 20.3 | 0.68 | 0.78 | 0.64 |
| 3 | 18 | 21 | 20.6 | 0.71 | 0.79 | 0.82 |
| 4 | 17 | 20 | 25 | 0.8 | 0.79 | 0.6 |
| 5 | 18 | 8 | 28 | 0.85 | 0.73 | 0.4 |
| 6 | 10 | 8 | 10.4 | 0.73 | 0.68 | 0.75 |
| 7 | 12 | 8 | 12.2 | 0.66 | 0.73 | 0.67 |
| 8 | 12 | 12 | 20 | 0.67 | 0.57 | 0.3 |
| 9 | 4 | 5 | 4.1 | 0.77 | 0.72 | 0.77 |
| 10 | 8 | 8 | 0 | 0.75 | 0.66 | 0 |
| Average | 13.2 | 12.4 | 16.2 | 0.74 | 0.72 | 0.55 |
pts patients, PETvis visual method of GTV delineation, DSC Dice similarity coefficient, mHD modified Hausdorff distance