Table 2 Volumes of primary tumor and largest suspect cervical lymph nodes in milliliters for 74 patients with head & neck squamous cell carcinoma of different applied methods
From: Approximation of head and neck cancer volumes in contrast enhanced CT
Mean | Std. deviation | ||
|---|---|---|---|
Volume primary tumor | Segmentation in diagnostic CT scans | 18.7 | 19.1 |
Cuboid | 34.4 | 41.4 | |
Ellipsoid | 18.0 | 21.7 | |
Segmentation in radiotherapy-planning CT scans1) | 24.6 | 27.5 | |
Volume largest suspect LN | Segmentation in diagnostic CT scans | 11.0 | 17.9 |
Cuboid | 18.5 | 33.4 | |
Ellipsoid | 9.7 | 17.5 | |
Segmentation in radiotherapy-planning CT scans1) | 13.8 | 27.7 |