Table 1.

Departmental planning CT and CBCT scan acquisition protocols

Planning CT scan acquisition protocols
Pelvis	120 kVp, 35 mAs, 650 mm FOV, pitch = 0.75, 2 mm slice width
Head and neck	120 kVp, 35 mAs, 650 mm FOV, pitch = 1.2, 3 mm slice width
CBCT scan acquisition protocols
Pelvis	125 kVp, 80 mA, scan mode: half‐fan, image matrix: 512 × 512, filter: sharp, slice thickness: 2 mm
Head and neck	100 kVp, 20 mA, scan mode: Full‐fan, image matrix: 512 × 512, filter: sharp, slice thickness: 2 mm