Settings used for the different scanning acquisitions, performed with the Philips Allura Clarity (hybrid operating room cone beam CT system), Medtronic O-arm O2 (O-arm cone beam CT system), and Philips Veradius Unity mobile C-arm
| hCBCT | oCBCT | C-arm | |||||||||||
| Dose level | LD | SD | SD | HD | HD | ND | ND | LD | ND | MD | |||
| FOV (cm) (label) | 27 (S) | 37 (M) | 48 (L) | 20 (M) | 20 (M) | 20 (M) | 40 (L) | 20 (M) | 13 (S) | 18 (M) | 27 (L) | 27 (L) | 27 (M) |
| Patient size | M | M | L | M | M | ||||||||
| Tube voltage (kV) | 123 | 122 | 120 | 120 | 120 | 120 | 125 | 120 | 79 | 72 | 69 | 67 | 68 |
| Tube current time (mAs) | 319 | 271 | 191 | 80 | 160 | 200 | 240 | 240 | |||||
| Tube current (mA) | 3.35 | 3.3 | 1.76 | 2.82 | 4.75 | ||||||||
| Pulse/s | 8 | 8 | 8 | 8 | 8 | ||||||||
| Gantry size (cm) | 85 | 70 | 73 | ||||||||||
| Detector size (cm×cm) | 40×30 | 40×30 | 26.2×26.2 | ||||||||||
| Detector pixel matrix | 2480×1920 | 2038×1536 | 1560×1420 | ||||||||||
| 3D scan rotation (degrees) | 180 | 360 | |||||||||||
| Copper beam filtration (mm) | 0.4 | 0.1 | 0.1 | ||||||||||
Bold text indicates the manufacturer defined standard clinical protocol.
FOV, field of view; hCBCT, hybrid cone beam CT; HD, high dose; L, large; LD, low dose; M, medium; MD, medium dose; ND, normal dose; oCBCT, O-arm cone beam CT; S, small; SD, standard dose.