Table 1.

Exposure parameters of the CBCT and MSCT scanners and conventional X-ray devices

	Siemens	NewTom 5G			Planmed	Shimadzu
	Somatom	CBCT			Planmed	FH-21 HR
	Definition AS+	Hi Res	Standard	Standard	Verity	AP + LAT
	MSCT	“12 × 8”	“15 × 12”	“18 × 16”	CBCT	Radiography
Potential (kV)	120	110	110	110	90	57
Tube current (mA)‡	54	11	1,5	0,6	8	-
Exposure time (s)	1.0	5,4	3,6	3,6	6	-
Q (mAs)	54	59	5,3	2,3	48	16
Slice thickness (mm)	0.6	-	-	-	-	-
Pitch (mm)	0.5	-	-	-	-	-
Voxel H (mm)	-	0.15	0.3	0.3	0.2	-
Voxel L (mm)	-	0.15	0.3	0.3	0.2	-
Voxel W (mm)	-	0.15	0.3	0.3	0.2	-
Scan angle	360°	360°	360°	360°	210°	-
Frame number	-	360	360	360	300	-
Scan FOV (mm)†	130 × 160	120 × 80	150 × 120	180 × 160	130 × 160	130 × 160

†For MSCTs and CBCT: diameter × length, for conventional X-ray width × height.

‡For NewTom 5G CBCT: mA is automatically adjusted using the “SafeBeam™” acquisition option.