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Table 1: Parameters for CT cervical, thoracic, and lumbar spine myelogram (Siemens dual-source, dual-energy CT models)
DECT Model Somatom Definition Flash Somatom Force
Description 128-Section dual-source, dual-energy CT 192-Section dual-source, dual-energy CT
kV(p) A: 100 B: Sn 140 A: 100 B: Sn 150
Quality reference mAs A: 230 B: 178 A: 260 B: 130
Scan FOV (mm) A: 500 B: 332 A: 500 B: 356
Rotation time (sec) 1.0 1.0
Pitch 0.9 0.9
Collimation (mm) 32 × 0.6 128 × .06

DECT Model	Somatom Definition Flash	Somatom Force
Description	128-Section dual-source, dual-energy CT	192-Section dual-source, dual-energy CT
kV(p)	A: 100 B: Sn 140	A: 100 B: Sn 150
Quality reference mAs	A: 230 B: 178	A: 260 B: 130
Scan FOV (mm)	A: 500 B: 332	A: 500 B: 356
Rotation time (sec)	1.0	1.0
Pitch	0.9	0.9
Collimation (mm)	32 × 0.6	128 × .06