CT Protocols: (Brain, ENT, Spine, Vascular) - Department of Radiology

46 Revised 7/22/09 (Gentry/Ranallo)
3D CT: (Craniosynostosis, Congenital Facial Anomaly)
Pediatric Child (3 – 6 yr)
Scanner GE LS Xtra GE LS 16 GE LS 16 Pro GE LS VCT 64 GE LS 8
Scan Type Helical Helical Helical Helical Helical
Rotation Time (sec) 0.6 0.7 0.5 0.5 0.8
Detector Coverage (mm)
Beam Collimation (mm)
10 10 10 20 10
Detector Rows 16 16 16 16 8
Pitch 0.562 0.562 0.562 0.531 0.625
Speed (mm/rot) 5.625 5.625 5.625 10.62 6.25
Detector Configuration 16 x 0.625 16 x 0.625 16 x 0.625 64 x 0.625 8 x 1.25
Slice Thickness (mm) 5 5 5 5 5
Interval (mm) 2.5 2.5 2.5 2.5 2.5
Scan FOV Head Head Head Small Head Head
kV 100 100 100 100 100
Smart mA/ Auto mA Range 140-560 100-390 130-540 120-510 100-380
Noise Index 2.6 2.6 2.6 2.6 2.6
(Manual mA) 420 290 400 380 290
Recon 1:
DFOV 22 22 22 22 22
Recon Type Standard Standard Standard Standard Standard
WW/ WL 80/25 80/25 80/25 80/25 80/25
Recon Option Full Full Full Full Full
Recon 2:
DFOV 22 22 22 22 22
Recon Type Bone Plus Bone Plus Bone Plus Bone Plus Bone Plus
WW/ WL 3000/300 3000/300 3000/300 3000/300 3000/300
Recon Option Plus Plus Plus Full Plus
Recon Option
IQ Enhance
Slice Thickness (mm) 1.25 1.25 1.25 1.25 1.25
Interval (mm) 0.75 0.75 0.75 0.625 0.75
Recon 3:
DFOV 22 22 22 22
Recon Type Bone Plus Bone Plus Bone Plus Bone Plus
WW/ WL 3000/300 3000/300 3000/300 3000/300
Recon Option Plus Plus Plus Full
Recon Option
Non-Contrast
CT 1 CT 2 CT 3 CT 4 & ER CT East & RP CT
IQ Enhance
Slice Thickness (mm) 0.625 0.625 0.625 0.625
Interval (mm) 0.375 0.375 0.375 0.312