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

54 Revised 7/22/09 (Gentry/Ranallo)
Sinuses (Diagnostic)
Adult
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) 0.5 0.5 0.5 0.5 0.5
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) 1.25 1.25 1.25 1.25 1.25
Interval (mm) 0.75 0.75 0.75 0.625 0.75
Scan FOV Head Head Head Head Head
kV 120 120 120 120 120
Smart mA/ Auto mA Range 110-400 90-320 90-320 90-300 100-360
Noise Index 7.2 7.2 7.2 7.2 7.2
(Manual mA) 310 250 250 240 290
Recon 1:
DFOV 14 14 14 14 14
Recon Type Standard Standard Standard Standard Standard
WW/ WL 400/30 400/30 400/30 400/30 400/30
Recon Option Plus Plus Plus Full Plus
Recon Option
Recon 2:
IQ Enhance
DFOV 14 14 14 14 14
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
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 1.25
Interval (mm) 0.625 0.625 0.625 0.625 0.75