CT Protocols: (Brain, ENT, Spine, Vascular) - Department of Radiology
CT Protocols: (Brain, ENT, Spine, Vascular) - Department of Radiology CT Protocols: (Brain, ENT, Spine, Vascular) - Department of Radiology
6 Revised 7/22/09 (Gentry/Ranallo) Head: Helical Adult Non-Contrast CT 1 CT 2 CT 3 CT 4 & ER CT East & RP CT 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 0.6 0.4 0.4 0.7 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 Head Head kV 120 120 120 120 120 Smart mA/ Auto mA Range 200-660 130-440 200-660 190-620 130-440 Noise Index 2.8 2.8 2.8 2.8 2.8 (Manual mA) 530 350 530 500 340 Recon 1: DFOV 22 22 22 22 22 Recon Type Soft Soft Soft Soft Soft 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 Full Full Full Full Full Slice Thickness (mm) 2.5 2.5 2.5 2.5 2.5 Interval (mm) 1.25 1.25 1.25 1.25 1.25
7 Revised 7/22/09 (Gentry/Ranallo) Head: Helical Adult Contrast CT 1 CT 2 CT 3 CT 4 & ER CT East & RP CT 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 0.9 0.5 0.5 1.0 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 Head Head kV 100 100 100 100 100 Smart mA/ Auto mA Range 230-750 130-420 230-750 210-700 130-420 Noise Index 3.3 3.3 3.3 3.3 3.3 (Manual mA) 620 330 600 570 340 Recon 1: DFOV 22 22 22 22 22 Recon Type Soft Soft Soft Soft Soft WW/ WL 90/30 90/30 90/30 90/30 90/30 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 3500/350 3500/350 3500/350 3500/350 3500/350 Recon Option Full Full Full Full Full Slice Thickness (mm) 2.5 2.5 2.5 2.5 2.5 Interval (mm) 1.25 1.25 1.25 1.25 1.25
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6 Revised 7/22/09 (Gentry/Ranallo)<br />
Head: Helical<br />
Adult<br />
Non-Contrast<br />
<strong>CT</strong> 1 <strong>CT</strong> 2 <strong>CT</strong> 3 <strong>CT</strong> 4 & ER <strong>CT</strong> East & RP <strong>CT</strong><br />
Scanner GE LS Xtra GE LS 16 GE LS 16 Pro GE LS V<strong>CT</strong> 64 GE LS 8<br />
Scan Type Helical Helical Helical Helical Helical<br />
Rotation Time (sec) 0.5 0.6 0.4 0.4 0.7<br />
Detector Coverage (mm)<br />
Beam Collimation (mm)<br />
10 10 10 20 10<br />
Detector Rows 16 16 16 16 8<br />
Pitch 0.562 0.562 0.562 0.531 0.625<br />
Speed (mm/rot) 5.625 5.625 5.625 10.62 6.25<br />
Detector Configuration 16 x 0.625 16 x 0.625 16 x 0.625 64 x 0.625 8 x 1.25<br />
Slice Thickness (mm) 5 5 5 5 5<br />
Interval (mm) 2.5 2.5 2.5 2.5 2.5<br />
Scan FOV Head Head Head Head Head<br />
kV 120 120 120 120 120<br />
Smart mA/ Auto mA Range 200-660 130-440 200-660 190-620 130-440<br />
Noise Index 2.8 2.8 2.8 2.8 2.8<br />
(Manual mA) 530 350 530 500 340<br />
Recon 1:<br />
DFOV 22 22 22 22 22<br />
Recon Type S<strong>of</strong>t S<strong>of</strong>t S<strong>of</strong>t S<strong>of</strong>t S<strong>of</strong>t<br />
WW/ WL 80/25 80/25 80/25 80/25 80/25<br />
Recon Option Full Full Full Full Full<br />
Recon 2:<br />
DFOV 22 22 22 22 22<br />
Recon Type Bone Plus Bone Plus Bone Plus Bone Plus Bone Plus<br />
WW/ WL 3000/300 3000/300 3000/300 3000/300 3000/300<br />
Recon Option Full Full Full Full Full<br />
Slice Thickness (mm) 2.5 2.5 2.5 2.5 2.5<br />
Interval (mm) 1.25 1.25 1.25 1.25 1.25
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