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

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

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12 Revised 7/22/09 (Gentry/Ranallo)<br />

Head: Axial<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 Axial Axial Axial Axial Axial<br />

Rotation Time (sec) 0.7 0.9 0.6 0.6 0.9<br />

Detector Coverage (mm)<br />

Beam Collimation (mm)<br />

10 10 10 10 10<br />

Detector Rows 16 16 16 16 8<br />

Number <strong>of</strong> Images per<br />

Rotation<br />

2i 2i 2i 2i 2i<br />

Detector Configuration 16 x 0.625 16 x 0.625 16 x 0.625 16 x 0.625 8 x 1.25<br />

Slice Thickness (mm) 5 5 5 5 5<br />

Scan FOV Head Head Head Head Head<br />

kV 120 120 120 120 120<br />

mA 670 420 630 630 420<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 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 />

Slice Thickness (mm) 2.5 2.5 2.5 2.5 2.5<br />

Head: Axial<br />

Adult<br />

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 Axial Axial Axial Axial Axial<br />

Rotation Time (sec) 1.0 0.9 0.8 0.8 0.9<br />

Detector Coverage (mm)<br />

Beam Collimation (mm)<br />

10 10 10 10 10<br />

Detector Rows 16 16 16 16 8<br />

Number <strong>of</strong> Images per<br />

Rotation<br />

2i 2i 2i 2i 2i<br />

Detector Configuration 16 x 0.625 16 x 0.625 16 x 0.625 16 x 0.625 8 x 1.25<br />

Slice Thickness (mm) 5 5 5 5 5<br />

Scan FOV Head Head Head Head Head<br />

kV 100 120 100 100 120<br />

mA 670 400 670 670 400<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 90/30 90/30 90/30 90/30 90/30<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 3500/350 3500/350 3500/350 3500/350 3500/350<br />

Slice Thickness (mm) 2.5 2.5 2.5 2.5 2.5

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