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
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104 Revised 7/22/09 (Gentry/Ranallo)<br />
Patient Age: Choose the <strong>CT</strong> scan factors on the scanner for the proper age range <strong>of</strong> the patient<br />
1. Child: (3 – 6 years)<br />
2. Infant: (0 – 3 years)<br />
Smart Prep<br />
Prep Over<br />
mA<br />
Monitoring Delay<br />
(sec)<br />
Monitoring<br />
ISD (sec)<br />
Enhancement<br />
Threshold<br />
Aortic Arch 40 10.0 3.0 50<br />
Diagnostic Delay (sec)<br />
LS V<strong>CT</strong>64: 10.0<br />
LS Xtra, LS 16 & 16 Pro: 8.0<br />
LS 8: 5.0<br />
Lumbar <strong>Spine</strong>: Routine<br />
Pediatric Child (3 – 6 yr)<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) 0.6 0.8 0.5 0.5 0.9<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) 1.25 1.25 1.25 1.25 1.25<br />
Interval (mm) 0.75 0.75 0.75 0.625 0.75<br />
Scan FOV Large Large Large Medium Body Large<br />
kV 100 100 100 100 100<br />
Smart mA/ Auto mA Range 170-750 100-420 160-750 150-700 100-420<br />
Noise Index 12.8 12.8 12.8 12.8 12.8<br />
(Manual mA) 310 190 300 280 190<br />
Recon 1:<br />
DFOV 18 18 18 18 18<br />
Recon Type Standard Standard Standard Standard Standard<br />
WW/ WL 450/60 450/60 450/60 450/60 450/60<br />
Recon Option Plus Plus Plus Full Plus<br />
Recon Option<br />
Recon 2:<br />
IQ Enhance<br />
DFOV 18 18 18 18<br />
Recon Type Bone Plus Bone Plus Bone Plus Bone Plus<br />
WW/ WL 3000/300 3000/300 3000/300 3000/300<br />
Recon Option Plus Plus Plus Full<br />
Recon Option<br />
IQ Enhance<br />
Slice Thickness (mm) 0.625 0.625 0.625 0.625<br />
Interval (mm) 0.375 0.375 0.375 0.312<br />
Recon 3:<br />
DFOV 18 18 18 18 18<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 Plus Plus Plus Full Plus<br />
Recon Option<br />
Non-Contrast or 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 />
IQ Enhance<br />
Slice Thickness (mm) 1.25 1.25 1.25 1.25 1.25<br />
Interval (mm) 0.75 0.75 0.75 0.625 0.75
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