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
80 Revised 7/22/09 (Gentry/Ranallo) Neck: Routine Pediatric Infant (0 – 3 yr) – Angled Axials Non-Contrast or 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 Axial Axial Axial Axial Axial Rotation Time (sec) 0.6 0.8 0.5 0.5 0.8 Detector Coverage (mm) Beam Collimation (mm) 10 10 10 10 10 Detector Rows 16 16 16 16 8 Number of Images per Rotation 4i 4i 4i 4i 4i Detector Configuration 16 x 0.625 16 x 0.625 16 x 0.625 16 x 0.625 8 x 1.25 Slice Thickness (mm) 2.5 2.5 2.5 2.5 2.5 Scan FOV Head Head Head Small Head Head kV 80 80 80 80 80 mA 640 400 620 620 400 Recon 1: DFOV 22 22 22 22 22 Recon Type Standard Standard Standard Standard Standard WW/ WL 300/35 300/35 300/35 300/35 300/35 Recon 2: DFOV 22 22 22 22 22 Recon Type Bone Plus Bone Plus Bone Plus Bone Plus Bone Plus WW/ WL 2500/250 2500/250 2500/250 2500/250 2500/250 Slice Thickness (mm) 1.25 1.25 1.25 1.25 1.25
81 Revised 7/22/09 (Gentry/Ranallo) Neck: (Salivary Gland) (Protocol – Adult: # 3.3 – Pediatric: # 13.3) Billing: 1. CT Neck (without and with) 2. Contrast Setup: 1. Patient Supine (AP and lateral scouts from sella to mid chest) 2. Make sure the patient removes any dentures or removable teeth 3. No gantry angle Examination: Part 1: Limited Non-contrast CT of Neck - Scan from hyoid bone to EAC - Add angled views if there are lots of dental fillings - No 2D Reconstructions - Use same scan factors as in routine neck CT Part 2: Do a routine Neck CT With Contrast Protocol - Be sure to do angled views if there are lots of dental fillings
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80 Revised 7/22/09 (Gentry/Ranallo)<br />
Neck: Routine<br />
Pediatric Infant (0 – 3 yr) – Angled Axials<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 />
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) 0.6 0.8 0.5 0.5 0.8<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 />
4i 4i 4i 4i 4i<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) 2.5 2.5 2.5 2.5 2.5<br />
Scan FOV Head Head Head Small Head Head<br />
kV 80 80 80 80 80<br />
mA 640 400 620 620 400<br />
Recon 1:<br />
DFOV 22 22 22 22 22<br />
Recon Type Standard Standard Standard Standard Standard<br />
WW/ WL 300/35 300/35 300/35 300/35 300/35<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 2500/250 2500/250 2500/250 2500/250 2500/250<br />
Slice Thickness (mm) 1.25 1.25 1.25 1.25 1.25
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