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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59 Revised 7/22/09 (Gentry/Ranallo)<br />
Sinuses (Follow-up Adult <strong>ENT</strong> Sinus): (Protocol: # 2.7)<br />
Billing:<br />
Setup:<br />
DFOV:<br />
Contrast:<br />
Reformats:<br />
1. <strong>CT</strong> Sinus without only (never use this protocol when giving contrast)<br />
1. Patient Supine, AP and lateral scouts, no gantry angle<br />
2. Only use this protocol for <strong>ENT</strong> and allergy patients with multiple prior diagnostic<br />
sinus <strong>CT</strong> scans<br />
3. Patient Positioning: Tilt the patient’s head so that a line connecting the lateral<br />
canthus <strong>of</strong> the eye and the EAC is perpendicular to the <strong>CT</strong> tabletop (see below).<br />
4. Scan from the bottom <strong>of</strong> maxillary teeth to the top <strong>of</strong> the frontal sinuses (see below)<br />
Preferred 14 cm (Range 14-16 cm)<br />
1. Never give contrast with this protocol<br />
1. Do 2 mm x 2 mm 2D-reformations using both the standard 1.25 mm images AND the<br />
bone 0.625 mm images as shown below.
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