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
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Adult Head: (Axial Mode) (Protocol # 1.3)<br />
11 Revised 7/22/09 (Gentry/Ranallo)<br />
Billing: 1. <strong>CT</strong> Head without, or with, or without and with<br />
2. Contrast if used<br />
Setup: 1. Supine, AP and lateral scouts<br />
2. Helical mode should be used routinely `for adult head <strong>CT</strong> scans. Only use axial<br />
mode when you cannot move the patient’s head into proper position (trauma,<br />
cervical collar, rigid neck). This mode can also be used in unstable patients in the<br />
emergency department when the <strong>CT</strong> scan time must be expedited.<br />
3. Patient Positioning: Using the lateral scout image, angle the gantry so that it is<br />
parallel to a line connecting the infraorbital rim with the opisthion (see below).<br />
4. Start scans at the bottom <strong>of</strong> C1 and scan through the top <strong>of</strong> the head<br />
DFOV: Preferred 20 cm (Range 18-22)<br />
Contrast: 1. 150 ml <strong>of</strong> 240 mg/dl non-ionic contrast @ 0.6 ml/sec (4.2 minutes)<br />
2. Begin scanning as soon as contrast injection is finished<br />
Other Info: