Orbits (CT) PRINT

Last updated: 2/20/2021.
What changed: N/A.
History: Trauma, mass, infection, foreign body, cellulitis, proptosis
ORBITS
LocalizerFrontal and lateral
AngulationFace parallel to floor
Scan typehelical
kVp110-120
Target CTDIvol (mGy)<25
Max CTDIvol (mGy)30
Max scan time30 sec
Detector/SliceDetector minimum
Pitch0.9-1.4:1
DFOV15-18
Coverage
Axinferior orbital margin to supraorbital ridge
Cornose to brainstem
Sagear to ear
Contrast (if ordered)
Agent 80 mL (350/ 370 concentrate ) or 100 mL (300 concentrate)
Delay30-45 sec
RateInject @ 2-3 mL / sec OR hand inject @ 1-1.5 mL / sec
Send to PACS
Ax, Cor, Sag: 2 mm Standard
Ax, Cor, Sag: 1 mm Bone
If ordered use a 30-45 second delay. Inject contrast @ 2-3 mL / sec. Use 100 mL (300 concentration) or 75-80 mL (350 or 370 concentration).


Sample Field of View


 


 


Axial







Coronal









Sagittal