NAME | INDICATION | DESCRIPTION |
Routine Head CT |
Trauma |
< 4 yrs old: Conventional (non-spiral) 5 mm x 5 mm axials through entire skull. Film brain, subdural, and bone windows. No IV contrast. > 4 yrs old: Conventional (non-spiral) 5 mm x 5 mm axials through posterior fossa & 10 mm x 10 mm axials to skull vertex. Film brain, subdural, and bone windows. No IV contrast. |
Head CT w/ & w/o Contrast |
Abscess
Contraindication for MRI such as aneurysm clips or pacermaker |
pre-contrast: Conventional (non-spiral) 5 mm x 5 mm axials through posterior fossa & 10 mm x 10 mm axials to skull vertex. Film brain, subdural, and bone windows. contrast: Inject 100 cc Oxilan 300 @ 2 cc/sec, beginning scan after all contrast is injected. post-contrast: Conventional (non-spiral) 5 mm x 5 mm axials through posterior fossa & 10 mm x 10 mm axials to skull vertex. Film brain and subdural windows. |
Maxillofacial CT |
Trauma |
neck not clear: Spiral 3 mm x 1.5 mm axials, filming every other (ie, contiguous) images. Coronal + sagittal 2D reconstructions. Film soft tissue and bone windows. No IV contrast. neck clear: 3 mm x 3 mm coronals through face. Add 3 mm x 3 mm axials if needed for delineation of fractures. Film soft tissue and bone windows. No IV contrast. |
Sinus CT |
Sinusitis |
routine: Place BB on right cheek. Conventional (non-spiral) 4 mm x 4 mm direct coronals through face, perpendicular to hard palate. Film soft tissue and bone windows. pre-op: Place BB on right cheek. Conventional (non-spiral) 3 mm x 3 mm direct coronals through face, perpendicular to hard palate. Film soft tissue and bone windows. |
Pre-MRI Orbit CT |
R/O Metal |
Conventional (non-spiral) 3 mm x 3 mm axials through orbits. Film bone and soft tissue windows. No IV contrast. |