CT TEMPORAL BONE WITH CONTRAST

Last Updated on February 15, 2022 by Mohamad Izwan

Author: Nabilah Nawi


Protocol Structure

00_Inner Ear (Adult)

  • Topogram
  • Non contrast
  • Contrast

Topogram

Must cover vertex of skull to mid of mandible

Head rest must in flat


Non Contrast

Include upper frontal sinus to lower maxillary sinus


Reconstruction Non Contrast

 Recon 1Recon 2
NameBiopsy Planning 5.0 B31fBiopsy Planning 1.5 B31f
Slice Thickness5.0mm1.5mm
Increment3.5mm1.0mm
KernelB31f medium smoothB31f medium smooth
WindowingMediastinumMediastinum

Injector Setting

Inject using hand bolus method through the IV line

50ml contrast


Reconstruction Contrast

 Recon 1Recon 2Recon 3Recon 4
NameInnerEar IV 2.0 H60sInnerEar IV 0.6 H60sInnerEar IV 2.0 H30sInnerEar IV 0.6 H30s
Slice Thickness2.0mm0.6mm2.0mm0.6mm
Increment2.0mm0.4mm2.0mm0.4mm
KernelH60s sharp FRH60s sharp FRH30s medium smoothH30s medium smooth
WindowingInner EarInner EarLarynxLarynx

Multi Planar Reconstruction (MPR)

Parallel Ranges:

  • Image thickness : 3.0mm
  • Number of images : 19

Non Contrast Bone

  • CoronalĀ (cover entire sphenoid sinus and mastoid air cells as shown in the image below)
  • Axial

IV soft tissue 

  • Coronal 
  • Axial

Series of Images Send to PACS

  1. Topogram 0.6 T80f
  2. InnerEar 2.0 H60s
  3. InnerEar 0.6 H60s
  4. InnerEar 2.0 H30s
  5. InnerEar 0.6 H30s
  6. InnerEar IV 2.0 H60s
  7. InnerEar IV 0.6 H60s
  8. InnerEar IV 2.0 H30s
  9. InnerEar IV 0.6 H30s
  10. Patient Protocol
  11. COR Bone
  12. SAG Bone
  13. COR ST
  14. SAG ST

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