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  • CT FACIAL WITH CONTRAST

Anatomy of Facial Bone

Image taken from plasticsurgerykey.com

Appearance of Facial Bone in Axial CT Image

CT of Facial Bone

Examination Overview

Protocol Structure

00_FacialBone (Adult)

  • Topogram
  • Facial Bone NC

Contrast

  • Facial Bone IV

Patient Orientation Registry in System

  • Set the orientation patient in system: Head First – Supine

Topogram

  • Position the patient in head first supine position.
  • Align the patient in Mid-Sagittal plane of the table.
  • Position the transverse laser light beam at the level of 1 inch above head vertex.

Topogram Parameters

  • Topogram length: 256 cm
  • Slice: 0.6 mm
  • Scanning direction: Craniocoudal
  • Tube position: Lateral
  • Stop the topogram scanning when the scanning reach / pass over the chin

Non Contrast

  • Plan the Scan FOV (SFOV) box at topogram image
  • Set the top line at the level of head vertex.
  • Set the bottom line at the level of mental protuberance.
  • Ensure the lateral line to cover patient’s facial superficial structure (nasal bone) and skull.
  • Remind the patient to keep still during scanning.

Scanning Parameters

  • kVp:
  • mAs: Tube Current Modulation (TCM)
  • Scanning Direction: Craniocaudal
  • Scan Delay: 4 s
  • Slice:0.6
  • Image Comment: Non Contrast
  • Pitch: 0.6

Reconstruction of Non Contrast

Contrast

Type of contrast used:

  • Non-ionic iodinated contrast media
  • 300 I mg/mol

Contrast Injection:

  • Volume of Contrast Media: 50 ml
  • Volume of Normal Saline: 20 ml
  • Method of injection: Hand Bolus

Post Contrast Scan Planning

Post Contrast

  • Plan the Scan FOV (SFOV) box at topogram image
  • Set the top line at the level of head vertex.
  • Set the bottom line at the level of mental protuberance.
  • Ensure the lateral line to cover patient’s facial superficial structure (nasal bone) and skull.
  • Remind the patient to keep still during scanning.

Reconstruction of Post Contrast

Multiplanar Reconstruction (MPR)

Series of Images Send to PACS

  1. Topogram 0.6 T20f
  2. Facial Bone NC 5.0 H60s
  3. Facial Bone NC 5.0 H30s
  4. Facial Bone NC 1.0 H60s
  5. Facial IV 5.0 H30s
  6. Facial IV 1.0 H30s
  7. Patient Protocol
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Updated on January 20, 2023
CT CERVICAL SPINE

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