CT ADRENAL 3 PHASE

Anatomy of Adrenal Gland

Image taken from Microbe Notes

Appearance of Adrenal Gland in Axial CT Image

Right Adrenal Gland

Left Adrenal Gland

Protocol Structure

00_Liver3Phase (Adult)

  • Topogram
  • Non Contrast (full abdomen)

Contrast

  • Adrenal
    • (cover adrenal and kidney)
  • Portal Venous Phase
    • (full abdomen)
  • Delayed 15 Minutes
    • (cover adrenal and kidney)

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 patient’s nipple line to start the abdominal topogram.

Topogram Parameters

  • Topogram length: 512 cm
  • Slice: 0.6 mm
  • Scanning direction: Craniocoudal
  • Tube position: Top
  • Stop the topogram scanning when the scanning reach / pass over the inferior ischial ramus.

Non Contrast

  • Plan the Scan FOV (SFOV) box at topogram image
  • Set the top line at the level of mid heart
  • Set the bottom line at the level of inferior ischial ramus.
  • Ensure the lateral line to cover patient’s body outline.
  • Remind the patient before scanning as the breathing instruction will be given.

Scanning Parameters

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

 

Reconstruction of Non Contrast

Contrast

Type of contrast used:

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

Needle Placement Test:

  • Flow Rate: 3.5 ml/sec
  • Volume of Normal Saline: 15 ml

Contrast Injection:

  • Volume of Contrast Media: 100 ml (depend on patient’s body habitus)
  • Volume of Normal Saline: 50 ml
  • Method of injection: Contrast Injector
  • Flow Rate:
    • Contrast: 3.0 ml/sec
    • Normal Saline: 3.0 ml/sec

Post Contrast Scan Planning

Adrenal

  • Plan the Scan FOV (SFOV) box at topogram image
  • Set the top line at the level of mid heart
  • Set the bottom line at the level below the kidneys.
  • Ensure the lateral line to cover patient’s body outline.

Portal Venous Phase

  • Plan the Scan FOV (SFOV) box at topogram image
  • Set the top line at the level of mid heart
  • Set the bottom line at the level of inferior ischial ramus.
  • Ensure the lateral line to cover patient’s body outline.
  • Remind the patient before scanning as the breathing instruction will be given.

Examination Overview

Reconstruction of Adrenal

Reconstruction of Portal Venous Phase

Delayed 15 Minutes

  • Plan the Scan FOV (SFOV) box at topogram image
  • Set the top line at the level of mid heart
  • Set the bottom line at the level below the kidneys.
  • Ensure the lateral line to cover patient’s body outline.
  • Remind the patient before scanning as the breathing instruction will be given.

Multiplanar Reconstruction (MPR)

Coronal Portal Venous Phase

  • Image Thickness: 3.0 mm
  • Number of Image: 19
  • Coverage: Anterior to Posterior of abdomen

Series of Images Send to PACS

  1. Topogram
  2. Non Contrast 5.0 B30f
  3. Non Contrast 1.0 B20f
  4. Adrenal 5.0 B30f
  5. Adrenal 1.0 B20f
  6. PVP 5.0 B30f
  7. PVP 1.0 B20f
  8. Delayed 15 Min 5.0 B30f
  9. Delayed 15 Min 1.0 B20f
  10. Patient Protocol
  11. COR ST PVP

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