Anatomy of Shoulder

Image taken from orthoinfo.aaos.org

Appearance of Shoulder in Axial CT Image

CT Elbow (Axial Images)

Examination Overview

Protocol Structure

00_SHOULDERROUTINE (ADULT)

  • Topogram
  • Shoulder (Non Contrast)

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’s shoulder in Mid-Sagittal plane of the table (if possible).
  • Position the transverse laser light beam at the level of 1 inch above patient’s shoulder to start the shoulder topogram.

Topogram Parameters

  • Topogram length: 256 cm
  • Slice: 0.6 mm
  • Scanning direction: Caudocranial
  • Tube position: Top
  • Stop the topogram scanning when the scanning reach / pass over the scapula angle.

Non Contrast

  • Plan the Scan FOV (SFOV) box at topogram image
  • Set the top line at the level above the shoulder
  • Set the bottom line at the level of below the scapula angle.
  • Ensure the lateral line to cover humerus soft tissue outline and thoracic spine / sternoclavicular join of the opposite side.
  • Remind the patient to keep in place and not moving the affected arm / shoulder.

Scanning Parameters

  • kVp: 120
  • mAs: Tube Current Modulation (TCM)
  • Scanning Direction: Craniocaudal
  • Scan Delay: 2 s
  • Slice: 3.0mm (Acq. 128 x 0.6 mm)
  • Image Comment: Non Contrast
  • Pitch: 0.8

Reconstruction of Non Contrast

Recon 1Recon 2Recon 3
NameShoulder 5.0 B60sShoulder 0.6 B31sShoulder 0.6 B60s
Slice Thickness5.0 mm0.6 mm0.6 mm
Increment5.0 mm0.4 mm0.4 mm
KernelB60s sharpB31s medium smoothB60s sharp
WindowingBoneShoulderBone

Series of Images Send to SyngoVia

  1. Shoulder 0.6 B31s

Series of Images Send From SyngoVia to PACS

  1. Radial ranges of shoulder

Series of Images Send to PACS

  1. Topogram
  2. Shoulder 5.0 B60s
  3. Shoulder 0.6 B31s
  4. Shoulder 0.6 B60s
  5. Patient Protocol