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These protocols are based on a 128 slice dual source Siemens CT. Some factors may need to be adjusted for a different CT.

Guideline identity image

CT - Elbow

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If arm can be positioned in extension use Upper Extremity UHR protocol.

If patient is unable to place arm above head, please check with attending Radiologist whether it is acceptable to image through body, if so the adult protocol must be used. The patient's arm placed by side and body is off centred so the area to be scanned is in the isocentre.

Indication To further demonstrate fracture of elbow in a flexed position ie supracondular, radial head, articular surface of elbow, dislocation of elbow
Patient Position

radiology elbow

- head first supine
- affected arm above head
- immobilised with sponges and strap.
- head tucked down and out of scan range.
- elbow must be in isocentre of gantry as FOV Maximum is 300.
- arm can be placed in head rest or on table (patient dependant)
Scan Area Start at distal humerus
Finish at proximal radius and ulna to include #.
kV/ mAs/
Time per Rotation
Care dose on
Child 100 (Adult 120) Child 80 (Adult 180) 1.0
Detector Collimation 0.6
Slice Thickness Child 0.6mm (Adult 2mm) Pitch  Child 0.8 (Adult 0.85)
Reconstructions Child and Adult 0.6mm U75u Baby Extremity (adult - Bone)
Child and Adult 0.6mm U30u Pelvis
Adult - 2mm U75u Bone
Post Processing 1.5mmU75u Baby Extremity/Bone Coronal MPR
1.5mmU75u Baby Extremity/Bone Sagittal MPR
1.5mmU75u Baby Extremity/Bone Axial MPR
1.5mmU30u Pelvis Axial ST MPR

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  • Date last published: 09 January 2018
  • Document type: Imaging Protocol
  • Services responsible: Paediatric Radiology

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