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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.

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CT - Hip Spica

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If metal in situ, considering using DE Hip Spica Monoenergetic Protocol

Indication - post osteotomy
- after MUA
- Arthrogram to check hip position
Patient Position - feet first
- supine
- pillows under head and body
- strap across pelvis and knees

A caregiver is able to stay and help secure patient from movement. On larger patients it is advisable to have a trial run of the patient through the scanner to check width of hip spica in relation to the gantry width.
Scan Area Start above the acetabulum
Finish below the lesser trochanter of the femur
kV/ Quality ref mAs/ 
Time per Rotation
Care dose 4D on
Care kV off
80 80 0.5
Detector Collimation 0.6
Slice Thickness 0.6 Pitch 0.8
IV Contrast Nil
Care Bolus Nil
Scan Delay  Nil
Reconstructions  0.6mm  B70f  Bone
0.6mm  B30f  Pelvis
Post Processing 4mm  Coronal Bone MPR
4mm  Axial Bone MPR
4mm  Axial ST MPR
Saphire2 on Pelvis Reconstruction
3D Hips if requested

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Document Control

  • Date last published: 05 October 2017
  • Document type: Imaging Protocol
  • Services responsible: Paediatric Radiology

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