Sternum (lateral view)

Dr Craig Hacking et al.

The lateral sternum view a radiographic investigation of the entire length of the sternum in profile. The view is used to query fractures or infection 1.

  • patient is erect with the left or right side of the thorax adjacent to the image receptor
  • patient's hands are behind their back
  • chin is raised as to be out of the image field 
  • arms are brought together behind their back so the chest is pushing outwards (pigeon chest)  
  • patient is standing upright
  • midsagittal plane must be perpendicular to the image receptor
  • lateral projection
  • suspended inspiration  
  • centring point
  • collimation
    • superiorly above the jugular notch 
    • inferior to the xiphoid process
    • anteroposterior from the skin border to 2 cm behind the sternum
  • orientation  
    • portrait 
  • detector size
    • 24cm x 30cm 
  • exposure
    • 75 -85 kVp
    • 20 -25 mAs
  • SID
    • 100 cm
  • grid
    • yes 
  • there should be no superimposition of structures over the sternum
  • entire length of the sternum can be seen in profile; the image is exposed enough that it is possible to trace the bony cortex the whole way around. 

The patient may be in a lot of pain due to the mechanism of the injury (normally blunt force). So be sure to only ask the patient to do what is within their abilities, some may not be able to push their chest out to get the sternum in profile, and in these situations, collimation will be key to avoiding scatter. 

It is not uncommon to use an aluminium filter over the anterior portion of the sternum to aid scatter reduction; this is normally the case for larger patients. 

This image can be done supine with a horizontal beam using the same principles. 

Radiographic views
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Article Information

rID: 40139
Section: Radiography
Synonyms or Alternate Spellings:
  • Lateral sternal view

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Cases and Figures

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    Figure 1: normal lateral sternum
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