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Foot Xray Positioning
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Department of Podiatry

Patient Positioning for Xrays

General view of the X-ray suite, showing the adjustable patient couch, the X-ray beam apparatus (suspended from the ceiling). The equipment at the back of the room on the left is the OPG unit for jaw X-rays. The 'steps' next to it is the Orthoposer, used to take lateral foot X-rays.

 

AP weightbearing with the subject in normal angle and base of gait. The red arrow indicates the direction of the X-ray beam, which is aimed at the navicular. The X-ray unit is angled 15° from vertical. Click here for an example of a picture of the film that is produced.

 

Medial oblique foot weightbearing. The X-ray machine head is angled at 15°, 30°, 45° or 60° from vertical, with the central ray aimed at 1st cuneiform. Click here for an example of a picture of the film that is produced.

 

Lateral weightbearing. The subject is standing on an Orthoposer box, that elevates the foot enough so that the X-ray beam can be angled 90° from vertical, and the central ray directed at the lateral cuneiform. The X-ray film is inserted into a slot in the Orthoposer such that only half is exposed for each foot (ie. in this case, to image the right foot, the subject would turn around 180°, and the film would be turned upside down so that the unexposed part currently protected by lead inside the box could be used). Click here for an example of a picture of the film that is produced.

 

Axial calcaneal non-weightbearing. The subject is lying on the adjustable couch, with the film under one heel. The head of the X-ray unit is angled 45° to the horizontal, with the central ray aimed at posterior calcaneus. Click here for an example of a picture of the film that is produced.

 

Axial calcaneal weightbearing. The subject stands on the film in the normal and base of gait, and the X-ray beam is directed towards the posterior calcaneus, angled at 45° to vertical.

 

Axial sesamoid nonweightbearing. The head of the X-ray unit is angled perpendicular to the ground, with the central ray aimed at the midline of the foot. Click here for an example of a picture of the film that is produced.

 


Content Approved by: Head of Podiatry

Page maintained by: Podiatry Webmaster

Last Updated: July 8th, 2003