Skull - dorsoventral canine X-ray positioning guide Positioning Sternal recumbency Remove collar Ensure mandible parallel with table top If under GA ensure ET tube running straight to reduce risk of soft tissue distortion Also ensure ears are not tucked under skull as this can cause an artefact Centre in the midline, roughly at the level of the orbits - but this can vary depending upon skull shape Ensure collimated to cover from tip of nose to entire vault of skull Ensure L/R marker in primary beam. What to look for Look at the bullae to check for rotation - all mirrored structure should be equal sizes. Top tips In deep chested dogs it can be worth raising the cassette off the table top to help get them straight- just remember to adjust your exposure or FFD.
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