Thoracic Spine - ventrodorsal canine veterinary X-ray positioning guide Positioning Dorsal recumbency Cradle (or sandbags) can be used under pelvis Extend thoracic limbs cranially Ensure not rotated Centre over T6-7, in midline Collimate to include entire thoracic spine Ensure L/R marker in primary beam. What to look for Ensure not rotated - look for sternum to be superimposed over the spine. Top tips If the dog keeps rotating a thin foam pad under the spine can help - especially on thin dogs
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