Page 220 - A Practical Guide to Equine Radiography

THORAX 201

Ventrodorsal (VD) in foals 3. Indicate right/left with a marker.
VetBooks.ir (Figs 17.16–17.18) 4. Position the X-ray machine above the foal.

5. Focus–film distance: 120 cm. If a grid is
1. Position the foal in dorsal recumbency
without rotation onto a padded surface, used, adjust the focus–film distance to the
keeping the neck and both forelimbs distance specified for the grid.
extended forward and the hind limbs in 6. Use a vertical X-ray beam.
a frog-leg position. Personnel involved in 7. Centre the X-ray beam in the midline just
foal restraint must wear lead gloves. caudal to the xiphoid process.
2. Place the plate under the thorax, in portrait 8. Collimate to the edge of the plate.
orientation along the long axis of the spine; 9. Exposure guide: 90 kVp, 40 mAs.
a tunnel block will facilitate this.

Figure 17.16 Positioning to obtain a VD view of the thorax in foals.

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