Page 127 - A Practical Guide to Equine Radiography

108 A PRACTICAL GUIDE TO EQUINE RADIOGRAPHY

Dorso 45º lateral-plantaromedial 4. Position the X-ray machine dorsolaterally
VetBooks.ir oblique (D45L-PlMO) (Figs 11.9–11.12) to the limb at a 45-degree angle from the

sagittal plane of the limb.
1. Stand the horse square with the cannon
bone vertical to the ground in each direc- 5. Focus–film distance: 100 cm.
tion, and ensure all limbs are equally 6. Use a horizontal X-ray beam.
weight-bearing. 7. Centre the X-ray beam at the level of the dis-
2. Place the plate in portrait orientation plan- tal intertarsal joint (about 10 cm below the
taromedially to the joint as close as possible point of the hock or 2 cm above the head
to the limb. of the fourth metatarsal bone).
3. Place a R/L marker on the lateral side of the 8. Collimate around the tarsus.
plate. 9. Exposure guide: 70 kVp, 10 mAs.

A B

Figure 11.9 Diagram showing how to obtain a D45L-PlMO view of the tarsus (A) and positioning to obtain the
same view (B).

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