Page 63 - A Practical Guide to Equine Radiography

44 A PRACTICAL GUIDE TO EQUINE RADIOGRAPHY

Dorsopalmar (DPa) (Figs 6.5–6.8) 4. Position the X-ray machine on the dorsal
VetBooks.ir 1. Stand the horse square with the cannon 5. Focus–film distance: 100 cm.
side of the limb.
bone vertical to the ground in each direc-
tion, and ensure all limbs are equally 6. Angle the X-ray beam 10–15 degrees down-
weight-bearing. ward from the horizontal to move the
2. Place the plate resting on the ground in proximal sesamoid bones away from the
portrait orientation on the palmar side of joint.
the joint, as close as possible to the limb. 7. Centre the X-ray beam at the level of the
The plate should be aligned parallel with fetlock joint.
the pastern axis. 8. Collimate around the fetlock joint.
3. Place a R/L marker on the lateral side of the 9. Exposure guide: 70 kVp, 8 mAs.
plate.

Figure 6.5 Positioning to obtain a DPa view of the fetlock.

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