Page 77 - A Practical Guide to Equine Radiography
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58 A PRACTICAL GUIDE TO EQUINE RADIOGRAPHY
Flexed dorsopalmar (flexed DPa) 4. Position the X-ray machine on the dorsal
VetBooks.ir (Figs 6.33 and 6.34) 5. Focus–film distance: 100 cm.
side of the foot.
1. Flex the fetlock by placing the foot on a
Hickman block, keeping the metacarpus/ 6. Use a horizontal X-ray beam.
metatarsus vertical to the ground with 7. Centre the X-ray beam at the level of the
gloved hands. fetlock joint.
2. Place the plate in portrait orientation on the 8. Collimate around the fetlock joint, includ-
palmar side of the fetlock as close as pos- ing the distal third of the metacarpus/
sible to the limb. metatarsus.
3. Place a R/L marker on the lateral side of the 9. Exposure guide: 70 kVp, 10 mAs.
plate.
A B
Figure 6.33 Diagram showing how to obtain a flexed DPa of the distal aspect of the metacarpus (A) and
positioning to obtain the same view (B).
Figure 6.34 Flexed DPa projection of the distal
aspect of the metacarpus.
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