Page 44 - A Practical Guide to Equine Radiography
P. 44

FOOT  25



                  Upright pedal technique                          8. Focus–film distance: 100 cm.
      VetBooks.ir  1. Remove shoes.                               10. Centre the X-ray beam in the midline of the
                                                                   9. Use a horizontal X-ray beam.
                   2. Remove dirt and any loose horn from the
                      sole.                                          hoof at:
                   3. Pack the foot with Play-Doh.                       − The coronary band for the distal phalanx
                   4. Place the foot with gloved hands on a              − 1 cm above the coronary band for the
                      Hickman block that is positioned slightly         navicular bone.
                      forward relative to the horse. The fetlock   11.  Collimation:
                      must be kept as much extended as possible.         − Around the foot for the distal phalanx
                   5. Place the plate in portrait orientation on the     − Around the navicular bone for the navic-
                      palmar side of the foot as close as possible      ular bone.
                      to the foot.                                12. Exposure guide:
                   6. Place a R/L marker on the lateral side of the      − Distal phalanx: 65 kVp, 8 mAs
                      plate.                                             − Navicular bone: 70 kVp, 10 mAs.
                   7. Position the X-ray machine on the dorsal
                      side of the foot.





















































                  Figure 4.14  Positioning to obtain a DPr-PaDiO view of the foot using an upright pedal technique. Red box
                  represents collimation for the distal phalanx and blue box represents collimation for the navicular bone.











       Equine Radiography.indb   25                                                                              27/11/2018   11:04
   39   40   41   42   43   44   45   46   47   48   49