Page 186 - A Practical Guide to Equine Radiography

CERVICAL SPINE 167

Ventrodorsal (VD) of the cranial neck 5. Focus–film distance: 100 cm. If a grid is
VetBooks.ir (Figs 15.14–15.16) used, adjust the focus–film distance to the

distance specified for the grid.
1. Extend the head and neck by positioning
the head horizontal to the ground with the 6. Orientate the X-ray beam obliquely upwards,
help of a head stand. Avoid any tilting or perpendicular to the plate.
rotation of the head and neck. 7. Centre the X-ray beam in the midline of the
2. Place the plate horizontally facing down- cranial neck, at the level of the wings of the
ward on the dorsal side of the cranial aspect atlas.
of the neck. 8. Collimate around the area of interest.
3. Indicate right/left with a marker. 9. Exposure guide: 90 kVp, 55 mAs.
4. Position the X-ray machine ventral to the
cranial aspect of the neck.

Figure 15.14 Positioning to obtain a VD view of the cranial portion of the cervical spine.

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