Large Animal Radiography Flashcards
How do you radiograph a large animal?
Done standing
Horizontal Beam Radiography
Often done at client premises than in practice
Considerations for Horizontal Beam Radiography
- Need well restrained/sedated animals
- Higher exposures than used in small animals
○ Travel further
○ Scatter more - Must use protective clothing and plate holders where possible
- Inverse square law
- Lead gowns and thyroid protectors
- Hold plate as far away from you as possible
Inverse Square Law
○ Strength of beam is inversely proportional to square of distance from source
○ Standing double the distance away will quarter dose
How are radiographs orientated?
Cranial - left
Caudal - right
Proximal - top
Distal - bottom
What are the 4 common views of forelimbs in large animals?
Lateromedial
Dorsopalmar
Dorsolateral Palmaromedial Oblique
Dorsomedial Palmarolateral Oblique
What are the 4 common views of hindlimbs in large animals?
Lateromedial
Dorsoplantar
Dorsolateral Plantarmedial Oblique
Dorsomedial Plantarlateral Oblique
Lateromedial View
Beam travels from lateral to medial
Best way to view dorsal and palmar/plantar aspects
Dorsopalmar/Dorsoplantar
Beam travels from dorsal to palmar/plantar aspect
Best way of viewing lateral and medial aspects
What is a dorso-palmar view called above the carpus?
Craniocaudal
Dorsolateral palmaro/plantarmedial oblique
Beam travels from dorsolateral to palmaromedial aspect
Best way to view dorsomedial and palmar-lateral aspects of limb
Dorsomedial palmaro/plantarlateral oblique
Beam travels from dorsomedial to palmarolateral aspect
Best way to view dorsolateral and palmarmedial aspects of limb
How can you use it to make large animal radiography as safe as possible?
○ Stand as far away as possible
○ Use restraints if possible
○ Wear lead gowns, gloves, thyroid protectors
What information must you record on a label?
○ Patient ID
○ Date
○ Left/right
○ Medial/lateral
Medial/lateral
