Large animal radiotherapy Flashcards
What are the practical difficulties of large animal radiography?
Most are done with conscious standing animal
Machine operator, plate holder and animal handler often required
Often done at client premises
Use of horizontal beam on large patients requires careful attention to safety, planning and good technique
What are the risks of horizontal beam radiography?
Higher exposures than used in small animals - travel further, more scatter
Must use protective clothing and plate holders where possible
Describe the inverse square law of radiography
Strength of X-ray beam is inversely proportional to square of distance from source. Standing double the distance from source of radiation will quarter the dose
What are the 2 standard views of large animal radiography?
Lateromedial (LM)
Carpus/tarsus and below: Dorsopalmar/plantar
Above carpus and tarsus: Craniocaudal
What are the oblique views used in large animal radiography?
Dorsolateral palmaro/plantaromedial oblique
Dorsomedial palmaro/plantarolateral oblique
What is the purpose of oblique views?
What are the different terms for white areas on radiography, CT, MRI and ultrasound?
What 3 questions must you answer when reporting on an image?
What have you got?
What can you see?
What does it mean?
