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Flashcards in Diagnostic Imaging CAL Deck (8)

What things are normally present in the following in survey radiographs:
a) the stomach and intestinal lumen
b) the colon?

a) Liquid/gas
b) Faeces


What types of contrast radiography are available for visualising the GI tract?

Food + Barium Gastrogram
Double contrast gastrogram
Upper GI contrast study
Barium enemal


What do the problems/structures do the following imaging techniques help to visualise?
a) Barium Meal
b) Double contrast study
c) Barium series

a) Assesses gastric emptying
b) visualises the gastric mucosa
c) The upper GI (stomach intestines) - motility and identification of obstructions


What angle should a normal dog stomach be at compared to the spine?



What does localised vs. generalised GI distension indicate?

Localised = blockage
Diffuse = hypermotility, parvovirus, electrolyte imbalances etc.


What are the normal emptying times for:
a) an adult dog having eaten a barium meal
b) a cat eating a barium meal
c) are emptying times above these necessarily diagnostic?

a) 4-16hrs
b) 4-17hrs
c) no - it is very varied, a prolonged emptying time can be due to nerves. A time >24hrs would be convincing evidence of delayed gastric emptying


What is the role of ultrasonography in GI assessment (i.e. what does it assess?

GI wall - appropriate no/thickness of layers
Motility - normal peristaltic movement 4-5mins
Associated organs


Are changes to normal anatomy seen on ultrasound diagnostic?

No - ultrasonography is not sensitive so need to always compare results with other findings