Lecture 26: Imaging of the Acute Canine Abdomen Flashcards
Ultrasound of SI- what wrong, what likely cause
dilated small intestine loops, FB obstruction caudal casting hypoechoic shadow
describe Pylorus and fundus in right lateral
fundus- gas (see)
Pylorus- fluid
describe pylorus and fundus in left lateral
fundus- fluid
Pylorus- gas (see)
describe pylorus and fundus in VD
fundus- fluid
Pylorus- gas (See)
describe pylorus and fundus in DV
fundus- gas (see)
Pylorus- fluid
what view is this
right lateral- gas in fundus
what view is this
Left lateral- gas in pylorus
what happens during GDV
pylorus rotates in left dorsal abdomen (usually in right ventral)
what is most important view to dx GDV and what do you see
right lateral
See pylorus dorsal- should not see- should see in left lateral ventrally
what wrong and what view
GD (not GDV- because pylorus not dorsal but gas filled)
Right lateral
what wrong and what view
GDV- right lateral
which of the following scenarios would you use contrast and not: luminal obstruction, motility, rupture, function
no contrast straight to sx: luminal obstruction, rupture
Contrast: motility, function
what are the pros and cons of barium
pros: coats stomach well, tasty, and not absorbed by GIT
Cons: not sterile, generates granulomas
what are the pros and cons of iodinated contrast
pros: sterile (IV or urinary bladder), safe in body cavities
Cons: inflammatory reactions in lungs, taste bad, allergic reactions (seizures, renal failure, pulmonary edema)
what are some reasons to put contrast in upper GI
- Mechanical obstruction
- Neoplasia
- Motility evaluation
- Melena
what would you see if you put contrast and there was complete obstruction
no contrast passes
what would you see if you put contrast in and there was neoplasia in GI
filling defect
what would you see if you put contrast in and there was melena
ulceration- filling defects
Contrast adheres
what wrong and how do you know
luminal obstruction- filling defects with contrast
Intestines super distended before FB, normal after
what wrong
Gas bubbles not in GIT, suspect GI perforation
what special view can you do to evaluate gas outside GIT
horizontal beam in lateral
what Wrong and what view is this
gas outside GIT (perforation)
Horizontal beam on left lateral
8yr old GSD presents with acute onset distended abdomen- following rad taken, what wrong and what view
GDV
Right lateral
6yr old lab retriever presents with distended abdomen and tachycardia. Following rad was taken what are two ddx
Pyometra or early pregnancy
5yr Shetland sheepdog presents with 2 day history of vomiting and anorexia. Following radiograph was taken. What wrong
pancreatitis
Stomach is pushed cranially, colon pushed dorsally
Only thing between stomach and colon is pancreas
5yr old golden retriever presents with abdominal pain, intermittent vomiting. Following rad was taken what is likely dx
duodenal FB (golf tee sign)
10yr old mixed breed got into trash 2 days prior, ate pork ribs, now vomits after each meal. Following rad was taken what is likely dx
Fat within pelvic canal compressing colon to cause dilation
3yr old mixed breed presents for vomiting past 24hrs. Following rad taken what is likely dx
duodenal FB obstruction
5yr old Labrador retriever presents for vomiting for 48hrs, unable to keep food or water down, 2 other FB surgeries last year. Following rad was taken what is likely dx
stricture causing partial obstruction at previous sx site
9yr old Doberman pincher presents with 3 day history of lethargy, anorexia and vomiting. The following radiograph was taken. What likely dx and what view is this
pyloric FB
Left lateral
