* bulge of aorta * 11-1 o’clock on VD * can’t distinguish from aorta, pulmonary artery, or right auricle on lateral
Aortic stenosis
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What are the radiographic findings?
Diagnosis?
* bulge of main pulmonary artery * 1-2 o’clock on DV/VD * can’t distinguish from aorta, pulmonary artery, or right auricle on lateral
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What are the radiographic findings?
Diagnosis?
* aorta bulge, MPA bulge * three knuckle appearance (aorta bulge, main pulmonary artery bulge, left auricle bulge) - not seen here, but common in PDA dogs * enlarged vessels
\ PDA
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What are the radiographic findings?
Diagnosis?
Globoid cardiac silhouette
* centered around right atrium (we don’t need to be that specific)
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What are clinical signs/signalment of tricuspid valve dysplasia?
1. young dog 2. right sided murmur
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__******What are examples of acquired left-sided heart disease?***__
1. degenerative mitral valve disease (75% of cases) 2. DCM
1. may also cause right-sided disease 3. hypertrophic cardiomyopathy (cats)
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__******What are examples of acquired right-sided heart disease?***__
1. heartworms 2. tricuspid valve disease
1. can be acquired or congenital 2. acquired: can have right-sided changes as well if MVD present
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What are the radiographic findings?
Diagnosis?
Findings on lateral:
1. loss of caudal cardiac waist (flat line) 2. bulge of left atrium 3. dorsal deviation of trachea
Findings on DV/VD:
1. bulge at 2-3 o’clock = left auricle 2. enlarged left atrium (double wall sign) 3. a little right sided rounding
\ Diagnosis: mitral valve degeneration
* probably some tricuspid valve degeneration as well b/c of right-sided rounding
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What are the radiographic findings?
Diagnosis?
Findings:
* loss of cardiac waist * rounding of right side * left atrial enlargement
\ Not definitive diagnosis until echo performed
* likely DCM
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What are the radiographic findings in this cat on the left? (normal on right)
Diagnosis?
Findings:
* fat potato heart
\ Likely HCM
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__******Ddx for enlarged hearts in cats?***__
1. __**HCM (most common)**__ 2. restrictive CM 3. thyrotoxic CM 4. dilated 5. unclassified CM
\ \*Radiographs are not definitive for underlying cause for feline heart disease
\*__**Echocardiogram**__ needed to further investigate
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What are the radiographic findings for the cat on the left? (normal on right)
Diagnosis?
Findings:
1. fat potato heart 2. left-sided enlargement
Diagnosis
1. HCM most likely
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What are the radiographic findings?
Diagnosis?
Findings on VD:
* pulmonary artery enlargement * bulge of MPA * reverse D