Radiology Packet 3

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Radiology Packet 3

• Normal vs enlarged heart

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Normal vs enlarged canine heart

• Lateral

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Normal vs enlarged canine heart
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Normal vs enlarged canine heart

• RF
• The vertebral heart sum of the normal heart is
  10.1 (norm 9.7 /- .8).
• The vertebral heart sum of the abnormal heart is
  12.1.
• Elevation of the caudal mainstem bronchi and loss
  of caudal cardiac waist.
• Elongation of the caudal border of the heart.
• Cardiac silhouette is wider than normal.
• Bulging at the craniodorsal cardiac margin.
• There is decreased detail of the pulmonary vessel
  margins. This is due to increased interstitial
  infiltrates as a result of normal aging change.

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Normal vs enlarged canine heart

• Ventrodorsal view

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Normal vs enlarged canine heart

• RF
• Heart occupies 80 width of the thorax (norm
  lt65).
• Cardiac silhouette is rounded in its contours
  with no visible apex.
• Left side of the heart is much closer to the
  thoracic wall than the right side of the heart is
  to the right side of the thorax but since the
  patient is rotated to the left it is unclear if
  there is left-sided cardiac enlargement or due to
  rotation.
• No evidence of pulmonary congestion.

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Normal vs enlarged feline heart

• Lateral view

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Normal vs enlarged feline heart
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Normal vs enlarged feline heart

• RF
• Vertebral heart sum is 7.5 in the normal cat
  and 9.0 in the abnormal cat (norm 7.5-7.9).
• Prominent bulges of both the cranial and caudal
  cardiac margins and a significant increase in the
  amount of sternal contact of the heart.
• Abnormal hear shape is the result of left
  ventricular hypertrophy, enlargement of the right
  and left atria and accentuation of the junction
  between the ventricle and atria.

• RD
• Hypertrophic cardiomyopathy

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Normal vs enlarged feline heart

• Ventrodorsal view

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Normal vs enlarged feline heart

• RF
• The heart is much too long.
• The atria are markedly enlarged .
• The ventricles are relatively normal size
  creating a valentine heart.
• Thorax is over-inflated, likely due to
  respiratory distress. This is noted as caudal
  displacement of the costodiaphragmatic angles and
  the scalloped appearance of the diaphragm in the
  ventrodorsal view.
• There is indication of interstitial infiltrates
  due to early cariogenic pulmonary edema.
• There is mild rotation of the normal VD view
  resulting in a false positioning of the heart to
  the left.