Abdominal aortic aneurysm CT

Abdominal Aortic Aneurysm Microchapters
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Associate Editor-In-Chief: Cafer Zorkun, M.D., Ph.D. [2]

Contrast CT

• Provides detailed anatomic information and is valuable in planning AAA repair
• The disadvantages include:

  • Nephrotoxicity
  • Cost
  • Exposure to radiation
  • Suboptimal visualization of the origins of the aortic branch vessels
  • Occasionally, inaccurate localizing of the aneurysmal neck

CT Examples

Image courtesy of Professor Peter Anderson DVM PhD and published with permission © PEIR, University of Alabama at Birmingham, Department of Pathology

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  Abdominal Aortic Aneurysm

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  Abdominal Aortic Aneurysm

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  Abdominal Aortic Aneurysm

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  Abdominal Aortic Aneurysm

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  Abdominal Aortic Aneurysm

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  Abdominal Aortic Aneurysm

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  Abdominal Aortic Aneurysm

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  Abdominal Aortic Aneurysm

Labeled images shown below are courtesy of Radswiki and copylefted.

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  CT: a large abdominal aortic aneurysm

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  CT: a large abdominal aortic aneurysm

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  CT: a large abdominal aortic aneurysm

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  CT: a large abdominal aortic aneurysm

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  CT: a large abdominal aortic aneurysm

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  CT: a large abdominal aortic aneurysm

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  CT: a large abdominal aortic aneurysm

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  Ruptured abdominal aortic aneurysm

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  Ruptured abdominal aortic aneurysm

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  Ruptured abdominal aortic aneurysm

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  This patient presented with acute abdominal pain and hypotension. His non-contrast CT shows a large AAA and extensive periaortic haematoma. A thick (but subtle) hyperdense crescent is present within the aortic wall posteriorly and laterally which represents acute intramural hematoma, a sign of acute or impending rupture. (Image courtesy of Dr Donna D'Souza)

References

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