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18F-FDG PET/MRI in the diagnosis of an infected aortic aneurysm

Anna M Sailer1,2, Frans C Bakers1, Jan W Daemen3

  • 1Department of Radiology, Maastricht University Medical Centre, Maastricht, the Netherlands.

Cardiovascular Diagnosis and Therapy
|June 1, 2018
PubMed

Insights

Integrated whole-body 18F-fluorodeoxyglucose (18F-FDG) PET/MRI successfully diagnosed an infected aortic aneurysm. This imaging approach precisely located the infection and guided successful surgical treatment.

Area of Science:

  • Medical Imaging
  • Cardiovascular Surgery
  • Infectious Diseases

Background:

  • Saccular aortic aneurysms pose diagnostic challenges, particularly in identifying infection.
  • Early and accurate diagnosis is crucial for effective treatment and patient outcomes.

Observation:

  • An integrated whole-body 18F-fluorodeoxyglucose (18F-FDG) PET/MRI was utilized for the diagnostic work-up of a saccular aortic aneurysm.
  • The imaging study provided comprehensive information regarding the aneurysm's status.

Findings:

  • The 18F-FDG PET/MRI clearly identified the aortic aneurysm as infected.
  • The study precisely delineated the extent of the infection in relation to adjacent aortic branch vessels.
  • The aortic lesion was confirmed as the primary source of infection.

Implications:

  • Integrated PET/MRI is a valuable tool for diagnosing infected aortic aneurysms.
  • Accurate localization of infection is essential for planning surgical interventions.
  • Successful treatment involved open type V thoracoabdominal aortic aneurysm (TAAA) repair and pericardial graft replacement, with surgical cultures confirming aortic wall infection.
Keywords:
18F-fluorodeoxyglucose (18F-FDG)aortic aneurysmaortitisinfected aneurysmmagnetic resonance imaging (MRI)mycotic aneurysmpositron emission tomography (PET)

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