CC BY 4.0 · Aorta (Stamford) 2013; 01(03): 198-201
DOI: 10.12945/j.aorta.2013.13-022
Images in Aortic Disease
Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.

Magnetic Resonance Imaging Findings in a Positron Emission Tomography-Positive Thoracic Aortic Aneurysm

Alain Nchimi
1   Department of Cardiovascular and Thoracic Imaging, University Hospital, Liège, Belgium
,
Thierry Couvreur
1   Department of Cardiovascular and Thoracic Imaging, University Hospital, Liège, Belgium
,
Benoit Meunier
1   Department of Cardiovascular and Thoracic Imaging, University Hospital, Liège, Belgium
,
Natzi Sakalihasan
2   Department of Cardiovascular Surgery, University Hospital, Liège, Belgium
› Institutsangaben
Weitere Informationen

Publikationsverlauf

09. April 2013

21. August 2013

Publikationsdatum:
28. September 2018 (online)

Abstract

Diffusion-weighted MRI (DW-MRI) and 18F-fluorodeoxyglucose positron emission tomography (FDG-PET) findings are described in a patient with a thoracic aortic aneurysm. Both examinations have the ability to noninvasively assess biological processes associated with aneurysm instability and therefore to potentially impact clinical decision-making regardless of the vessel size. Despite similarities between images on both techniques, FDG-PET evaluates glycolysis, while DW-MRI evaluates cell density, edema, and perfusion. Longitudinal studies including larger patient numbers are needed to investigate the temporal continuum and clinical significance of these findings.

 
  • References

  • 1 Patel MI, Hardman DT, Fisher CM, Appleberg M. Current views on the pathogenesis of abdominal aortic aneurysms. J Am Coll Surg 1995; 181: 371-382
  • 2 Sakalihasan N, Limet R, Defawe O. Abdominal aortic aneurysm. Lancet 2005; 365: 1577-1589 . 10.1016/S0140-6736(05)66459-8
  • 3 Reeps C, Essler M, Pelisek J, Seidl S, Eckstein HH, Krause BJ. Increased 18F-fluorodeoxyglucose uptake in abdominal aortic aneurysms in positron emission/computed tomography is associated with inflammation, aortic wall instability, and acute symptoms. J Vasc Surg 2008; 48: 417-423 . 10.1016/j.jvs.2008.03.059
  • 4 Padhani AR, Koh DM, Collins DJ. Whole-body diffusion-weighted MR imaging in cancer: current status and research directions. Radiology 2011; 261: 700-718 . 10.1148/radiol.11110474
  • 5 Jacobs MA, Ibrahim TS, Ouwerkerk R. AAPM/RSNA physics tutorials for residents: MR imaging: brief overview and emerging applications. Radiographics 2007; 27: 1213-1229 . 10.1148/rg.274065115
  • 6 Nchimi A, Defawe O, Brisbois D, Broussaud TKY, Defraigne JO, Magotteaux P. , et al. MR imaging of iron phagocytosis in intraluminal thrombi of abdominal aortic aneurysms in humans. Radiology 2010; 254: 973-981 . 10.1148/radiol.09090657
  • 7 Fontaine V, Jacob MP, Houard X, Rossignol P, Plissonnier D, Angles-Cano E. , et al. Involvement of the mural thrombus as a site of protease release and activation in human aortic aneurysms. Am J Pathol 2002; 161: 1701-1710 . 10.1016/S0002-9440(10)64447-1