Aortic Aneurysm and Pseudoaneurysm Assessment

Maricela Contreras1, Rajesh S. Amin1, E. Kent Yucel1

1 Brigham & Women's Hospital, Boston, Massachusetts
Publication Name:  Current Protocols in Magnetic Resonance Imaging
Unit Number:  Unit A12.2
DOI:  10.1002/0471142719.mia1202s03
Online Posting Date:  February, 2002
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Although contrast angiography is still considered the “gold standard” for evaluation of the aorta and its major branches, Magnetic Resonance Angiography (MRA) has quickly gained popularity as an imaging tool for the assessment of the entire aorta. MRA serves as an alternative imaging modality that can be utilized in patients with impaired renal function and with allergies to iodinated contrast medium (iodinated contrast medium is required in contrast angiography and computed tomography, CT). The purpose of this unit is to present fundamental MRA techniques useful in the evaluation of the thoracic and abdominal aorta based on experience on a 1.5 T GE LX scanner.

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Table of Contents

  • Basic Protocol 1: Imaging of Thoracic Aorta
  • Basic Protocol 2: Imaging of Abdominal Aorta
  • Alternate Protocol 1: Aneurysms Follow‐Up
  • Commentary
  • Figures
  • Tables
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Basic Protocol 1: Imaging of Thoracic Aorta

  • Normal saline (0.9% NaCl), sterile
  • Gadolinium‐based MR contrast agent (e.g., Magnevist, Omniscan, or Prohance)
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Literature Cited

Literature Cited
   Crawford, E.S. and Hess, K.R. 1989. Abdominal aortic aneurysm. N. Engl. J. Med. 321:1040‐1042.
   Grist, T. 2000. MRA of the abdominal aorta and lower extremities. J. Mag. Reson. Imaging 11:32‐43.
   Hirose, Y., Hamada, S., Takamiya, M., Imakita, S., Naito, H., and Nishimura, T. 1992. Aortic aneurysm: Growth rates measured by CT. Radiology 185:249‐252.
   Johnston, K.W., Rutherford, R.B., Tilson, M.D., Shah, D.M., Hollier, L., and Stanley, J.C. 1991. Suggested standards for reporting on aortic aneurysms. J. Vasc. Surg. 13:452‐458.
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   Schoenberg, S.O., Wunsch, C., Knopp, M.V., Essig, M., Hawighorst, H., Laub, G., Prince, M.R., Allenberg, J.R., and Van Kaick, G. 1999. Abdominal aortic aneurysm. Detection of multilevel vascular pathology by time‐resolved multiphase 3D gadolinium MR angiography: Initial report. Invest. Radiol. 34:648‐659.
   Shellock, F.G. 1996. Pocket Guide to MR Procedures and Metallic Objects. Lippincott‐Raven, Philadelphia.
Key References
   Fenlon, H.M. and Yucel, E.K. 1999. Advances in abdominal, aortic, and peripheral contrast‐enhanced MR angiography. In Magnetic Resonance Imaging Clinics of North America: New Techniques in Body MR Imaging. W. B. Sauders Company, Philadelphia.
  Reviews basic principles and new MRA techniques in the evaluation of the aorta and peripheral arteries.
   Prince, M.R., Grist, T.M., and Debatin, J.K. 1999. 3D Contrast MR Angiography. 2nd Ed. Springer‐Verlag, New York.
  Provides practical information on the technical aspects and clinical applications of MR angiography.
   Yucel, E.K., Anderson, C.M., Edelman, R.R., Grist, T.M., Baum, R.A., Manning, W.J., Culebras, A., and Pearce, W. 1999. Magnetic resonance angiography: Update on applications for extracranial arteries (AHA Scientific Statement). Circulation 100:2284‐2301.
  The American Heart Association Science Advisory and Coordinating Committee reviews the current clinical applications and provides recommendations for the use of MRA in the extracranial vessels. Potential future clinical applications for MRA are also presented.
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