Aortic Dissection

Naoki Takahashi1, Vamsidhar Narra1

1 Mallinckrodt Institute of Radiology, Washington University Medical Center, St.Louis, Missouri
Publication Name:  Current Protocols in Magnetic Resonance Imaging
Unit Number:  Unit A12.1
DOI:  10.1002/0471142719.mia1201s00
Online Posting Date:  May, 2001
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Abstract

This unit presents a for imaging of thoracic aoprta to rule out aortic dissection. The core components of the imaging protocol are ECG (electrocardiograph)‐gated black blood HASTE (half Fourier single shot turbo spin echo), and contrast‐enhanced MR angiography (MRA). When no abnormal findings are seen in black blood HASTE or cine sequences, it is somewhat controversial whether contrast‐enhanced MRA is necessary. An based on a time of flight (TOF) sequence is presented which can be used instead of contrast‐enhanced MRA.

     
 
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Table of Contents

  • Basic Protocol 1: Imaging of Thoracic Aorta to Rule Out Aortic Dissection
  • Alternate Protocol 1: Time of Flight (TOF)
  • Commentary
  • Literature Cited
  • Figures
  • Tables
     
 
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Materials

Basic Protocol 1: Imaging of Thoracic Aorta to Rule Out Aortic Dissection

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

Videos

Literature Cited

Literature Cited
   Krinsky, G.A., Rofsky, N.M., Decorato, D.R., Weinreb, J.C., Earls, J.P., Flyer, M.A., Galloway, A.C., and Colvin, S.B. 1997. Thoracic aorta: Comparison of gadolinium‐enhanced three‐dimensional MR angiography with conventional MR imaging. Radiology 202:183‐193.
   Murray, J.G., Manisali, M., Flamm, S.D., Van Dyke, C.W., Lieber, M.L., Lytle, B.W., and White, R.D. 1997. Intramural hematoma of the thoracic aorta: MR image findings and their prognostic implications Radiology 204:349‐355.
   Prince, M.R., Narasimham, D.L., Jacoby, W.T., Williams, D.M., Cho, K.J., Marx, M.V., and Deeb, G.M. 1996. Three‐dimensional gadolinium‐enhanced MR angiography of the thoracic aorta. AJR Am. J. Roentgenol. 166:1387‐1389.
   Shellock, F.G. 1996. Pocket Guide to MR Procedures and Metallic Objects. Lippincott‐Raven, Philadelphia.
   Simonetti, O.P., Finn, J.P., White, R.D., Laub, G., and Henry, D.A. 1996. “Black blood” T2‐weighted inversion‐recovery MR imaging of the heart. Radiology 1996:49‐57.
   Sommer, T., Fehske, W., Holzknecht, N., Smekal, A.V., Keller, E., Lutterbey, G., Kreft, B., Kuhl, C., Gieseke, J., Abu‐Ramadan, D., and Schild, H. 1996. Aortic dissection: a comparative study of diagnosis with spiral CT, multiplanar transesophageal echocardiography, and MR imaging. Radiology 199:347‐352.
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