Coronary MRA

Vibhas S. Deshpande1, Debiao Li2

1 Siemens Medical Solutions, San Francisco, California, 2 Northwestern University, Chicago, Illinois
Publication Name:  Current Protocols in Magnetic Resonance Imaging
Unit Number:  Unit A11.5
DOI:  10.1002/0471142719.mia1105s15
Online Posting Date:  June, 2008
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Abstract

Coronary X‐ray angiography is the gold standard for coronary artery imaging, but is an invasive procedure, with a minor risk of potentially serious complications in addition to the drawback of exposure to ionizing radiation. Coronary magnetic resonance angiography (MRA) is a noninvasive method of imaging the coronary arteries, with no known adverse effects. In addition to morphologic evaluation of coronary artery disease with coronary MRA, cardiac MRI offers exciting possibilities to study the functional significance of coronary artery disease in the same setting. Three widely used coronary MRA approaches are presented‐‐two free‐breathing navigator‐gated methods, and a breath‐hold method. Although the positive predictive value of coronary MRA for detecting stenoses remains lower than that of X‐ray angiography, coronary MRA can reliably detect anomalous origins of coronary arteries, and has a high negative predictive value for stenoses. In conclusion, coronary MRA is a promising tool to study coronary artery disease.

Keywords: magnetic resonance imaging (MRI); coronary artery imaging; magnetic resonance angiography (MRA); non‐contrast MR angiography; steady‐state free precession; fast imaging

     
 
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Table of Contents

  • Strategic Planning
  • Basic Protocol 1: Respiratory‐Gated Whole‐Heart Imaging Using a Steady‐State Free Precession Sequence
  • Alternate Protocol 1: Respiratory‐Gated Targeted Imaging Using a Steady‐State Free Precession Sequence
  • Alternate Protocol 2: Breath‐Hold Imaging Using a Steady‐State Free Precession Sequence
  • Commentary
  • Literature Cited
  • Figures
  • Tables
     
 
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Materials

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Figures

Videos

Literature Cited

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   Shellock, F.G. 2001. Magnetic Resonance Procedures: Health Effects and Safety. CRC Press, Boca Raton, Fla.
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   Wang, Y., Riederer, S., and Ehman, R. 1995. Respiratory motion of the heart: Kinematics and the implications for spatial resolution of coronary MR imaging. 1995. Magn. Reson. Med. 33:713‐719.
   Weber, O.M., Martin, A.J., and Higgins, C.B. 2003. Whole‐heart steady‐state free precession coronary artery magnetic resonance angiography. 2003. Magn. Reson. Med. 50:1223‐1228.
   Wielopolski, P., van Geuns, R., de Feyter, P., and Oudkerk, M. 1998. Breath‐hold coronary MR angiography with volume‐targeted imaging. Radiology 209:209‐219.
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Internet Resource
   http://www.mrisafety.com
  Covers a number of important patient management issues related to MR imaging, including recommended safety procedures, a list of metallic implants that have been tested for MR compatibility, and a list of other sources on MR safety.
Key Reference
   Shellock, 2001. See above.
  Covers a number of important patient management issues related to MR imaging, including recommended safety procedures, a list of metallic implants that have been tested for MR compatibility, and a list of other sources on MR safety.
GO TO THE FULL PROTOCOL:
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