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Abstract #2695

Pulmonary Magnetic Resonance Angiography: The direct and indirect findings of pulmonary embolism and their mimics

John Bisges1, Scott K. Nagle1, Christopher J. Fran├žois1, Peter Bannas2, Michael D. Hope3, J. Paul Finn4, Karl Vigen1, Thomas M. Grist1, Scott B. Reeder1, and Mark L. Schiebler1

1Radiology, UW-Madison, Madison, WI, United States, 2Radiology, University of Hamburg-Eppendorf, Hamburg, Germany, 3Radiology, University of California at San Francisco, San Francisco, CA, United States, 4Radiology, University of California at Los Angeles, Los Angeles, CA, United States

The use of pulmonary magnetic resonance angiography (MRA) is playing an increasingly important role for the primary diagnosis of pulmonary embolism (PE) and other causes of acute chest pain. We will define appropriate imaging scenarios for the clinical use of this test. Then, using a pictorial essay approach, we will demonstrate the various imaging features that: (A) directly indicates the presence of PE; (2) indirectly suggests the presence of PE; (3) findings that directly show right heart strain; (4) indirect findings suggesting elevated central venous pressure and most importantly; (5) those findings that can mimic PE. After review of these teaching cases, imaging physicians will be able to confidently make the diagnosis of PE on pulmonary MRA examinations.

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