Abstract #2822

Direct and Indirect Findings of Pulmonary Embolism Using Contrast Enhanced Magnetic Resonance Angiography (CE-MRA)

Donald Benson¹, Scott K. Nagle^1,2,3, Christopher J Francois¹, Scott B. Reeder^1,2,4,5,6, Thomas M. Grist^1,2,6, Michael D. Repplinger^1,5, and Mark L. Schiebler¹

¹Department of Radiology, University of Wisconsin-Madison, Madison, WI, United States, ²Department of Medical Physics, University of Wisconsin-Madison, Madison, WI, United States, ³Department of Pediatrics, University of Wisconsin-Madison, Madison, WI, United States, ⁴Department of Medicine, University of Wisconsin-Madison, Madison, WI, United States, ⁵Department of Emergency Medicine, University of Wisconsin-Madison, Madison, WI, United States, ⁶Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, United States

Contrast enhanced pulmonary MRA is an important modality for detecting PE in those situations where there are concerns about excess exposure to ionizing radiation or contraindications to iodinated contrast. While most radiologists are experienced in interpreting CT angiographic studies for pulmonary embolus, many are unfamiliar with CE-MRA for the diagnosis of PE. It is important for interpreting physicians to understand both the direct and indirect findings associated with PE. In our retrospective study of 682 patients, we found 136 PE in 61 patients. The prevalence of both direct and indirect findings associated with PE were reviewed in this study.

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