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Abstract #3928

3D Contrast Enhanced MRA of the Pulmonary Arteries Using 2D Parallel Imaging (ARC); Rapid Single Breath Hold Pulmonary MRA in Patients with Dyspnea

Mark L. Schiebler1, Scott K. Nagle1, Scott B. Reeder1,2, christopher Francois1, Dana Tudorascu1,3, Reed F. Busse4, Anja Brau4, Jean H. Brittain4, Thomas Grist1

1Radiology, UW Madison, Madison, WI, USA; 2Medical Physics, UW Madison, Madison, WI, USA; 3Biostatistics, UW Madison, Madison, WI, USA; 4Applied Science Lab, General Electric, Waukesha, WI, USA

21 emergency room patients with dyspnea were studied with contrast enhanced 2D ARC 3D MRA of the pulmonary arteries. Three patients had a total of 5 emboli identified by this single breath hold MRA technique. In all cases the exam was diagnostic to the segmental level. This method can be safely used for young patients in whom radiation dose from CTA is problematic.