Scott K. Nagle1,2, Mark L. Schiebler1,
Christopher J. Francois1, Thomas M. Grist1, Scott B.
1Radiology, University of Wisconsin,
Madison, WI, United States; 2Radiology, Wm. S. Middleton Veterans
Affairs (VA) Hospital, Madison, WI, United States; 3Medical
Physics, University of Wisconsin, Madison, WI, United States
MRA has been clinically accepted at our institution as a useful alternative
to CTA for the diagnosis of pulmonary embolism, particularly in young
patients where radiation dose reduction is a high priority. This increasing utilization has led to the
need to understand and mitigate artifacts that are unique to MRA, increasing
the diagnostic accuracy of these scans. Based upon our experience
interpreting approximately 200 clinical cases, we have identified and
provided potential solutions to two common artifacts that are unique to MRA.