Abstract #1688

MRA for Pulmonary Embolism to Conserve Iodinated Contrast Media During an Acute Supply Chain-related Shortage

Jitka Starekova¹, Sheena Y Chu¹, David A Bluemke^1,2, Thomas M Grist^1,2,3, Joanna E Kusmirek¹, Scott K Nagle¹, Mark L Schiebler¹, Meghan G Lubner¹, Prashant Nagpal¹, and Scott B Reeder^1,2,3,4,5

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

Synopsis

Keywords: Vessels, MR ValueThe closure of GE Healthcare’s Shanghai facility in April 2022 during the COVID-19 lockdown in China led to a major supply chain disruption of iodinated contrast media in North America. In response, our department instituted measures to conserve iodinated contrast, including the use of MRA as an alternative to contrast enhanced CTA to evaluate for pulmonary embolus (PE). Over the period of April through July of 2022, this strategy conserved an estimated 27 liters of iohexol 350 mg/ml. We report our experience on the use of MRA for diagnosis of PE in the general population during this period.

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