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Abstract #1335

Screening Efficacy of Wearable Seismocardiography to Recommend MRI for Stratification of Aortic Valve Diseases

Ethan M I Johnson1, J. Alex Heller2, Flori Garcia Vicente2, Mozziyar Etemadi1,2, Alex Barker3, and Michael Markl1,4
1Biomedical Engineering, Northwestern University, Evanston, IL, United States, 2Anesthesiology, Northwestern University, Chicago, IL, United States, 3Radiology and Biomedical Engineering, University of Colorado, Anschutz Medical Campus, Aurora, CO, United States, 4Radiology, Northwestern, Chicago, IL, United States

Aortic valve diseases (AVD) require regular monitoring of aortic size and blood speeds. MRI can quantify morphology and flow parameters, such as velocity and wall shear stress, with high accuracy and reproducibility, especially as compared to echocardiography. However, the value proposition may be low for performing repeated MRI if there has been no change in disease state. A quick, inexpensive and easy to use test that identifies potential need for MR imaging could significantly raise the cost-effectiveness of using MRI for monitoring AVD. Here we show high potential screening efficacy of using seismocardiography to select AVD patients needing MRI examination.

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