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Abstract #3631

Assessment of myocardial involvement characteristics by cardiac MR imaging in patients with polymyositis and dermatomyositis

Changjing Feng1, Wangyan Liu1, Xiaoxuan Sun1, Qiang Wang1, Xiaomei Zhu1, Xiaoyue Zhou2, Yi Xu1, and Yinsu Zhu1
1The First Affiliated Hospital of Nanjing Medical University, Nanjing, China, 2Siemens Healthineers Ltd., Shanghai, China

Cardiac involvement is frequently observed in polymyositis (PM) and dermatomyositis (DM) but typically remains subclinical. Cardiac MR tissue characterization parameters could serve as early detection markers for myocardial involvement in PM/DM patients without overt LV dysfunction. PM and DM patients showed a different positive segment distribution of myocardial involvement, where PM patients was more serious than that in DM patients. Above all, CMR tissue characterization parameters can detect myocardial involvement characteristics between PM and DM and compare the differences between them.

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