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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