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Abstract #1596

An Efficacy Analysis of Whole-Body Magnetic Resonance Imaging in the Diagnosis and Follow-Up of Polymyositis and Dermatomyositis

Zhen-guo Huang1, Min-xing Yang1, Bao-xiang Gao1, Xiao-liang Chen1, He Chen1, and Kai-ning Shi2

1China-Japan Friendship Hospital, Beijing, People's Republic of China, 2Philips Healthcare (China)

To evaluate the value of whole-body magnetic resonance imaging (WBMRI) in diagnosing muscular and extramuscular lesions in patients with polymyositis (PM) and dermatomyositis (DM). A retrospective analysis of WBMRI data was performed on PM / DM patients who met the Bohan and Peter diagnostic criteria. WBMRI comprehensively displays the muscular involvement in PM / DM patients, and has the ability to diagnose other associated extramuscular diseases, such as ILD and systemic malignancy. WBMRI can also help screen for multifocal steroid-induced osteonecrosis.

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