Clinical Research Directory

MYO-SHARE: MYO-MRI in Neuromuscular Diseases

Sponsor: Ottawa Hospital Research Institute

Summary

Neuromuscular Diseases (NMDs) affect \> 7 million people worldwide. NMDs are often difficult to accurately diagnose, with over 200 different genetic causes with overlapping clinical presentations. Muscle Magnetic Resonance Imaging (Muscle MRI) allows for non-invasive, comprehensive, and reproducible evaluation of disease-affected and spared muscles. The selective replacement of muscle tissue by fat is the main contributor to pathological patterns determined by T1-weighted Muscle MRI. Although the diagnostic utility of Muscle MRI has been emphasized in the last years, the very low incidence of NMDs (rate .01 to 15 per 100,000 population), and the challenge to attain sufficient sample sizes to study the imaging characteristics of these patients have limited their acceptance as first-line, non-invasive diagnostic procedures. The purpose of this study is to examine the selective pattern of muscle pathology as detected by MRI of different sub-types of NMDs and validate this technique as an important and helpful non-invasive diagnostic screening tool. This study will prospectively assemble a well-defined cohort of 1000 patients with NMDs undergoing whole body Muscle MRI from 7 Canadian and 7 international centers. It will develop a high-standard methodological approach for MRI diagnosis in this cohort, based on T1 weighted imaging characteristics, and will validate this method by testing the developed algorithm in a different cohort of patients. Muscle MRI scans will be collected by a well-established network of neuromuscular disease (NMD) centers to ensure comparability between the different centers.

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