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Published on: January 12, 2019
Muscle MRI in Becker muscular dystrophy
Giorgio Tasca1, Elisabetta Iannaccone, Mauro Monforte
1Don Carlo Gnocchi Onlus Foundation, Italy.
Neuromuscular Disorders : NMD
|September 18, 2012
Summary
Becker muscular dystrophy (BMD) shows a distinct pattern of muscle MRI involvement, particularly in the gluteal and thigh muscles. Early MRI detection in asymptomatic patients aids diagnosis.
Area of Science:
- Neurology
- Radiology
- Genetics
Background:
- Becker muscular dystrophy (BMD) is a genetic neuromuscular disorder.
- Muscle MRI is a valuable tool for assessing muscle pathology.
- Understanding specific muscle involvement patterns in BMD is crucial for diagnosis and management.
Purpose of the Study:
- To evaluate pelvis and lower limb muscle MRI scans in patients with Becker muscular dystrophy (BMD).
- To identify distinct MRI patterns associated with disease severity in BMD.
- To explore the utility of MRI in detecting early or subclinical muscle changes in BMD.
Main Methods:
- Retrospective analysis of MRI scans from 46 patients with BMD.
- Patients were categorized by disease severity, from asymptomatic to ambulatory loss.
- Detailed assessment of muscle involvement in the pelvis and lower limbs.
Main Results:
- A consistent pattern of muscle involvement was observed, primarily affecting the gluteus maximus, gluteus medius, adductor magnus, biceps femoris long head, semimembranosus, and vasti muscles.
- This pattern was present in all 25 symptomatic patients.
- Milder changes were detected in 13 of 21 asymptomatic patients, while 8 asymptomatic patients had normal scans. Muscle involvement severity correlated significantly with age.
Conclusions:
- Becker muscular dystrophy exhibits a characteristic pattern of muscle involvement detectable via MRI.
- MRI can identify muscle changes in a subset of asymptomatic BMD patients.
- Early MRI findings may serve as a valuable diagnostic aid in the workup of BMD.
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