Quantitative Muscle MRI of the Lower Extremities Reveals Different Patterns of Involvement in Classic Infantile and Young Late-Onset Pompe Patients
Muscle imaging identifies early damage in rare genetic disease before symptoms appear, improving monitoring during treatment.
Quantitative MRI in 20 young Pompe patients demonstrated phenotype-specific lower limb muscle involvement patterns: classic infantile patients show predominantly distal lower leg involvement while late-onset patients have proximal adductor thigh predominance, with implications for clinical monitoring and rehabilitation targeting. The combined fat fraction and T2water approach improves detection of early muscle involvement beyond conventional MRI, relevant for enzyme replacement therapy monitoring in this rare disease.
What the study was
- Study design
- Cross-sectional comparative study
- Population
- Pompe disease patients (classic infantile n=8, late-onset n=12) plus healthy controls (n=13); ages 6.5-27.3 years; Erasmus MC and Leiden UMC
- Sample size
- 20
- Category
- Diagnostics
- Maturity
- Exploratory
- Journal
- J Inherit Metab Dis
Why it surfaced
Rare disease with high unmet need; quantitative MRI phenotyping in Pompe disease supports precision monitoring of treatment response and phenotype-specific clinical management.
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