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Quantitative Magnetic Resonance Imaging of Skeletal Muscle Disease
Published on: December 18, 2016
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Localization and quantification of intramuscular damage using statistical parametric mapping and skeletal muscle
Alexandre Fouré1, Arnaud Le Troter1, Maxime Guye1,2
1Aix-Marseille Université, CNRS, CRMBM, UMR 7339, 13385, Marseille, France.
Scientific Reports
|December 23, 2015
Summary
A new method accurately maps skeletal muscle damage using spatial normalization and statistical parametric mapping (SPM). This technique precisely quantifies muscle alterations, aiding diagnosis and treatment assessment for muscle diseases.
Area of Science:
- Biomedical Engineering
- Radiology
- Sports Medicine
Background:
- Skeletal muscle damage assessment is crucial for diagnosing diseases and evaluating treatments.
- Current methods may lack the precision to detect subtle intramuscular alterations.
- Advanced imaging analysis techniques are needed for accurate quantification.
Purpose of the Study:
- To develop and validate a novel methodology for precise localization and quantification of skeletal muscle damage.
- To investigate the spatial and temporal patterns of muscle alterations following electrically-evoked contractions.
Main Methods:
- Combined spatial normalization of skeletal muscle MRI images with statistical parametric mapping (SPM) analysis.
- Utilized a specific parcellation strategy for detailed analysis of the quadriceps femoris.
- Acquired T2 maps of thigh muscles before and at two (D2) and four (D4) days post-exercise in 25 healthy males.
Main Results:
- The methodology successfully detected alterations in superficial and distal vastus medialis (VM) at both D2 and D4.
- Deeper regions of the vastus lateralis showed a significantly higher proportion of altered muscle at D4 compared to D2 (35% vs. 18%).
- Superficial vastus lateralis alterations remained consistent between D2 and D4 (23% vs. 17%).
Conclusions:
- The proposed methodology offers a robust approach for detecting subtle skeletal muscle damage.
- This technique is valuable for diagnosing muscle diseases and assessing therapeutic interventions.
- The findings highlight differential damage patterns within the quadriceps femoris, with deeper vastus lateralis being more affected later post-exercise.
