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Three-dimensional imaging of lower limb neuropathies
Shivani Ahlawat1, John A Carrino2
1The Russell H. Morgan Department of Radiology & Radiological Science, The Johns Hopkins Medical Institutions, Baltimore, Maryland.
Seminars in Musculoskeletal Radiology
|March 13, 2015
Summary
High-resolution MRI, particularly three-dimensional (3D) imaging, enhances detection of peripheral nerve pathology. This technique improves visualization of lower limb neuropathies by identifying nerve caliber changes, anomalous course, and discontinuity.
Area of Science:
- Radiology
- Neurology
- Medical Imaging
Background:
- Peripheral nerve pathology diagnosis relies on MRI findings, including signal, course, and caliber alterations, alongside skeletal muscle denervation.
- Two-dimensional (2D) MRI sequences can detect nerve changes, but three-dimensional (3D) imaging offers superior characterization.
Purpose of the Study:
- To discuss the advantages of 3D MRI in diagnosing lower limb neuropathies.
- To review the normal anatomy of lower extremity nerves and common causes of peripheral neuropathy.
Main Methods:
- Utilizing high-resolution MRI, including 2D and 3D sequences.
- Detailed review of lower extremity nerve anatomy and pathology imaging features.
Main Results:
- 3D MRI is crucial for detecting and characterizing nerve pathologies like caliber changes at compression sites, anomalous nerve courses, and discontinuity.
- The study reviews normal anatomy and common etiologies of lower limb peripheral neuropathy.
Conclusions:
- 3D MRI provides significant benefits for the detection and characterization of peripheral nerve pathology in the lower extremities.
- Comprehensive understanding of anatomy and pathology imaging is essential for accurate diagnosis.
