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Nerve Ultrasound Protocol to Detect Dysimmune Neuropathies
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MRI and US of Normal and Abnormal Digital Nerves
Roddie Moraes Neto1, Eduarda C B A Bernal1, Alex Carvalho Dias1
1Department of Radiology, Hospital Sírio-Libanês, Rua Adma Jafet 91, São Paulo, SP 01308-050, Brazil.
Summary
Imaging digital nerves is challenging but crucial for diagnosing injuries and conditions affecting fingers and toes. High-frequency ultrasound (US) and MRI are key tools for visualizing these small nerves and guiding patient management.
Area of Science:
- Radiology
- Neuroimaging
- Anatomy
Background:
- Digital nerves are vital for sensation in extremities.
- Nerve injury, inflammation, or entrapment cause pain and sensory loss.
- Imaging these small nerves is technically difficult due to their size and location.
Purpose of the Study:
- To provide a comprehensive review of digital nerve imaging.
- To discuss key pathologic conditions affecting digital nerves.
- To emphasize imaging techniques and protocols for accurate diagnosis.
Main Methods:
- Review of case-based examples of digital nerve pathology.
- Discussion of high-frequency ultrasound (US) and MRI techniques.
- Emphasis on anatomic considerations for optimal nerve visualization.
Main Results:
- Traumatic injuries are the most common digital nerve lesions.
- MRI, including MR neurography, is valuable for complex cases.
- Interdigital neuromas are common in the foot, characterized by perineural fibrosis.
Conclusions:
- Accurate digital nerve evaluation requires specialized knowledge and optimized imaging protocols.
- US and MRI are essential for diagnosing digital nerve injuries and pathologies.
- This review aids clinicians in managing patients with digital nerve lesions.
