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Ultrasound accuracy for brachial plexus pathology
S W Y Yip1, J F Griffith1, C S L Tong1
1Department of Imaging and Interventional Radiology, The Chinese University of Hong Kong, Prince of Wales Hospital, 30-32 Ngan Shing Street, Shatin, Hong Kong.
Clinical Radiology
|April 21, 2024
Summary
Ultrasound accurately detects brachial plexus pathology with 98% efficacy, matching MRI. This makes ultrasound a valuable initial imaging tool for suspected brachial plexus conditions.
Area of Science:
- Radiology
- Neurology
- Musculoskeletal Imaging
Background:
- Brachial plexus pathology can be challenging to diagnose.
- Accurate imaging is crucial for effective treatment planning.
Purpose of the Study:
- To evaluate the accuracy of ultrasound in diagnosing brachial plexus pathology.
- To compare ultrasound's advantages and limitations against MRI for brachial plexus imaging.
Main Methods:
- 143 patients with suspected brachial plexus pathology underwent both ultrasound and MRI.
- Final diagnosis was confirmed by ultrasound, MRI, clinical follow-up, and surgical findings.
- Ultrasound accuracy was assessed against the final diagnosis.
Main Results:
- Ultrasound demonstrated 98% diagnostic accuracy for brachial plexus pathology.
- Sensitivity was 94%, specificity 100%, PPV 100%, and NPV 97%.
- Common pathologies included post-radiation fibrosis, nerve sheath tumors, and traumatic injuries.
Conclusions:
- Ultrasound is a highly accurate and specific imaging modality for brachial plexus pathology.
- It shows diagnostic efficacy comparable to MRI.
- Ultrasound is recommended as a first-line investigation for suspected brachial plexus conditions.
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