Contrast-enhanced magnetic resonance neurography for diagnosing brachial plexopathy: improved visualization and
Wenjun Wu1,2, Yuhong Ding3, Yu Su4
1Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, 430022, Hubei, China. wuhan_wuwj@163.com.
Scientific Reports
|September 5, 2024
Summary
Contrast-enhanced magnetic resonance neurography significantly improves visualization of the brachial plexus (BP) and aids in diagnosing BP conditions. This technique enhances nerve visibility and reveals crucial imaging features for accurate classification.
Area of Science:
- Radiology
- Neuroimaging
- Medical Diagnostics
Background:
- Brachial plexopathy diagnosis can be challenging.
- Contrast-enhanced magnetic resonance neurography (CE-MRN) offers potential for improved nerve visualization.
Purpose of the Study:
- To validate the efficacy of CE-MRN in enhancing brachial plexus (BP) imaging.
- To assess CE-MRN's performance across diverse patient cohorts with brachial plexopathy.
Main Methods:
- Seventy-one subjects (19 volunteers, 52 patients) underwent CE-MRN and plain MRN.
- Two radiologists qualitatively assessed nerve visibility; quantitative metrics (SI, CNR, CR) were measured.
- Patient classification used the Neuropathy Score Reporting and Data System (NS-RADS).
Main Results:
- CE-MRN significantly improved BP visualization and nerve-tissue contrast in all groups.
- Additional features like hypointense signals and neoplastic enhancements were identified with CE-MRN.
- CE-MRN effectively reduced muscle edema and vascular contamination, aiding precise injury classification.
Conclusions:
- CE-MRN consistently enhances brachial plexus visualization.
- CE-MRN provides valuable imaging features for accurate diagnosis of brachial plexopathy.
- This technique improves diagnostic confidence and classification of various brachial plexopathy types.
