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| Diagnosis of brachial plexopathy by MR 3D STIR SPACE and True FISP sequence |
| Department of Radiology, Beijing Jishuitan Hospital, Beijing 100035, China |
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Abstract Objective: To investigate the value of MR 3D STIR SPACE and True FISP techniques in diagnosis of brachial plexus lesions. Methods: Twenty-eight cases of brachial plexus disease (including 20 cases of brachial plexus injury, 3 cases of thoracic outlet syndrome and 5 cases of brachial plexus tumors) were examined by 1.5T Siemens magnetic resonance. All cases were scanned by both 3D STIR SPACE and 3D TRUE FISP sequences. Comparative diagnosis of MR imaging and surgical results was performed. Results: The direct signs of brachial plexus preganglionic injury included absence or rupture of nerve root and indirect signs included deformation of dural sac, post-traumatic spinal meningocele. Signs of postganglionic brachial plexus injury included thickening, tortuosity or edema of brachial plexus and soft tissue edema. There were 23 cases with 115 brachial plexus roots in total. MR imaging in diagnosis of brachial plexus injury showed 81.97% in the sensitivity, 84.78% in the specificity, and 84.78% in the accuracy. Five cases of brachial plexus tumors confirmed by surgery were diagnosed correctly by MRI. Conclusion: Combination of 3D STIR SPACE and True FISP sequences can clearly display the postganglionic and preganglionic brachial plexus lesions and those protocols are valuable in diagnosis of branchial plexopathy.
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Received: 04 January 2016
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2016, Vol. 27 
