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Application of 3.0T MRI in brachial plexopathy combined use of 3D FIESTA-C and T2W IDEAL sequence |
HUANG Li-na, DING Qing-guo, LU Yong-ming, ZHANG Hong-qiang, QIAN Zheng |
Center of Imaging, the Second People’s Hospital of Changshu, Changshu Jiangsu 225500, China |
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Abstract Objective: To discuss the application value of 3.0T MRI in brachial plexopathy combined use of 3D FIESTA-C and T2W IDEAL sequence. Methods: ①Coronary scanning of short time inversion recovery sequence(STIR) and T2W IDEAL sequence were scanned on twenty volunteers using GE 3.0T magnetic resonance. The signal to noise ratio(SNR), contrast to noise ratio(CNR) and image motion artifact were evaluated on this two sequences. ②Twenty-five cases of brachial plexopathy were scanned on 3D FIESTA-C and IDEAL sequence besides general sequences, in which 9 cases underwent Gd-DTPA enhanced MRI. MRI of brachial plexus lesions were evaluated. Results: ①T2W IDEAL was better than STIR(5/20, 9/20) on the image motion artifact. Quantitatively, both SNR and CNR for IDEAL(45.3±12.6 and 27.1±12.1, respectively) were significantly higher(P<0.001) than those for STIR(17.4±6.1 and 8.2±4.7, respectively). ②The patients’ diseases comprised of: 4 cases of brachial plexus injury lesions(2 preganglionic and postganglionic brachial plexus injury respectively), 13 brachial plexus tumors(primary tumors including 3 neurofibromatosis, 6 schwannomas, 1 malignant nerve sheath tumor; secondary tumors including 3 metastases), 2 radiation neuropathy and acute brachial plexus neuritis respectively, and 4 multiple nerve sheath cysts. Conclusion: T2W IDEAL sequence can display postganglionic brachial plexus perfectly. Combined use of 3D FIESTA-C and T2W IDEAL sequence, the preganglionic and postganglionic brachial plexus lesions can be observed clearly and reliably.
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Received: 22 June 2016
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