论文部分内容阅读
目的探讨3.0 T超高场磁共振神经成像(MRN)对原发性周围神经肿瘤诊断的准确性及临床应用价值。方法搜集2011年6月至2012年6月经病理证实的52例原发性周围神经肿瘤患者的MR资料,所有患者均行常规MRI平扫及结合短T1反转恢复时间成像(3D-STIR)增强序列扫描。回顾性分析和评价3D-STIR增强扫描序列对原发性周围神经肿瘤诊断的可行性及准确性,比较常规MRI平扫及3D-STIR增强序列扫描对原发性周围神经肿瘤诊断的定位、定性的准确性和特异性。结果 52例患者中,神经鞘瘤32例,神经纤维瘤16例,神经纤维瘤病4例。所有患者的3D-STIR增强扫描序列像上均可清晰显示周围神经走行及病变同周围神经相关性,其中定位诊断准确率为100%,定性诊断准确率90.4%,特异性95.2%。3D-STIR增强序列同手术组定性结果一致性较好(Kappa=0.819)且明显优于常规MRI平扫。结论 3D-STIR增强扫描序列对原发性周围神经肿瘤病变的定位和定性诊断有重要的临床应用价值,值得推广。
Objective To investigate the diagnostic accuracy and clinical value of 3.0 T ultra high field magnetic resonance neuroimaging (MRN) for primary peripheral nerve tumors. Methods The MR data of 52 patients with pathologically confirmed primary peripheral nerve tumors from June 2011 to June 2012 were collected. All patients underwent conventional MRI and 3D-STIR combined with short T1 inversion recovery time imaging Serial scan. We retrospectively analyzed and evaluated the feasibility and accuracy of 3D-STIR enhanced scan in the diagnosis of primary peripheral neuroepithelial neoplasia. Compared the location and characterization of the diagnosis of primary peripheral nerve tumors by conventional MRI and 3D-STIR enhanced sequence scan The accuracy and specificity. Results Of the 52 patients, 32 were schwannoma, 16 were neurofibroma and 4 were neurofibromatosis. All patients with 3D-STIR enhanced scan sequence can be clearly displayed on the periphery of peripheral nerve lesions and peripheral nerve related to the localization of diagnostic accuracy of 100%, the diagnostic accuracy of 90.4%, a specificity of 95.2%. The 3D-STIR enhancement sequence was consistent with the qualitative results of the surgery group (Kappa = 0.819) and was significantly better than the conventional MRI. Conclusion 3D-STIR enhanced scan sequence has important clinical value in the localization and qualitative diagnosis of primary peripheral neuropathy. It is worth to be popularized.