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目的：评估增强后磁共振成像诊断椎管内神经瘤的特异性。材料和方法：对经外科手术的２０例椎管内神经瘤患者，回顾性比较分析病理和ＭＲＩ（包括Ｔ１加权成像、Ｔ２加权成像和静脉注射Ｇｄ－ＤＴＰＡ后Ｔ１加权成像）。结果：在Ｔ１加权像，与脊髓相比，呈均质低信号９例，不均质低信号１０例，不均质高信号１例；在Ｔ２加权像，２０例均示明显高信号（均质１３例，不均质７例）；静脉注射Ｇｄ－ＤＴＰＡ后Ｔ１加权成像，２０例均示明显强化，据其强化形态不同分为①均质强化８例；②明显不均质强化５例，病理上存在坏死囊变和陈旧性出血；③“煤渣状”不均质强化７例，病理上可能由不同量的ＡｎｔｏｎｉＡ和ＡｎｔｏｎｉＢ组织交互存在所造成或部分代表显微镜下见的微囊改变。结论：Ｔ１加权像呈低信号，Ｔ２加权呈明显的高信号，注射造影剂后出现明显的不均质强化和“煤渣状”不均质强化，是椎管内神经瘤的特征性ＭＲＩ征象。
Objective: To evaluate the specificity of enhanced magnetic resonance imaging in the diagnosis of intraspinal neuroma. Materials and Methods: Retrospective comparative analysis of pathological and MRI (including T1-weighted imaging, T2-weighted imaging, and T1-weighted imaging after intravenous Gd-DTPA) was performed on 20 patients with intraspinal neuroma treated with surgery. Results: In T1-weighted images, compared with the spinal cord, there were 9 cases of homogenous low signal, 10 cases of heterogeneous low signal, and 1 case of heterogeneous high signal; in T2-weighted images, 20 cases showed significant high signal (both Quality 13 cases, heterogeneous 7 cases); T1 weighted imaging after intravenous injection of Gd-DTPA, 20 cases showed significant enhancement, according to its enhanced form is divided into 1 homogeneous enhancement in 8 cases; 2 obvious heterogeneous homogeneity in 5 cases There were necrotic cystic changes and old hemorrhages in the pathology; 3 “cinder-like” inhomogeneous enhancement in 7 cases, which may be caused by the interaction of different amounts of AntoniA and AntoniB tissue in the pathology, or partially representing the change of microcapsules seen under the microscope. Conclusion: T1-weighted images are hypointensity, T2-weighted are obviously high signals, obvious inhomogeneous enhancement after injection of contrast agent, and “coal-like” inhomogeneous enhancement are the characteristic MRI features of intraspinal neuroma.