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11例胚胎发育不良性神经上皮瘤的MRI及MR波谱分析 被引量:2

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摘要 目的探讨胚胎发育不良性神经上皮瘤(DNT)的磁共振成像(MRI)及磁共振波谱(MRS)特点。方法回顾性分析11例经手术病理证实的DNT患者的临床及影像资料,所有患者术前均行MRI平扫及增强扫描,其中6例行MRS分析。结果所有病灶均位于幕上皮层,额、颞叶各4例,顶叶3例。病灶呈脑回状、类圆形或类三角形,以T1WI低、T2WI高信号为主,其中4例呈结节状和囊状混杂信号。所有病灶周围未见明显水肿或占位效应。11例中4例(36.4%)有结节状或环形强化。MRS分析显示:病灶区胆碱(Cho)峰和肌酸(Cr)峰改变不明显,N-乙酰天门冬氨酸(NAA)峰较正常对照降低,但差异无统计学意义(P>0.05)。结论 DNT在常规MRI上具有良性肿瘤的特点,结合MRS分析有助于做出正确的术前诊断。
出处 《重庆医学》 CAS 北大核心 2016年第19期2686-2689,共4页 Chongqing medicine
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参考文献15

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二级参考文献15

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