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目的:探讨WHO(2000)I级脑膜瘤术前MR I瘤-脑界面特征及与其相关的病理学表现和临床意义。方法:观察30个病例的术前MR I脑脊液-血管周围间隙特征和瘤周脑水肿程度、术中肿瘤-脑界面手术分离度(Ilden分型)及术后相应部位脑组织病理学结果,对上述观察指标进行对照分析。结果:Ilden分型与T2W I瘤周水肿级别(P<0.05)、MR I脑脊液-血管周围间隙(P<0.05)显著相关;Ilden分型是预测肿瘤脑侵袭的重要参数(P<0.05);T2W I瘤周水肿级别与肿瘤脑侵袭之间存在显著差异(P<0.05);MR I脑脊液-血管周围间隙不清晰则脑侵袭存在几率增加(P<0.05)。结论:术前依据瘤周水肿级别(MR I T2W I)、MR I脑脊液-血管周围间隙,可以预测瘤-脑手术分离度(Ilden分型)和肿瘤是否存在脑侵袭。
Objective: To investigate the characteristics of preoperative MR1 tumor-brain interface of WHO (2000) class I meningiomas and the related pathological features and clinical significance. Methods: Thirty patients with preoperative MR I cerebrospinal fluid - perivascular clearance characteristics and the degree of peritumoral edema, tumor - brain interface operation resolution (Ilden classification) and postoperative brain histopathological results, the right The above indicators for controlled analysis. Results: The Ilden classification was significantly associated with tumor peritumoral edema (P <0.05) and CSF - perivascular space (P <0.05) of T2WI. Ilden classification was an important parameter for predicting brain invasion (P <0.05). There was a significant difference (P <0.05) between T2WI level of tumor edema and brain tumor invasion (P <0.05). CONCLUSIONS: Preoperative tumor-brain surgery resolution (Ilden typing) and brain tumor invasion can be predicted based on MR I T2W I and CSF-CSF clearance.