CAJ | 학술논문

目的：分析侧脑室内脑膜瘤的MRI表现，以提高对该病的术前定性诊断。方法回顾性分析15例经手术病理证实的侧脑室内脑膜瘤患者的MRI表现，采用SIEMENS 3.0T Skyra和GE 1.5T Signal磁共振仪，均行平扫及增强扫描，图像由2名以上主治医师在影像存档与通信系统（PACS）上观察。结果本组病例均为单发，其中左侧脑室三角区9例、右侧脑室三角区4例、右侧脑室体部2例。病灶边缘清楚，13例为分叶状、2例为椭圆形。多数病灶T1WI呈等或低信号，T2WI呈稍高信号，有钙化时信号减低。病灶较大，灶周水肿较轻。增强扫描病灶呈明显不均匀强化。结论侧脑室内脑膜瘤在MRI上表现特点为：多发生于侧脑室三角区；发现时病灶较大，边缘清晰；灶周水肿较轻；增强扫描后病灶明显不均匀强化。MRI具有多方位成像特点，可为脑膜瘤术前提供更准确的影像信息。
목적：분석측뇌실내뇌막류적MRI표현，이제고대해병적술전정성진단。방법회고성분석15례경수술병리증실적측뇌실내뇌막류환자적MRI표현，채용SIEMENS 3.0T Skyra화GE 1.5T Signal자공진의，균행평소급증강소묘，도상유2명이상주치의사재영상존당여통신계통（PACS）상관찰。결과본조병례균위단발，기중좌측뇌실삼각구9례、우측뇌실삼각구4례、우측뇌실체부2례。병조변연청초，13례위분협상、2례위타원형。다수병조T1WI정등혹저신호，T2WI정초고신호，유개화시신호감저。병조교대，조주수종교경。증강소묘병조정명현불균균강화。결론측뇌실내뇌막류재MRI상표현특점위：다발생우측뇌실삼각구；발현시병조교대，변연청석；조주수종교경；증강소묘후병조명현불균균강화。MRI구유다방위성상특점，가위뇌막류술전제공경준학적영상신식。
Objective To investigate the value of MRI in the diagnosis of lateral intra ventricular meningioma.Methods A total of 15 patients with lateral intra ventricular meningioma were performed plain scanning and contrast-enhanced scanning with gadopentetate dimeglumine (Gd-DTPA) (0.1 mmol/kg) by SIEMENS 3.0T Skyra and GE Signal HDx 1.5T MRI Scanner. Results Tumors were located in the lateral ventricle trigone in 13 cases, and in the body of right lateral ventricle in 2 cases. The signal density was equal or lower on T1WI, and a little higher on T2WI. The signal density of calcification was lower. Most of the lesions were large with slight edema around. The lesions exhibited heterogeneous enhancement.Conclusion MRI manifestation of lateral intra ventricular meningioma is characteristic. Most of them are located in the lateral ventricle trigone. They are large with slight lobula in shape and clear boundary, and exhibit heterogeneous enhancement. MRI plays an important role in the diagnosis of lateral ventricular meningioma.