CAJ | 학술논문

目的：分析侧脑室室管膜下瘤的MRI影像学表现，以提高对本病MRI征象的认识。方法对2007年1月-2013年6月6例经手术病理证实的室管膜下瘤患者的临床和影像学资料进行回顾性分析。结果6例患者中，男4例，女2例，主要表现为头痛、头昏；病灶位于右侧脑室3例，左侧脑室2例，双侧脑室前部1例；和脑白质相比肿瘤T1WI呈等或稍低信号，T2WI呈稍高信号，DWI呈等或稍低信号，T2WI-FLAIR呈高信号；增强扫描：大部分病灶无强化或轻度强化；磁共振波谱（MRS）：符合良性肿瘤波谱特征，表现为NAA峰轻度降低，Cho峰正常。结论侧脑室室管膜下瘤MRI表现具有一定的特征性，MRI多方位成像可对肿瘤明确定位，并有助于定性诊断。
목적：분석측뇌실실관막하류적MRI영상학표현，이제고대본병MRI정상적인식。방법대2007년1월-2013년6월6례경수술병리증실적실관막하류환자적림상화영상학자료진행회고성분석。결과6례환자중，남4례，녀2례，주요표현위두통、두혼；병조위우우측뇌실3례，좌측뇌실2례，쌍측뇌실전부1례；화뇌백질상비종류T1WI정등혹초저신호，T2WI정초고신호，DWI정등혹초저신호，T2WI-FLAIR정고신호；증강소묘：대부분병조무강화혹경도강화；자공진파보（MRS）：부합량성종류파보특정，표현위NAA봉경도강저，Cho봉정상。결론측뇌실실관막하류MRI표현구유일정적특정성，MRI다방위성상가대종류명학정위，병유조우정성진단。
Objective Analysis of MRI image of lateral ventricular subependymomas to improve our recognition of radiology manifestation of the disease. Methods Clinical data and MRI findings of 6 patients with subependymomas proved by surgical pathology, observed from January 2007 to June 2013, were analyzed retrospectively. Results Six patients (4 males and 2 females) presented with headache and dizziness. Among these 6 patients, tumor developed in right lateral ventri-cle in three patients, in left lateral ventricle in 2 patients and in frontal of dual lateral ventricle in one patient. In MRI image, tumors showed iso-intense to hypointense to normal white matter on T1-weighted and DWI images, hyperintense on T2-weighted and FLAIR. Mild or no enhancement was noted in most cases. MRS showed findings consistent with low-grade tu-mor, with a normal choline peak and depressed N-acetyl-aspartate peak. Conclusion Lateral ventricular subependymo-mas have characteristic MRI features and multi-direction images are helpful for diagnosis.