CT和MRI影像在脑膜瘤诊断中的临床意义  

Research on clinical significance of meningioma diagnosis in radiological expression of CT and MRI

作　　者：孟庆梅[1] 丁甫成 

机构地区：[1]青岛市第三人民医院放射科,山东青岛266041

出　　处：《中国医学装备》2016年第3期54-57,共4页China Medical Equipment

摘　　要：目的:探讨良性和恶性脑膜瘤的CT和MRI影像学表现,为临床手术方案的确定提供可靠的依据。方法:对40例脑膜瘤的影像学资料及病理学资料进行回顾性分析,通过脑膜瘤的形态、边缘、信号和密度、瘤周水肿、肿瘤钙化、肿瘤多发以及瘤-脑组织界面等影像学表现判断脑膜瘤的良性与恶性。结果:1肿瘤信号或密度:T1信号不均6例(占15.0%),T2信号不均8例(占20.0%),T1及T2信号均匀26例(占65.0%),CT密度不均15例(占37.5%),均匀25例(占62.5%);2肿瘤边缘:规整27例(占67.5%),毛糙、不规则、分叶及有壁结节13例(占32.5%);3硬膜尾征36例(占90.0%);4颅骨受侵6例(占15.0%);5肿瘤内钙化7例(占17.5%);6瘤周水肿14例(占35.0%);7肿瘤多发6例(占15.0%);8增强表现:明显均匀强化27例(占67.5%),明显不均匀强化13例(占32.5%)。结论:对良性和恶性脑膜瘤患者,术前可根据肿瘤的CT和MRI影像学表现对其治疗和预后进行评估。Objective： To study CT and MRI radiological expression of benign and malignant meningiomas to provide a reliable evidence for clinical surgery scheme determination. Methods： The radiological and pathological data of 40 cases with meningiomas undergoing surgery in hospital were analyzed, and the benign and malignant lesions of meningiomas were judged according to imaging features such as meningioma shape, edge, signal or density, peritumorous edema, intratumorous calcification, multiple tumors, tumor brain interface status etc. Results：（1）Tumor signal or density： T1 signal inhomogeneous in 6 cases（15.0%）, T_2 signal inhomogeneous in 8 cases（20.0%）, the signal homogeneous in 26 cases（65.0%）, CT density is inhomogeneous in 15 cases（37.5%）, CT density is homogeneous in 25 cases（62.5%）;（2）Tumor edge： regular in 27 cases（67.5%）, coarse, irregular, lobulated, with mural nodules in 13 cases（32.5%）;（3）Dural tail sign in 36 cases（90.0%）;（4）Skull invasion in 6 cases（15.0%）;（5）Calcification within the tumor in 7 cases（17.5%）;（6）Peritumoral edema in 14 cases（35.0%）;（7）Multiple tumors in 6 cases（15.0%）;（8）Enhance performance： Obvious homogeneous enhancement in 27 cases（67.5%）, Obvious inhomogeneous enhancement in 13 cases（32.5%）. Conclusion： Benign and malignant meningiomas with a certain radiological feature, the curative effect and prognosis may be properly evaluated by the radiological expression of meningiomas.

关 键 词：良性和恶性 脑膜瘤 磁共振成像 X线CT 

分 类 号：R739.45[医药卫生—肿瘤]