磁敏感加权成像在术前判断低级别及高级别胶质瘤价值研究  

The value research of susceptibility weighted imaging in the preoperative identification on low-grade and high-grade glioma

作　　者：任怡青[1] 王峥超[1] 朱彦[1] 

机构地区：[1]江苏大学附属医院影像科,江苏镇江212001

出　　处：《现代医药卫生》2013年第18期2737-2738,共2页Journal of Modern Medicine & Health

摘　　要：目的探讨磁敏感加权成像(SWI)在术前判断胶质瘤高、低级别中的应用。方法 2008年1月至2013年4月20例未经任何治疗、但被病理证实为胶质瘤患者术前均进行3.0 T高场磁共振成像(MRI)常规检查及SWI序列检查,影像信息由2名高年资医生进行诊断并对肿瘤内表现出的低信号及引流小静脉进行评分。结果 13例高级别胶质瘤患者中均可见低信号表现,7例低级别胶质瘤患者中仅4例出现了低信号表现,且高级别胶质瘤患者低信号评分(31分)明显高于低级别(7分),差异有统计学意义(Z=3.04,P<0.05);13例高级别胶质瘤患者中均可见引流小静脉,7例低级别胶质瘤患者中仅3例可见到引流小静脉,且高级别胶质瘤患者引流小静脉评分(31分)明显高于低级别(4分),差异有统计学意义(Z=4.14,P<0.05)。结论 SWI下的不同级别胶质瘤影像学表现差异明显,利于术前对胶质瘤的分级进行评估。Objective To explore the application of the susceptibility weighted imaging（SWI） in the preoperative iden- tification on low-grade and high-grade gliomas. Methods A total of 20 glioma patients without any treatnaent confirmed by pathology from January 2008 to April 2013 were check with routine inspection of 3.0 T high field strength magnetic resonance image （MRI） and sequential inspection of SWI, the imaging information was diagnosed by two senior doctors to score the low-intense signals and draining venules in glioma. Results The low-intense signals could be observed in all the 13 high-grade glioma pa- tients, the low-intense signals could be observed only in 4 eases from all the 7 low-grade glioma patients;the score of the high- grade glioma patients was significant higher than that of the low-grade gliomas patients （31 vs. 7） with statistically significant differ- enee（Z=3.04,P〈0.05）. The draining venules could be observed in all the 13 high-grade glioma patients but only 3 cases in all the 7 low-grade glioma patients,and the score of the high-grade glioma patients was significant higher than that of the low-grade glioma patients（31 vs. 4） with statistically significant differenee（Z=4.14,P〈0,05）. Conclusion The difference of imaging mani- festations in different gades of gliomas under SWI is significant, which is beneficial to evaluate the grade of the glioma before the operation.

关 键 词：磁共振成像 诊断技术和方法 星形细胞瘤 磁敏感加权成像 胶质瘤 

分 类 号：R81[医药卫生—放射医学]