兴趣区高分辨率三维增强磁共振血管成像评价窦旁脑膜瘤  

Evaluation of sinus meningiomas in the region of interest by high-resolution three dimensional contrast-enhanced magnetic resonance venography

作　　者：陈建强[1] 韩向君[1] 史克珊[2] 关莹[3] 战跃福[1] 李小华[3] 李香营[1] 聂柳[2] 

机构地区：[1]中南大学湘雅医学院附属海口医院放射科,海口570208 [2]中南大学湘雅医学院附属海口医院神经外科,海口570208 [3]海南医学院附属医院影像教研室,海口570208

出　　处：《中南大学学报（医学版）》2012年第2期203-207,共5页Journal of Central South University ：Medical Science

基　　金：海南省自然科学基金(808246)~~

摘　　要：目的:探讨兴趣区高分辨率三维增强磁共振血管成像(3D contrast enhanced magnetic resonance venography,3D CE-MRV)技术在评价窦旁脑膜瘤静脉窦改变的应用价值。方法:20例窦旁脑膜瘤患者术前(包括9例术后)进行兴趣区高分辨率3D CE-MRV检查,应用多平面重组(multiplanar reformations,MPR)、最大密度投影(maximum intensity projection,MIP)三维重建技术对瘤旁静脉窦改变进行观察。结果:所有病例皆获得高分辨率图像,单次成像时间约11.4 s,体素值约1.3 mm3,术前20例图像皆清晰显示窦腔改变情况,其中6例窦腔完整、通畅,14例静脉窦不同程度受侵,包括5例窦腔完全闭塞,9例狭窄;术后9例图像显示4例窦腔通畅,1例狭窄、中断,4例静脉窦切除。结论:应用兴趣区内高分辨率3D CE-MRV对窦旁脑膜瘤进行静脉窦成像,可在短时间内获得高分辨率图象,清晰显示瘤体与静脉窦的关系以及静脉窦的侵及程度,为手术治疗提供帮助,并可评价术后静脉窦改变。Objective： To determine the value of high-resolution three dimensional contrast enhanced magnetic resonance venography （3D CE-MRV） in evaluating sinus meningiomas in the region of interest （ROI）. Methods： Twenty patients with sinus meningiomas underwent 3D CE-MRV with ROI preoperatively （including 9 patients postoperatively）. We observed the changes of venous sinus adjacent the tumor. Results： All patients received high-resolution image, the single acquisition time was about 11.4 s, and the voxel value was about 1.3 mm3.The images of 20 patients showed the change of the sinus clearly, 6 of which with integral sinus, 14 with sinus invaded at various degrees, including 5 with sinus occlusion and 9 with stenosis. CE-MRV also showed 4 patients with clear sinuses, 1 with narrow sinus, partial interruption, and 4 with sinus removed after the surgery.Conclusion： Application of high-resolution 3D CE-MRV in ROI in sinus meningiomas may help obtain a series of high-resolution images in a short time, show the relationship between the tumor and venous sinus, display the degree of invasion of venous sinus clearly, provide information for the surgical treatment, and evaluate the change of sinus after the surgery.

关 键 词：脑膜瘤 血管造影术 磁共振 兴趣区 高分辨 

分 类 号：R739.4[医药卫生—肿瘤]