3D-TOF MRA序列在颅内静脉窦血栓中的协助诊断价值  

Supplementary Value of 3D-time of Flight MR Angiography in Diagnosing Cerebral Venous Sinus Thrombosis

作　　者：安攀 赵沙沙 梁寿衡 崔光彬 雷学斌 AN Pan;ZHAO Sha-sha;LIANG Shou-heng;CUI Guang-bin;LEI Xue-bin*(Department of Radiology,the Second Affiliated Hospital of Air Force Military Medical University,Xi'an 710038,Shaanxi Province,China)

机构地区：[1]空军军医大学第二附属医院放射科,陕西西安710038

出　　处：《中国CT和MRI杂志》2023年第11期18-20,共3页Chinese Journal of CT and MRI

摘　　要：目的探讨颅内静脉窦血栓(CVST)的临床诊断中,使用三维时间飞跃法磁共振血管成像(3D-TOF MRA)协助诊断的临床应用价值。方法选取我院22例CVST患者,共154个静脉窦节段的MRI资料。分析3D-TOF MRA CVST信号特点,评估3D-TOF MRA对CVST显示的价值。结果以DSA结果为标准,22例共发现存在CVST的静脉窦节段67个,PC-MRV正确识别57个,3D-TOF MRA正确识别54个。3D-TOF MRA上CVST可表现为等信号(13个)、高信号(35个)或混杂信号(6个),同时发现10例受累静脉窦邻近脑实质的改变,5例受累静脉窦引流区周围出现小血管影。ROC曲线分析显示PC-MRV曲线下面积(AUC)为0.897,3D-TOFMRAAUC为0.880。结论3D-TOFMRA序列对CVST的检出有一定的诊断效能,在时间紧迫、缺乏相关序列的情况下,其异常信号有助于协助CVST的诊断,提高检出率,从而减少漏诊的发生。Objective To investigate the supplementary value of 3D-time of flight magnetic resonance angiography(3D-TOF MRA)in diagnosis of cerebral venous sinus thrombosis(CVST).Methods MRI data of 154 venous sinus segments in 22 patients with CVST in our hospital were selected.The characteristics of 3D-TOF MRA CVST signal were analyzed,and the value of 3D-TOF MRA for CVST display was evaluated.Results According to the DSA results,a total of 67 sinus segments with CVST were found in 22 cases,57 were correctly identified by PC-MRV and 54 were correctly identified by 3D-TOF MRA.On 3D-TOF MRA,CVST showed isosignal(13),high signal(35)or mixed signal(6).At the same time,changes in the parenchyma near the affected sinus were found in 10 cases,and small vascular shadow around the drainage area of the affected sinus was found in 5 cases.ROC curve analysis showed that the area under curve(AU C)of PC-MRV was 0.897,and the AU C of 3D-TOF MRA was 0.880.Conclusion 3D-TOF MRA sequence has certain diagnostic efficacy in the detection of CVST,in the case of time constraints and lack of relevant sequences,its abnormal signals can help to diagnose CVST,improve the detection rate,and thus reduce the occurrence of missed diagnosis.

关 键 词：磁共振成像 窦血栓形成 颅内 脑静脉 

分 类 号：R445.3[医药卫生—影像医学与核医学]