磁共振诊断在脑静脉窦血栓中的应用价值观察

Observation on the application value of magnetic resonance imaging for the diagnosis of cerebral venous sinus thrombosis

目的探究脑静脉窦血栓中应用磁共振诊断的价值。方法76例脑静脉窦血栓患者,根据诊断方式不同分为对照组和研究组,各38例。对照组患者采取CT诊断,研究组患者采取磁共振诊断。比较两组患者诊断准确率,并分析两组患者的影像学特征。结果研究组诊断准确率97.37%高于对照组的78.95%,差异有统计学意义(P<0.05)。对照组CT影像学表现:38例患者中,显示界限不明显6例,静脉窦部位高密度影(呈片状)12例,对于存在出血症状患者,CT扫描发现病灶内有团块状、斑片状,且有11例患者出现索带征、12例患者出现高密度三角征、7例患者出现孔三角征。研究组磁共振影像学表现:38例患者中,累及上矢状窦14例、横窦10例、直窦8例、乙状窦6例。影像学显示静脉窦内信号不稳定,且累及处无流空特征。上矢状窦血栓患者T1WI表现为中等略高信号、T2WI为低信号,横窦血栓表现为短T1、短T2改变。上矢状窦累及横窦、乙状窦血栓患者,表现为短T1、长T2信号。结论脑静脉窦血栓诊断中应用磁共振诊断,准确率高,影像学清晰,成效显著,建议广泛推广应用。

Objective To investigate the value of magnetic resonance imaging for the diagnosis of cerebral venous sinus thrombosis.Methods A total of 76 patients with cerebral venous sinus thrombosis were divided into control group and research group according to different diagnosis methods,with 38 cases in each group.Patients in the control group were diagnosed by CT,and patients in the research group were diagnosed by magnetic resonance imaging.The diagnostic accuracy of the two groups was compared,and the imaging characteristics of the two groups were analyzed. Results The diagnostic accuracy 97.37% of the research group was higher than 78.95% of the control group, and the difference was statistically significant (P<0.05). CT imaging performance in the control group: among 38 patients, 6 cases showed inconspicuous boundaries, 12 cases showed high-density shadow (in the form of flakes) in the venous sinus area, and for patients with hemorrhagic symptoms, CT scans revealed masses and patches within the lesion, and 11 patients showed the cord band sign, 12 patients showed the high-density triangle sign, and 7 patients showed the hole triangle sign. Magnetic resonance imaging in the research group: of the 38 patients, the superior sagittal sinus was involved in 14 cases, the transverse sinus in 10 cases, the straight sinus in 8 cases, and the sigmoid sinus in 6 cases. The imaging showed signal instability in the venous sinuses and no flow-space features at the involvement. Patients with superior sagittal sinus thrombosis showed moderately high signal in T1WI and low signal in T2WI, and transverse sinus thrombosis showed short T1 and short T2 changes. Patients with superior sagittal sinus involvement and transverse sinus and sigmoid sinus thrombosis showed short T1 and long T2 signals. Conclusion In the diagnosis of cerebral venous sinus thrombosis, the application of magnetic resonance imaging is highly accurate, clear imaging and effective, and is recommended to be widely applied.