磁敏感加权成像在脑外伤所致精神障碍原因分析中的应用

Value of SWI in Analyzing the Causes of Mental Disorders Caused by Traumatic Brain Injury

目的:探索磁敏感加权成像(SWI)在脑外伤所致精神障碍者精神伤残评定中的运用价值。方法:对56例脑外伤所致精神障碍者行T1加权、T2加权、液体衰减反转恢复(T2 Flair)、磁共振弥散加权成像(DWI)及SWI扫描,并对其影像进行分析,对比各种方法显示病灶的数目、范围的效果。结果:56例患者中,T1加权成像显示病灶181个,检出率为50.00%(28/56);T2加权成像显示病灶185个,检出率为50.00%(28/56);T2 Flair成像显示病灶185个,检出率为50.00%(28/56);DWI成像显示病灶186个,检出率为55.36%(31/56);SWI成像显示病灶883例,检出率为80.36%(45/56),其中16例病灶为SWI特有,在其他序列上未显示。结论:SWI能明显提高脑外伤所致精神障碍者病灶的检出率,为正确的脑外伤后伤残评定提供客观依据。

Purpose： To explore the value of SWI （susceptibility-weighted imaging） in evaluation of people with mental disabilities caused by traumatic brain injury. Methods： Fifty-six cases of patients with mental disorder caused by traumatic brain injury were enrolled. They were all undergone with T1WI, T2WI Flair, DWI and SWI scans. The number and location of the lesions detected by these scans were analyzed and compared. Results： In these 56 cases, T1WI showed 181 lesions, the detection rate was 50.00% （28/56）, T2WI showed 185 lesions, the detection rate was 50.00% （28/56）, T2 Flair showed 185 lesions, the detection rate was 50.00% （28/56）, DWI showed 186 lesions, the detection rate was 55.36% （31/56）, SWI showed 883 lesions, the detection rate was 80.36% （45/56）, among them, lesions inl6 patient were displayed on the SWI only. Conclusion： SWI can be used to increase the lesion detection rate in patients with mental disorders caused by traumatic brain injury, and it can provide objective basis for the brain injury disability evaluation.