【摘要】 目的 研究对出血性脑梗死患者再灌注出血情况采用磁敏感加权成像（SWI）检查的临床应用价值并对其检查结果进行影像学分析。方法 选取2020年1月至2021年3月江门市人民医院放射科收治的出血性脑梗死患者70例作为研究对象。所有患者均采用1.5 T超导MR成像仪进行检查，依次进行常规MRI平扫以及磁敏感加权成像检查。以数字减影血管造影技术（DSA）作为诊断金标准，比较不同MRI技术诊断效能、出血体积，并分析两种技术影像学特征。结果 磁敏感加权成像检查、常规MRI平扫敏感度比较，差异无统计学意义（P>0.05）。磁敏感加权成像检查出血脑梗死再灌注出血准确度、特异度高于常规MRI平扫准确性，差异有统计学意义（P<0.05）。磁敏感加权成像检查出血体积大于常规MRI平扫出血体积均值，差异有统计学意义（P<0.05）。结论 磁敏感加权成像检查对出血性脑梗死患者再灌注出血的准确性、特异度较高，可以尽可能完整扫描脑内出血范围，为临床治疗提供更加可靠的诊断结果，临床值得推广。更多还原

【Abstract】 Objective To study the clinical application value of susceptibility weighted imaging(SWI) for reperfusion hemorrhage in patients with hemorrhagic cerebral infarction and perform imaging analysis on the results. Methods From January 2016 to March 2021, a total of 70 patients with hemorrhagic cerebral infarction who were treated in the Department of Radiology, Jiangmen People′s Hospital were selected as the research objects. All patients were examined with a 1.5T superconducting MR imager, followed by regular MRI scans and magnetic sensitivity weighted imaging examinations. With digital subtraction angiography(DSA) as the diagnostic gold standard, the diagnostic efficiency and bleeding volume of different MRI technologies were compared, and the imaging characteristics of the two technologies were analyzed. Results There was no statistically significant difference in sensitivity between susceptibility weighted imaging and conventional MRI scans(P>0.05). The accuracy of susceptibility weighted imaging for hemorrhage, cerebral infarction, reperfusion, hemorrhage and specificity was higher than that of the accuracy of conventional MRI scans and the difference was statistically significant(P <0.05). The bleeding volume of magnetically weighted imaging was greater than that of conventional MRI scans the mean volume was, and the difference was statistically significant(P<0.05). Conclusion Susceptibility weighted imaging examination has high accuracy and specificity for reperfusion bleeding in patients with hemorrhagic cerebral infarction. It can scan the range of intracerebral hemorrhage as completely as possible, and provide more reliable diagnostic results for clinical treatment. It is clinically worthy of promotion.更多还原