磁共振联合磁敏感加权成像评估急性脑梗死的临床价值

目的:探讨磁共振成像（MRI）联合磁敏感加权成像（SWI）评估急性脑梗死预后的临床价值。方法:采用随机数字表法将100例急性脑梗死患者分为观察组（n=50）和对照组（n=50）。对照组行MRI检查，观察组行MRI联合SWI检查。比较两组患者的疾病检出率、脑微出血检出情况。结果:观察组疾病检出率显著高于对照组（96.0% vs 78.0%, P<0.05）；观察组脑微出血检出率显著高于对照组（64.0% vs 12.0%, P<0.05）；观察组的出血检出面积为（972.83±110.54） mm2，显著高于对照组的（532.71±110.53） mm2（P<0.05）。观察组脑梗死面积诊断评分显著小于对照组（P<0.05）。入院15 d后，观察组神经功能缺损程度评分明显低于对照组（P<0.05）；观察组神经功能缺损程度稳定率及好转率显著高于对照组（P<0.05）。结论:MRI联合SWI检查对急性脑梗死疾病的检出率明显较高，能够准确预测脑微出血，有助于制定正确的临床治疗方案，改善急性脑梗死患者的预后。

Clinical value of MRI combined with SWI in evaluating acute cerebral infarction

Abstract: Objective To analyze the clinical value of magnetic resonance imaging (MRI) combined with susceptibility-weighted imaging (SWI) in evaluating the prognosis of acute cerebral infarction. Methods A total of 100 patients with acute cerebral infarction were randomly divided into observation group (n=50) and control group (n=50). Patients in control group underwent MRI, while those in observation group underwent MRI combined with SWI. The detection rates of disease and cerebral microhemorrhage were compared between two groups. Results The detection rates of disease and cerebral microhemorrhage in observation group were significantly higher than those in control group (96.0% vs 78.0%, P<0.05 64.0% vs 12.0%, P<0.05). The bleeding area detected in observation group was (972.83±110.54) mm2, which was significantly larger than (532.71±110.53) mm2 in control group (P<0.05). The diagnostic score of cerebral infarction area in observation group was significantly lower than that in control group (P<0.05). Compared with those in control group, the neurological deficiency score 15 days after admission in observation group was lower (P<0.05), and the stable and improvement rates of neurological deficiency are significantly higher (P<0.05). Conclusion MRI combined with SWI not only has a significantly higher detection rate for acute cerebral infarction, but also can accurately predict cerebral microhemorrhage, which is helpful to formulate correct clinical treatment plan and improve the prognosis of patients with acute cerebral infarction.