MRI扩散加权成像对急性脑梗死患者神经损伤程度的评估价值

Evaluate Value of Diffusion Weighted Imaging MRI in Evaluating the Degree of Nerve Damage in Patients with Acute Cerebral Infarction

目的:探究磁共振成像(magnetic resonance imaging,MRI)扩散加权成像(diffusion weighted imaging,DWI)对急性脑梗死患者神经损伤程度的评估价值。方法:回顾性选取2021年9月—2023年8月苏州市相城人民医院收治的150例急性脑梗死患者。根据NIHSS评分将其分为轻-中度组(65例)和重度组(85例)。两组均进行常规MRI检查和DWI检查。比较两组表观弥散系数(apparent diffusion coefficient,ADC)和相对表观扩散系数(relative apparent diffusion coefficient,rADC)、梗死病灶梗死体积和FLAIR血管高信号(FLAIR vascular hyperintensity,FVH)征评分。分析梗死体积、FVH征评分、ADC和rADC与急性脑梗死严重程度的相关性。分析梗死体积、FVH征评分、ADC对急性脑梗死患者病情严重程度的诊断价值。结果:重度组ADC与rADC均高于轻-中度组,差异有统计学意义(P<0.05)。重度组FVH征评分和梗死体积均高于轻-中度组,差异有统计学意义(P<0.05)。梗死体积、FVH征评分、ADC及rADC均与疾病严重程度呈正相关(P<0.001)。结论:MRI DWI对急性脑梗死患者神经损伤程度评估的准确度和敏感度高,具有较高诊断价值。

Objective:To explore the evaluate value of diffusion weighted imaging(DWI)magnetic resonance imaging(MRI)in evaluating the degree of nerve damage in patients with acute cerebral infarction.Method:A total of 150 patients with acute cerebral infarction treated in Suzhou Xiangcheng People's Hospital from September 2021 to August 2023 were retrospectively selected.According to NIHSS score,the patients were divided into mild-moderate group(65 cases)and severe group(85 cases).Both groups underwent routine MRI examination and DWI examination.The apparent diffusion coefficient(ADC)and relative apparent diffusion coefficient(ADC),infarct volume and FLAIR vascular hyperintensity(FVH)sign score of the two groups were compared.The correlation among infarct volume,FVH sign score,ADC and rADC and the severity of acute cerebral infarction was analyzed.The diagnostic value of infarct volume,FVH syndrome score and ADC on the severity of acute cerebral infarction was analyzed.Result:ADC and rADC in severe group was higher than that in mild-moderate group,and the difference was statistically significant(P<0.05).FVH sign score and infarct volume in severe group were higher than those in mild-moderate group,and the differences were statistically significant(P<0.05).Infarct volume,FVH sign score,ADC and rADC were positively correlated with disease severity(P<0.001).Conclusion:MRI DWI has high accuracy and sensitivity in evaluating the degree of nerve damage in patients with acute cerebral infarction,and has high diagnostic value.