头颅CT联合MRI-DWI对急性脑梗死的评估分析
Evaluation and analysis of head CT combined with MRI-DWI in acute cerebral infarction
于佳浩 1甄瑾 2韩雪 1张剑男 1程跃音1
作者信息
- 1. 内蒙古自治区人民医院 影像医学科 内蒙古 呼和浩特 010017
- 2. 内蒙古自治区人民医院 神经内科 内蒙古 呼和浩特 010017
- 折叠
摘要
目的 探讨头颅CT联合MRI-DWI对急性脑梗死的评估价值.方法 选取 150 例就诊时症状符合急性脑梗死患者,所有患者均接受数字减影血管造影(DSA)、电子计算机X线断层扫描(CT)、磁共振成像弥散加权成像(MRI-DWI),以DSA作为金标准,根据金标准诊断结果将患者分为梗死组、其他疾病组,对比两组患者的头颅CT、MRI-DWI影像学参数,分析其对急性脑梗死的评估效能.结果 150 例疑似急性脑梗死患者经DSA确诊 128 例,占 85.33%.相较于其他疾病组,梗死组的CT值、ADC值与DCavg值较低,差异有统计学意义(P<0.05).绘制受试者操作特征曲线(ROC),结果显示,CT值、ADC值评估急性脑梗死有一定效能,且联合评估效能较高.以DSA作为金标准,经ROC得到各参数评估急性脑梗死的最佳阈值,根据阈值判定评估结果.结果 显示,头颅CT检查对急性脑梗死检出率为 79.69%(102/128),MRI-DWI检出率为 86.72%(111/128),联合检出率为 94.53%(121/128),联合检出率更高,且联合检查的敏感度高于单独检查,其准确率、阴性预测值高于头颅CT检查,差异有统计学意义(P<0.05),联合检查与金标准的一致性更强.结论 头颅CT联合MRI-DWI可有效评估急性脑梗死,且与金标准有较好的一致性,有一定应用价值.
Abstract
Objective To explore the evaluation value of head CT combined with MRI-DWI for acute cerebral infarction.Methods A prospective study was conducted on 150 suspected acute cerebral infarction patients with symptoms consistent with acute cerebral infarction.All patients underwent digital subtraction angiography(DSA),cranial computed tomography(CT),and magnetic resonance imaging(MRI)diffusion-weighted imaging(DWI).DSA was used as the gold standard,and patients were divided into infarction group and other disease group based on the diagnostic results of the gold standard.The imaging pa-rameters of cranial CT and MRI-DWI were compared between the two groups to analyze their evaluation efficacy for acute cere-bral infarction.Results Among 150 patients with suspected acute cerebral infarction,128 cases were diagnosed by DSA,ac-counting for 85.33%.Compared with other disease groups,the CT value,ADC value and DCavg value of the infarction group were lower(P<0.05).Receiver operating characteristic(ROC)curves were drawn,and the results showed that CT values and ADC values had certain efficacy in evaluating acute cerebral infarction,and the combined evaluation had higher efficacy.DSA was used as the gold standard,the optimal threshold for evaluating acute cerebral infarction was obtained through ROC.Based on the threshold judgment,the evaluation results showed that the detection rate of acute cerebral infarction in head CT examination was 79.69%(102/128),the detection rate of MRI-DWI was 86.72%(111/128),and the combined detection rate was 94.53%(121/128).The combined detection rate was higher,and the sensitivity of the combined examination was higher than that of the individual examination.Its accuracy and negative predictive value were higher than those of head CT examination(P<0.05).The consistency between the combined examination and the gold standard was stronger.Conclusion The combination of head CT and MRI-DWI can effectively evaluate acute cerebral infarction,and has good consistency with the gold standard,which has cer-tain application value.
关键词
急性脑梗死/体层摄影术,X线计算机/磁共振成像/评估Key words
Acute cerebral infarction/Tomography,X-ray computed/Magnetic resonance imaging/Evaluation引用本文复制引用
基金项目
内蒙古自治区卫生健康科技计划项目(202201029)
出版年
2024
NETL
NSTL
万方数据