摘要
目的:探讨磁共振弥散加权成像技术(DWI)与磁共振液体衰减反转恢复(FLAIR)序列在急性脑梗死(ACI)诊断中的临床应用价值。方法:回顾性分析2023年5月—2024年8月单县中心医院收治的97例疑似ACI患者资料。所有患者均接受DWI与FLAIR检查,并以临床综合诊断结果作为金标准进行对比分析。比较各检查方法与金标准之间的诊断一致性,评估DWI与FLAIR单独及联合使用的诊断效能,对比ACI阳性及阴性患者的DWI相关参数。结果:经临床综合诊断,97例患者中确诊ACI阳性63例,阴性34例。DWI与FLAIR联合检查的Kappa值为0.955,高于DWI的0.663和FLAIR的0.667。DWI与FLAIR联合检查的灵敏度为96.83%,特异度为100.00%,准确性为97.94%,阳性预测值为100.00%,阴性预测值为94.44%,高于DWI单独检查的87.30%、79.41%、84.54%、88.71%、77.14%,和FLAIR单独检查的85.71%、82.35%、84.54%、90.00%、75.68%,差异均有统计学意义(P<0.05)。ACI阳性患者的平均弥散率及表观弥散系数均高于ACI阴性患者,各向异性分数低于ACI阴性患者,差异均有统计学意义(P<0.05)。结论:DWI与FLAIR在ACI诊断中均具有重要的诊断价值,联合应用这两项技术能够显著提高诊断的准确性和可靠性,为ACI的早期诊断提供有力支持。
Objective:To explore the clinical application value of magnetic resonance diffusion-weighted imaging(DWI)and magnetic resonance fluid-attenuated inversion recovery(FLAIR)sequence in the diagnosis of acute cerebral infarction(ACI).Methods:A retrospective analysis was conducted on the data of 97 patients with ACI admitted to Shanxian Central Hospital from May 2023 to August 2024.All patients underwent DWI and FLAIR examinations,and the comprehensive clinical diagnosis results were used as the gold standard for comparative analysis.The diagnostic consistency between each examination method and the gold standard were compared.The diagnostic efficacy of DWI and FLAIR alone and in combination was evaluated,and the DWI-related parameters of ACI-positive and ACI-negative patients were compared.Results:Through comprehensive clinical diagnosis,among the 97 patients,63 were confirmed ACI positive and 34 were ACI negative.The Kappa value of the combined examination of DWI and FLAIR was 0.955,which was higher than 0.663 for DWI and 0.667 for FLAIR.The sensitivity of the combined examination of DWI and FLAIR was 96.83%,the specificity was 100.00%,the accuracy was 97.94%,the positive predictive value was 100.00%,and the negative predictive value was 94.44%,which were higher than 87.30%,79.41%,84.54%,88.71%,and 77.14%of the single examination of DWI,and higher than 85.71%,82.35%,84.54%,90.00%,and 75.68%of FLAIR alone,the differences were statistically significant(P<0.05).The average diffusion rate and apparent diffusion coefficient of ACI-positive patients were both higher than those of ACI-negative patients,and the anisotropy score was lower than that of ACI-negative patients,the differences were statistically significant(P<0.05).Conclusion:Both DWI and FLAIR have significant diagnostic value in the diagnosis of ACI.The combined application of these two techniques can significantly improve the accuracy and reliability of diagnosis and provide strong support for the early diagnosis of ACI.
作者
黄波
HUANG Bo(Department of Radiology,Shanxian Central Hospital,Heze 274000,China)
出处
《中国伤残医学》
2025年第9期92-96,共5页
Chinese Journal of Trauma and Disability Medicine
关键词
急性脑梗死
磁共振弥散加权成像
磁共振液体衰减反转恢复序列
诊断价值
一致性
诊断效能
Acute cerebral infarction
Magnetic resonance diffusion-weighted imaging
Magnetic resonance fluid attenuation inversion recovery sequence
Diagnostic value
Consistency
Diagnostic efficacy
