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中华脑血管病杂志(电子版) ›› 2024, Vol. 18 ›› Issue (06) : 549 -555. doi: 10.11817/j.issn.1673-9248.2024.06.005

临床研究

QSM 联合SWI 预测急性缺血性脑卒中患者EVT 后神经功能的价值
李小勇1,(), 郭海志1, 赵洋2   
  1. 1.641300 四川资阳,资阳市中心医院神经内科
    2.641300 四川资阳,资阳市中心医院医学影像科
  • 收稿日期:2024-05-13 出版日期:2024-12-01
  • 通信作者: 李小勇
  • 基金资助:
    四川省基层卫生事业发展研究中心2022年立项项目(SWFZ22-C-100)

Predictive value of QSM combined with SWI in neurological function of patients with acute ischemic stroke after endovascular treatment

Xiaoyong Li1,(), Haizhi Guo1, Yang Zhao2   

  1. 1.Department of Neurology,Ziyang Central Hospital, Ziyang 641300, China
    2.Department of Medical Imaging, Ziyang Central Hospital, Ziyang 641300, China
  • Received:2024-05-13 Published:2024-12-01
  • Corresponding author: Xiaoyong Li
引用本文:

李小勇, 郭海志, 赵洋. QSM 联合SWI 预测急性缺血性脑卒中患者EVT 后神经功能的价值[J/OL]. 中华脑血管病杂志(电子版), 2024, 18(06): 549-555.

Xiaoyong Li, Haizhi Guo, Yang Zhao. Predictive value of QSM combined with SWI in neurological function of patients with acute ischemic stroke after endovascular treatment[J/OL]. Chinese Journal of Cerebrovascular Diseases(Electronic Edition), 2024, 18(06): 549-555.

目的

探讨定量磁敏感成像(QSM)联合磁敏感加权成像(SWI)预测急性缺血性脑卒中(AIS)患者血管内治疗(EVT)后神经功能的价值。

方法

纳入2020 年2 月至2023 年10 月四川省资阳市中心医院神经内科收治的169 例AIS 患者为研究对象,入院时采集患者人口学资料以及影像学检查结果。所有患者均接受EVT,治疗结束会对患者进行为期3 个月的随访,根据改良Rankin 量表(mRS)评分将患者分为神经功能良好组(mRS 评分≤2 分)和不良组(mRS 评分>2 分)。采用多因素Logistic 回归分析影响患者神经功能的因素,绘制受试者工作特征曲线(ROC),分析QSM 联合SWI 对患者神经功能的预测价值。

结果

最终纳入156 例患者,99 例为神经功能良好组,57 例神经功能不良组;神经功能良好组患者入院美国国立卫生研究院卒中量表(NIHSS)评分低于神经功能不良者(P<0.05);神经功能良好组QSM 的变异系数(CV)、中位数、最大值、最小值高于神经功能不良组,平均值高于神经功能不良组,病灶体积、磁敏感血管征(SVS)直径和SVS 阳性占比低于神经功能不良组(P<0.05),差异均有统计学意义;2 组偏度、峰度以及标准差组间对比差异无统计学意义(P>0.05);以治疗后mRS 评分为因变量(1=不良,0=良好),将上述差异具有统计学意义的指标作为自变量进行多因素Logistic 分析,结果显示CV(OR=3.574,95%CI:1.228~10.400)、中位数(OR=0.018,95%CI:0.001~0.621)、病灶体积(OR=1.125,95%CI:1.024~1.235)、SVS 阳性(OR=55.304,95%CI:1.609~1900.426)、SVS 直径(OR=1.287,95%CI:1.032~1.604)均是预测术后神经功能的因素(P<0.05);ROC 曲线显示SVS 阳性、SVS 直径、CV、病灶体积以及中位数对术后患者神经功能的曲线下面积(AUC)分别为0.616、0.836、0.859、0.803、0.867,且QSM和SWI 联合的AUC(0.985)高于单一的(0.935 和0.912)(P<0.05)。

结论

QSM 参数CV、中位数以及SWI 参数SVS 阳性、SVS 直径、病灶体积均是影响术后患者神经功能的相关因素,对患者神经功能具有较高的预测价值,且QSM 联合SWI 的预测价值更高。

Objective

To explore the predictive value of quantitative susceptibility mapping(QSM) combined with susceptibility weighted imaging (SWI) for neurological function in patients with acute ischemic stroke (AIS) after endovascular treatment (EVT).

Methods

One hundred and sixty nine AIS patients admitted to our hospital from February 2020 to October 2023 were included.Demographic data and imaging examination results of patients were collected at admission.All patients undewent EVT and were followed up for 3 months after treatment.Patients were categorized into two groups based on the modified Rankin Scale (mRS) score: good neurological function group (mRS ≤2) and poor neurological function group (mRS>2).Multivariate Logistic regression was used to analyze the factors influencing patients'neurological function, and receiver operating characteristic (ROC) curve was drawn to evaluate the predictive value of QSM combined with SWI on neurological function.

Results

A total of 156 patients were included,comprising 99 patients with good prognosis and 57 with poor prognosis.The NIHSS score was significantly higher in patients with good neurological function compared to those with poor neurological function (P<0.05).The coefficient of variation (CV), median, maximum, and minimum value of QSM were higher in patients with good neurological function, with the average value also being higher than in those with poor neurological function.Lesion volume, the diameter of magnetic sensitive vessel sign (SVS), and the SVS positivity were lower than those in patients with poor neurological function (P<0.05).There was no significant difference in skewness, kurtosis and standard deviation between the two groups (P>0.05).In multivariate Logistic analysis,with mRS score as the dependent variable (1=good, 0=bad), the CV (OR=3.574, 95%CI: 1.228-10.400), median(OR=0.018, 95%CI: 0.001-0.621), lesion volume (OR=1.125, 95%CI: 1.024-1.235), SVS positivity (OR=55.304,95%CI: 1.609-1900.426), and SVS diameter (OR=1.287, 95%CI: 1.032-1.604) were all predictive factors for postoperative neurological function (P<0.05); ROC curve showed that the area under curve (AUC) for SVS positivity, SVS diameter, CV, lesion volume, and median on postoperative neurological function were 0.616,0.836, 0.859, 0.803, and 0.867, respectively, and the AUC of QSM combined with SWI (0.985) was higher than that of individual parameters (0.935 and 0.912, P<0.05).

Conclusion

The CV, median of QSM parameters,SVS positivity and diamete of SWI parameters, and lesion volume are all Influential factors affecting postoperative neurological function, with high predictive value.The combination of QSM with SWI offers superior predictive value for neurological function following EVT in patients with AIS.

表1 2 组AIS 患者临床资料比较
表2 2 组AIS 患者QSM 和SWI 参数比较(±s
表3 多因素Logistic 回归分析影响AIS 患者EVT 后神经功能的因素
图1 中位数、CV、病灶体积、SVS 阳性、SVS直径对急性缺血性脑卒中患者神经功能的预测价值 注:CV 为变异系数;SVS 为磁敏感血管征
图2 QSM 和SWI 联合对急性缺血性卒中患者神经功能的预测价值 注:QSM 为定量磁敏感成像;SWI 为磁敏感加权成像
表4 QSM 和SWI 参数对AIS 患者神经功能的预测价值
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