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中华医学超声杂志(电子版) ›› 2026, Vol. 23 ›› Issue (06) : 433 -441. doi: 10.3877/cma.j.issn.1672-6448.2026.06.001

头颈部超声影像学

基于多模态脑血流影像参数构建AIS-LVO取栓术后神经功能预后预测模型的临床价值
王裕桢1, 杨筱1,3,†(), 林雨菲2, 陈晓琼1, 李玲1, 吴珠娥1, 杨燕芬1, 杨舒萍1   
  1. 1 363000 福建漳州,福建医科大学附属漳州市医院超声医学科
    2 361000 福建厦门,厦门市妇幼保健院超声医学科
    3 100730 北京,中国医学科学院北京协和医院超声医学科
  • 收稿日期:2025-11-24 出版日期:2026-06-01
  • 通信作者: 杨筱
  • 基金资助:
    国家重点研发计划课题项目(2025YFC2423004); 福建医科大学启航课题基金项目(2021QH1260)

A multimodal cerebral blood flow imaging-based predictive model for neurological prognosis after thrombectomy in patients with acute anterior circulation large-vessel occlusion

Yuzhen Wang1, Xiao Yang1,3,†(), Yufei Lin2, Xiaoqiong Chen1, Ling Li1, Zhu'e Wu1, Yanfen Yang1, Shuping Yang1   

  1. 1 Department of Ultrasound Medicine, Zhangzhou Affiliated Hospital of Fujian Medical University, Zhangzhou 363000, China
    2 Department of Ultrasound Medicine, Xiamen Maternal and Child Health Hospital, Xiamen 361000, China
    3 Department of Ultrasound Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
  • Received:2025-11-24 Published:2026-06-01
  • Corresponding author: Xiao Yang
引用本文:

王裕桢, 杨筱, 林雨菲, 陈晓琼, 李玲, 吴珠娥, 杨燕芬, 杨舒萍. 基于多模态脑血流影像参数构建AIS-LVO取栓术后神经功能预后预测模型的临床价值[J/OL]. 中华医学超声杂志(电子版), 2026, 23(06): 433-441.

Yuzhen Wang, Xiao Yang, Yufei Lin, Xiaoqiong Chen, Ling Li, Zhu'e Wu, Yanfen Yang, Shuping Yang. A multimodal cerebral blood flow imaging-based predictive model for neurological prognosis after thrombectomy in patients with acute anterior circulation large-vessel occlusion[J/OL]. Chinese Journal of Medical Ultrasound (Electronic Edition), 2026, 23(06): 433-441.

目的

探讨基于经颅多普勒、经颅彩色多普勒超声以及计算机断层扫描灌注成像等多模态脑血流影像参数构建急性前循环大血管闭塞(AIS-LVO)患者取栓术后神经功能预后预测模型并评估其临床价值。

方法

回顾性收集因AIS-LVO行机械取栓术的患者174例,按7∶3比例分为训练集(121例)和内部验证集(53例),根据患者取栓术后90 d随访的改良Rankin量表(mRS)评分将训练集患者分为预后良好组和不良组。运用单因素差异性和多因素Logistic回归分析,筛选独立危险因素(P<0.05),构建预测模型并验证其临床应用价值。

结果

单因素差异性及多因素回归分析显示年龄(OR=1.07,95%CI:1.02~1.11)、患健侧大脑中动脉均值流速差异比值(OR=1.34,95%CI:1.04~1.73)、发病至血管再通时间(OR=1.01,95%CI:1.01~1.04)、相对脑血流量<30%脑组织体积(OR=1.18,95%CI:1.02~1.36)是AIS-LVO取栓术后的独立危险因素(P均<0.05)。基于以上建立模型Logit(P,预后不良概率)=-6.66+0.06×年龄(岁)+0.01×发病至血管再通时间(min)+0.30×患健侧大脑中动脉均值流速差异比例+0.16×相对脑血流量<30%脑组织体积(ml)。绘制ROC曲线下面积为0.758(95%CI:0.67~0.85),理论预测敏感度为63.2%,特异度为83.7%。霍姆斯拟合优度检验显示训练集(P=0.301)和内部验证集(P=0.126),说明其具有较好的准确性;临床决策曲线分析(DCA)提示该模型具有较好的临床实用性。

结论

联合多模态脑血流影像与临床数据构建AIS-LVO取栓术后神经功能预后的预测模型,有利于提升预测预后不良的准确率,为术后并发症预警及个体化干预提供依据。

Objective

To construct a predictive model for neurological functional prognosis after endovascular thrombectomy in patients with acute anterior circulation large-vessel occlusion (AIS-LVO) based on multimodal cerebral blood flow imaging parameters, including transcranial Doppler, transcranial color-coded Doppler, and computed tomography perfusion, and to evaluate its clinical value.

Methods

A total of 174 patients with AIS-LVO who underwent mechanical thrombectomy were retrospectively enrolled. They were divided into a training set (121 cases) and an internal validation set (53 cases) at a ratio of 7∶3. According to the modified Rankin Scale (mRS) scores at 90-day follow-up after thrombectomy in the training set, patients were assigned to the favorable prognosis group and the poor prognosis group. Univariate difference analysis and multivariate Logistic regression analysis were performed to screen for independent risk factors, construct the predictive model, and validate its clinical application value.

Results

Univariate and multivariate regression analyses identified age (OR=1.07, 95%CI: 1.02~1.11), the ratio of the mean velocity difference between the affected and healthy middle cerebral arteries (OR=1.34, 95%CI: 1.04~1.73), onset-to-recanalization time (OR=1.01, 95%CI: 1.01~1.04), and the volume of brain tissue with relative cerebral blood flow <30% (OR=1.18, 95%CI: 1.02~1.36) as independent risk factors for poor prognosis after thrombectomy (all P<0.05). The model was established as follows: Logit (P, probability of poor prognosis) = −6.66 + 0.06 × age (years) + 0.01 × recanalization time (minutes) + 0.30 × ratio of the mean velocity difference between the affected and healthy MCAs + 0.16 × volume of brain tissue with rCBF <30% (mL). The area under the ROC curve (AUC) was 0.758 (95%CI: 0.67~0.85), with a theoretical predictive sensitivity of 63.2% and specificity of 83.7%. The Hosmer-Lemeshow goodness-of-fit test showed no significant lack of fit in the training set (P=0.301) or the internal validation set (P=0.126), indicating good calibration. Decision curve analysis suggested good clinical utility of the model.

Conclusion

Integrated models combining multimodal cerebral blood flow imaging and clinical data can improve the accuracy of predicting poor neurological outcomes after thrombectomy in AIS-LVO patients, thereby providing a basis for early warning of postoperative complications and personalized interventions.

图1 试验流程图 注:DSA为数学减影;PSV为峰值流速;EDV为舒张末流速;MV为平均流速;PI为搏动指数;CBF为脑血流量;CBV为脑血容量;MTT为平均通过时间;TTP为达峰时间;ROC为受试者工作特征曲线
表1 急性前循环大血管闭塞患者训练集组临床基线资料差异性分析
表2 急性前循环大血管闭塞患者训练集组多模态脑血流影像数据差异性分析
表3 急性前循环大血管闭塞患者训练集组多模态脑血流影像数据共线性分析
表4 多因素Logistic回归分析结果
图2 列线图预测模型
图3 预测模型的性能评估。图a、b分别为训练集和验证集的受试者工作特征曲线;图c、d分别为训练集和验证集的校准曲线;图e、f分别为训练集和验证集的临床决策曲线 注:AUC为受试者工作特征曲线下面积
图4 预后不良风险列线图的病例定位示例
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