人工智能辅助超声心动图多普勒参数自动测量的临床实证研究
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郭冠军,男,医学硕士,副主任医师。 江苏省 医学会超声医学分会第十届委员会超声心动图学组成员,中国超 声医学工程学会超声心动图专业委员会成员。 主要研究方向:心 脏瓣膜病、先天性心脏病、人工智能在心脏超声中的应用。

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R540. 4+ 5

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江苏省卫生健康委 2022 年度医学科研项目资助(编号:218)


Clinical empirical study on artificial intelligence-assisted automatic measurement of echocardiographic Doppler parameters
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    摘要:

    目的 评估人工智能(AI)模型自动测量超声心动图多普勒参数的准确性,并量化其使用对超声医师操作时间 与手部操作负荷的节省效果。 方法 回顾性收集 1668 例患者的超声心动图多普勒频谱图像(肺动脉瓣、主动脉瓣、二尖瓣前 向频谱及间隔、侧壁组织多普勒频谱),以两名资深医师一致认可的切面分类与测量结果为金标准,按 4 ∶ 1 比例划分训练集 与验证集,构建基于 ResNet50(切面分类)、YOLOv5(心动周期检测)及 HRNet(关键点检测)的深度学习模型。 模型部署后,前 瞻性采集 747 例多普勒图像验证准确性;另纳入 661 例患者,分为 AI 辅助组(330 例)与非 AI 辅助组(331 例),通过姿态测量 传感器记录检查时间、动作时间、静止时间及轨迹球操作次数,比较两组差异。 结果 AI 模型切面分类总体准确率 90. 5 ~ 99. 3%,各多普勒参数测量与金标准的组内相关系数(ICC)为 0. 9902 ~ 0. 9967,95%置信区间 0. 99 ~ 1. 00,Bland-Altman 分析显示 偏倚趋近于 0。 AI 辅助组中位检查时间、中位动作时间较非 AI 辅助组缩短(P<0. 001);两组静止时间比较,差异无统计学意 义(P = 0. 068)。 AI 辅助组中位轨迹球操作次数少于非 AI 辅助组(P<0. 001)。 结论 本研究构建的 AI 模型可高准确度自动 测量超声心动图多普勒参数,并在真实临床实景下显著缩短检查时间、减少手部操作负荷,为降低超声医师重复性劳损风险、 提升工作效率提供了可量化的实证依据,具有良好的临床转化价值。

    Abstract:

    Objective To evaluate the accuracy of an artificial intelligence (AI) model for automatic measurement of echocardiographic Doppler parameters and to quantify its effect of reducing sonographers’ operation time and hand related operational load. Methods Doppler spectrum images such as pulmonary valve, aortic valve, mitral forward spectrum, septal and lateral tissue Doppler spectrum of 1668 patients were retrospectively collected. The view classification and measurements agreed upon by two senior sonographers were used as the gold standard. The dataset was split into training and validation sets at a ratio of 4 ∶ 1. A deep learning model was constructed based on ResNet50 (view classification), YOLOv5 (cardiac cycle detection) and HRNet (key point detection). After model deployment, 747 Doppler images were prospectively collected for accuracy validation. Additionally, 661 patients were enrolled and divided into an AI-assisted group (n = 330) and a non AI assisted group (n = 331). Examination time, active operation time, stationary time and trackball operation counts were recorded using an attitude-measurement sensor. The differences were compared between the two groups. Results The overall view classification accuracy of the AI model ranged from 90. 5% to 99. 3%. The intraclass correlation coefficients (ICC) between AI measurements and the gold standard for each Doppler parameter ranged from 0. 9902 to 0. 9967, with 95% confidence intervals between 0. 99 and 1. 00. Bland Altman analysis showed that the bias was close to zero. The median examination time and median active operation time in the AI-assisted group were significantly shorter than those in the non-AI-assisted group (both P<0. 001). There was no statistically significant difference in stationary time between the two groups ( P = 0. 068). The median number of trackball operations in the AI-assisted group was significantly lower than that in the non-AI-assisted group (P< 0. 001). Conclusions The proposed AI model can automatically measure echocardiographic Doppler parameters with high accuracy. In real world clinical practice, it significantly shortens the examination time and reduces the hand related operational load. This provides the quantifiable evidence for lowering the risk of repetitive strain injuries and improves the work efficiency for sonographers. It has good clinical translational value.

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史中青,巩旭龙,戚占如,翁和祥,陈 慧,姚 静,罗守华,郭冠军.人工智能辅助超声心动图多普勒参数自动测量的临床实证研究[J].实用医院临床杂志,2026,23(4):42-49

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  • 收稿日期:2026-05-08
  • 最后修改日期:2026-05-15
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  • 在线发布日期: 2026-08-09
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