基于不同的机器学习方法,在住院患者中构建和验证肺栓塞风险预测模型
Tao Huang1, Zhihai Huang1, Xiaodong Peng1
1Emergency Medicine Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China.
Frontiers in cardiovascular medicine
|July 10, 2024
概括
这项研究开发了机器学习模型,用于预测住院患者的肺栓塞 (PE). 随机森林模型证明了PE风险预测的最高准确性和临床益处.
科学领域:
- 医疗信息学 医疗信息学
- 临床预测建模临床预测建模
- 医疗保健服务研究 医疗服务研究
背景情况:
- 肺栓塞 (PE) 对住院患者构成重大风险.
- 准确的风险预测对于及时干预和改善患者结果至关重要.
- 现有的预测方法可能需要通过先进的分析技术进行增强.
研究的目的:
- 开发和比较各种机器学习 (ML) 模型,用于预测住院患者的肺栓塞 (PE).
- 评估不同ML算法的预测性能和临床实用性.
- 确定在临床环境中对PE风险评估最有效的ML模型.
主要方法:
- 对332名住院患者 (172名PE阳性,160名PE阴性) 进行了回顾性研究.
- 开发了六种ML模型:物流回归,决策树,随机森林,天真贝叶斯,支持向量机和AdaBoost.
- 模型性能使用接收器操作特征 (ROC) 曲线分析 (曲线下的面积 - AUC) 和决策曲线分析 (DCA) 来评估.
主要成果:
- 后勤回归确定了深静脉血栓形成,D-二次体升高,激活部分前激素时间缩短,红细胞分布宽度增加作为PE的独立风险因素.
- 随机森林 (RF) 模型实现了最高的曲线下的面积 (AUC) 0.778.8.
- 决策曲线分析 (DCA) 证实随机森林模型提供了最大的临床益处.
结论:
- 机器学习模型,特别是Random Forest,显示出预测住院患者肺栓塞的重大前景.
- 与其他评估的ML模型相比,随机森林模型显示出更高的预测效率和临床实用性.
- 这项研究突出了ML在提高PE在临床实践中的识别和管理方面的潜力.
相关概念视频
01:29Pulmonary Embolism I: Introduction
1.5K
Pulmonary embolism (PE) occurs when a thrombus, fat or air embolus, amniotic fluid, or tumor tissue blocks one or more pulmonary arteries. These blockages originate in the venous system or the right side of the heart.EtiologyPE primarily arises from deep vein thrombosis (DVT) and other hypercoagulable states, such as inherited thrombophilias. Additional etiological factors include venous stasis, commonly seen in obesity, and endothelial injury from surgery and trauma. Less common causes include...
1.5K
01:29Pulmonary Embolism II: Diagnostic Studies and Interprofessional Care
760
Diagnosing Pulmonary EmbolismDiagnosing pulmonary embolism (PE) involves clinical assessment and advanced imaging tests. The preferred diagnostic tool is the spiral (helical) CT scan or CT angiography (CTA), which uses intravenous contrast media to visualize the pulmonary vasculature and identify emboli.A ventilation-perfusion (V/Q) scan is an alternative for patients unable to receive contrast media. This scan includes both perfusion and ventilation scanning. Perfusion scanning involves...
760
01:27Pulmonary Embolism III: Nursing Management
756
A pulmonary embolism occurs when a thrombus, amniotic fluid, tumor tissue, fat, or air embolus blocks one or more pulmonary arteries. Effective nursing management and patient education are crucial for improving outcomes and preventing recurrence.Nursing management starts with obtaining a comprehensive patient history, particularly noting any history of deep vein thrombosis (DVT). Assess for clinical manifestations, including dyspnea, chest pain, crackles, heart murmurs, and signs of right-sided...
756
01:19Pulmonary Embolism I: Introduction
65
A blood clot, or thrombus, is a semi-solid mass composed of fibrin, platelets, and red blood cells. When it forms within a vessel, it can obstruct blood flow, known as thrombosis. If part of the clot detaches, it becomes an embolus that can travel and block distant vessels. When this occurs in the pulmonary arteries, it causes a condition known as pulmonary embolism (PE).Origin and ImpactMost often, the embolus originates from a thrombus in the deep veins of the lower limbs, a condition called...
65