基于机器学习的分析,用于预测心内压力的非侵入性测量
Annemiek E van Ravensberg1, Niels T B Scholte1, Aaram Omar Khader1
1Department of Cardiology, Erasmus MC, Cardiovascular Institute, Thorax Center, Doctor Molewaterplein 40, 3015 GD Rotterdam, The Netherlands.
European heart journal. Digital health
|May 22, 2024
概括
非侵入性方法在估计心力衰竭 (HF) 患者的肺毛细血管压 (PCWP) 时的准确性有限. 这表明目前的监测技术需要改进,以更好地管理高频的血液动力学.
科学领域:
- 心脏病学 心脏病学
- 生物医学工程 生物医学工程
- 数据科学数据科学数据科学
背景情况:
- 早期检测堵塞可以改善心力衰竭 (HF) 患者的结果.
- 对侵入性血液动力学参数的有限访问阻碍了最佳的HF治疗.
- 肺毛细管压力 (PCWP) 是HF管理的关键血液动力学参数.
研究的目的:
- 开发一个模型,用非侵入性测量来估计侵入性PCWP.
- 为了比较PCWP估计的传统统计和机器学习 (ML) 技术.
- 评估HF患者的非侵入性血液动力学监测的可行性.
主要方法:
- 利用了853次右侧心脏导管手术 (2017-2022) 的数据.
- 包括非侵入性参数:动脉血压,和,心率变化,体重和温度.
- 应用了各种传统和ML回归/分类模型,以R2和AUC评估性能.
主要成果:
- 心率变化显示了与PCWP的最高相关性 (0.16).
- 回归模型产生了较低的R2值 (高达0.04).
- 分类模型达到了高达0.59的AUC值,表明预测能力有限.
结论:
- 包括ML在内的非侵入性方法与侵入性PCWP的相关性有限.
- 目前的非侵入性监测显示,与血液动力学参数的相关性较弱.
- 未来的研究应该专注于趋势分析和改善非侵入性血液动力学监测的额外功能.
相关概念视频
01:21Sites for measuring blood pressure
Blood pressure measurement is a fundamental clinical procedure, providing crucial data for assessing cardiovascular health. Among the various sites for this measurement, the brachial and popliteal arteries are predominantly utilized due to their accessibility and the reliability of their readings. This lesson delves into the anatomical significance, methodology, and considerations of measuring blood pressure at these locations.
The Brachial Artery: Primary Site for Blood Pressure Measurement
The Brachial Artery: Primary Site for Blood Pressure Measurement
01:30Equipments Used To Measure Blood Pressure
Direct Method
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
01:15Assessment of blood pressure in brachial artery(one-step method)
This procedural guide systematically measures blood pressure using an oscillometric digital sphygmomanometer, emphasizing accuracy, patient safety, and comfort.
Prepare for the Procedure:
Prepare for the Procedure:
01:23Assessment of blood pressure in brachial artery(two-step method)
Measuring blood pressure is a fundamental skill in healthcare that aids in diagnosing and monitoring hypertension and other cardiovascular conditions. An aneroid sphygmomanometer, commonly used in clinical settings, offers a manual and precise method for blood pressure measurement. The technique for using this instrument involves specific steps that must be carefully executed to ensure accuracy. The following detailed description outlines a two-step technique for assessing blood pressure using...
01:28Special considerations while measuring blood pressure
When assessing blood pressure (BP), healthcare professionals must consider various factors and potential unexpected outcomes to ensure accurate readings and provide proper patient care. Adhering to these guidelines is essential to achieving the most reliable results.
Monitoring Both Arms:
Monitoring BP in both arms during the initial assessment is advisable, as the systolic value may differ by five to ten mm Hg between arms. For subsequent BP assessments, use the arm with the higher reading.
Monitoring Both Arms:
Monitoring BP in both arms during the initial assessment is advisable, as the systolic value may differ by five to ten mm Hg between arms. For subsequent BP assessments, use the arm with the higher reading.
01:17Measurement of Blood Pressure
Assessing blood pressure is a standard procedure executed in virtually all medical environments. The method utilized today was established over a hundred years ago by an innovative Russian doctor, Dr. Nikolai Korotkoff. The soft ticking noise, known as Korotkoff sounds, heard while taking blood pressure readings results from turbulent blood flow within the vessels. The apparatus required for this procedure includes a sphygmomanometer, a blood pressure cuff attached to a gauge, and a stethoscope.