PiCCO versus Doppler Echocardiography for Cardiac Output Measurement in the Intensive Care Unit: A Prospective Observational Correlation–Agreement Study

This dataset contains anonymized paired measurements of cardiac output and cardiac index obtained using PiCCO (transpulmonary thermodilution) and Doppler echocardiography in critically ill adult patients admitted to an intensive care unit. The study included five patients and 30 repeated paired measurements collected under different hemodynamic conditions. Variables include patient identifier (anonymized), timepoint, cardiac output (L/min), and cardiac index (L/min/m²) measured by both methods. The dataset was used for correlation and agreement analysis, including Bland–Altman assessment and repeated-measures modeling. All data are fully anonymized and contain no personally identifiable information本数据集包含经匿名化处理的配对测量数据，采集对象为重症监护病房（intensive care unit）收治的成年危重症患者，测量指标为心输出量（cardiac output）与心指数（cardiac index），分别采用PiCCO（经肺热稀释法，transpulmonary thermodilution）与多普勒超声心动图（Doppler echocardiography）获取。 本研究共纳入5名患者，在不同血流动力学条件下采集了30组重复配对测量数据。数据集涵盖的变量包括：匿名化患者标识符、测量时间点、两种方法测得的心输出量（单位：升/分钟）及心指数（单位：升/分钟/平方米）。 该数据集可用于相关性与一致性分析，包括Bland–Altman分析（Bland–Altman analysis）及重复测量建模（repeated-measures modeling）。 所有数据均已完成匿名化处理，未包含任何个人可识别信息（personally identifiable information）。