无创血流动力学心功能检测仪与心脏超声测量每搏输出量的一致性与相关性

The Consistency and Correlation of Stroke Volume Measurements between Noninvasive Hemodynamic and Cardiac Monitor and Echocardiography

摘要: 目的：评估无创同步多频阻抗血流动力学仪(深圳依可YECO-A03)和心脏彩超(飞利浦Affiniti 70和EPIQ 7c，S5-1探头，频率1.3~2.6/1.6~3.2 MHz)所测每搏输出量(stroke volume, SV)的一致性与相关性。方法：同步采用超声与同步多频阻抗法对85例心血管疾病患者进行SV测量。若多频阻抗测量过程受到干扰，则选取超声检测后最近的一段平稳数据进行对比分析。结果：超声SV (US_SV)与同步多频阻抗法SV (YECO_SV)的线性回归方程为：US_SV = 0.88 × YECO_SV + 8.69 (R² = 0.51)。平均百分比偏差为0.7%，一致性限值(limits of agreement, LoA)为−19.5 mL至18.0 mL，最大百分比误差(maximal percentage error, MPE)为26.8%。结论：心脏超声二维Simpson法与同步多频阻抗法所测得的SV具有等效性，在临床应用中可互相替代。

Abstract: Purposes: To evaluate the consistency and correlation of stroke volume (SV) measurements between a noninvasive synchronized multi-frequency impedance cardiography (MF-ICG) device (YECO-A03, Shenzhen Yike) and echocardiography (Philips Affiniti 70 and EPIQ 7c with S5-1 probe, 1.3~2.6/1.6~3.2 MHz). Methods: SV was measured simultaneously by echocardiography and MF-ICG in 85 cardiovascular patients. If the MF-ICG measurement was interfered with, a stable segment immediately after the ultrasound measurement was selected for analysis. Results: The linear regression between ultrasound-derived SV (US_SV) and MF-ICG-derived SV (YECO_SV) was US_SV = 0.88 × YECO_SV + 8.69 (R² = 0.51). The mean percentage bias was 0.7%, the limits of agreement (LoA) were −19.5 mL to 18.0 mL, and the maximal percentage error (MPE) was 26.8%. Conclusions: SV measurements obtained by echocardiography (2D Simpson’s method) and synchronized multi-frequency impedance cardiography are equivalent and can be used interchangeably in clinical practice.