Lewis G J, Poole-Wilson P A, Angerpointer T, Coltart D J, Williams B T
Eur J Cardiol. 1978 Jun;7(4):283-92.
Aortic blood flow was measured in 14 patients by means of an electromagnetic flow probe placed around the ascending aorta during cardiac surgery. High fidelity left ventricular pressure was monitored directly, 8 different indices of left ventricular function were derived from these measurements, and compared. Peak aortic blood flow correlated with the conventional indices of left ventricular function derived from left ventricular pressure, but better correlations were obtained for the maximum rate of change of power with respect to time. The clinical advantage of the derivation of this index is small and for clinical purposes peak aortic blood flow and the maximum rate of change of flow provide indices of myocardial performance which are directly available from the instrument.
在心脏手术期间，通过置于升主动脉周围的电磁血流探头对14例患者的主动脉血流进行了测量。直接监测高保真左心室压力，从这些测量中得出8种不同的左心室功能指标并进行比较。主动脉血流峰值与从左心室压力得出的传统左心室功能指标相关，但功率随时间的最大变化率相关性更好。该指标推导的临床优势较小，对于临床目的而言，主动脉血流峰值和血流最大变化率提供了可直接从仪器获得的心肌性能指标。
