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一、前言用无创性方法测定左心室收缩功能在国内外有许多报导。心脏收缩时间间期(STI)的测定已广泛应用于判断左心室收缩功能,特别是射血前时间与射血时间比值(PEP/LVET)已被确认为一项灵敏而较可靠的指标。但作为全面评定心脏功能,应该包括
First, the preface Noninvasive methods to measure left ventricular systolic function have many reports at home and abroad. Measurement of systolic time (STI) has been widely used to determine left ventricular systolic function, especially the ratio of pre-ejection time to ejection time (PEP / LVET) has been identified as a sensitive and reliable indicator. However, as a comprehensive assessment of cardiac function, should be included