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  Indian J Med Microbiol
 

Figure 1: Schematic representation of the measurement of the Tei index. a: time interval from the end to the start of transmitral flow, b: left ventricular ejection time (also denoted by ejection time), c: time interval from the peak of the R wave on the ECG to the start of transmitral flow, d: time interval from the peak of the R wave on the ECG to the end of ejection time, ejection time: (b) left ventricular ejection time, IVCT: Isovolumic contraction time, IVRT: Isovolumic relaxation time, ECG: Electrocardiography[8]

Figure 1: Schematic representation of the measurement of the Tei index. a: time interval from the end to the start of transmitral flow, b: left ventricular ejection time (also denoted by ejection time), c: time interval from the peak of the R wave on the ECG to the start of transmitral flow, d: time interval from the peak of the R wave on the ECG to the end of ejection time, ejection time: (b) left ventricular ejection time, IVCT: Isovolumic contraction time, IVRT: Isovolumic relaxation time, ECG: Electrocardiography<sup>[8]</sup>