Dahm JB, Hummel A, Kuon E, Voelzke H, Vogelgesang D Doppler Echocardiography in Dilated Cardiomyopathy: Diastolic and Combined Systolic/Diastolic Parameters Offer More Detailed Information on Left Ventricular Global Dysfunction than Systolic Parameters Journal of Clinical and Basic Cardiology 2002; 5 (2): 189-192 PDF Summary Overview
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Figure/Graphic 1: Systolisch/diastolische Performance Calculation of the systolic/diastolic performance [(ICT+IRT)/ET]: Mitral closure-to-opening interval (a) is characterized as the time from cessation to the beginning of mitral inflow. Ejection time (ET) is measured as the duration of left ventricular outflow (b). Isovolumetric contraction time (ICT) + isovolumetric relaxation time (IRT) is calculated by subtracting "b" from "a" divided by "b" [(ICT+IRT)/ET = (a–b)/b]. |
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Figure/Graphic 1: Systolisch/diastolische Performance
Calculation of the systolic/diastolic performance [(ICT+IRT)/ET]: Mitral closure-to-opening interval (a) is characterized as the time from cessation to the beginning of mitral inflow. Ejection time (ET) is measured as the duration of left ventricular outflow (b). Isovolumetric contraction time (ICT) + isovolumetric relaxation time (IRT) is calculated by subtracting "b" from "a" divided by "b" [(ICT+IRT)/ET = (a–b)/b]. |