Abstract
heart failure. Colour coded tissue Doppler imaging (TDI) has been used to quantify MA by measuring the standard deviation of the time from Q wave to peak systolic velocity for 12 segments (Ts-SD). Real time 3D Echocardiography (RT3DE) is a novel technique which provides qualitative and quantitative assessment of MA by measuring the Dysynchrony Index (DI), which is defined as the standard deviation of the time for the 16 segments to reach their minimum volumes. In this study we sought to determine the correlation between these two methods. Methods: 35 patients (644-10 years)were assessed using TDI and RT3DE. Ts-SD was measured offline using TDI (Qlab).RT3DE images were acquired using Sonos 7500 and analyzed offline with Tomtec software to derive ejection fraction (EF) and DI (fig). Results: A significant negative correlation was found between EF and both TsSD and DI (r=-0.67 p<0.03, r=-0.68 p<0.01 respectively). A strong positive correlation was also documented between DI and Ts-SD (r=0.69 p<0.02, fig). There was significant interobserver agreement both in Ts-SD and DI (r=0.71 p<0.01, r=0.9 p<0.01 respectively). The correlation between measurements was superior for RT3DE compared with TDI(Z=-1.27)
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
