Response to: “Measurement of Cardiac Time Intervals by Doppler Tissue M-mode Imaging of the Anterior Mitral Leaflet.”

2006 ◽  
Vol 19 (6) ◽  
pp. 837
Author(s):  
Jens-Uwe Voigt
Keyword(s):  
Mitral Leaflet ◽  
Time Intervals ◽  
Anterior Mitral Leaflet ◽  
Cardiac Time Intervals

Measurement of Cardiac Time Intervals by Doppler Tissue M-Mode Imaging of the Anterior Mitral Leaflet

2005 ◽  
Vol 18 (10) ◽  
pp. 1058-1065 ◽  
Author(s):  
Jesper Kjaergaard ◽  
Christian Hassager ◽  
Jae K. Oh ◽  
Jens H. Kristensen ◽  
Jens Berning ◽  
...  
Keyword(s):  
Mitral Leaflet ◽  
Time Intervals ◽  
Anterior Mitral Leaflet ◽  
Cardiac Time Intervals

Abstract 12199: Prognostic Value of Cardiac Time Intervals Measured by Tissue Doppler Imaging M-Mode in the General Population

Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Tor Biering-Sørensen ◽  
Rasmus Mogelvang ◽  
Jan Skov Jensen
Keyword(s):  
General Population ◽  
Diastolic Function ◽  
Tissue Doppler ◽  
Doppler Imaging ◽  
Mitral Leaflet ◽  
Clinical Predictors ◽  
Time Intervals ◽  
Cardiac Time Intervals ◽  
Systolic And Diastolic Function ◽  
Conventional Echocardiography

Purpose: Tissue Doppler imaging (TDI) M-mode through the mitral leaflet is an easy, fast, and precise method to estimate the cardiac time intervals from one cardiac cycle (Figure). The aim was to evaluate the usability of the cardiac time intervals in predicting major cardiovascular events (MACE) in the general population. Methods: In a large community based population study, cardiac function was evaluated in 1,915 participants by both conventional echocardiography and by TDI. The cardiac time intervals, including the isovolumic relaxation time (IVRT), isovolumic contraction time (IVCT), and ejection time (ET) were obtained by TDI M-mode through the mitral leaflet (Figure). IVCT/ET, IVRT/ET and the myocardial performance index (MPI=(IVRT+IVCT)/ET) were calculated. Results: During follow-up (median 10.8 years), 383 (20%) participants reached the combined endpoint MACE (ischemic heart disease, heart failure or cardiac death). After multivariable adjustment for clinical predictors and conventional echocardiography, only the combined indexes, including information on both the systolic and diastolic performance (IVRT/ET and MPI), remained significant prognosticators (IVRT/ET: Subdistribution Hazard Ratio (SHR) 1.16 (1.00-1.34), p = 0.047; MPI: 1.11 (1.03-1.23), p = 0.024). Adding IVRT/ET or MPI to a model already including all other echocardiographic parameters resulted in a significant increase in the Harrell’s c-statistics (p<0.05 for both). Finally, when adding IVRT/ET or MPI to the clinical predictors improved reclassification significantly (p<0.05 for both). Conclusion: In the general population, the combined cardiac time intervals which include information on both the systolic and diastolic function in one index (IVRT/ET and MPI) are not only powerful and independent predictors of future MACE, but provide additional prognostic information to clinical and conventional echocardiographic measures of systolic and diastolic function.

scholarly journals 107 RELATIONSHIP BETWEEN THE ANTERIOR MITRAL LEAFLET MOTION AND LEFT VENTRICULAR SIZE IN THE ECHOGRAM

1978 ◽  
Vol 12 ◽  
pp. 381-381
Author(s):  
Lily George ◽  
James W Mathewson ◽  
Thomos A Riemenschneider ◽  
Thomas J Barstow ◽  
Anthony N Demaia ◽  
...  
Keyword(s):  
Left Ventricular ◽  
Ventricular Size ◽  
Mitral Leaflet ◽  
Anterior Mitral Leaflet ◽  
Left Ventricular Size ◽  
Leaflet Motion

An Effective Technique to Correct Anterior Mitral Leaflet Prolapse

1985 ◽  
Vol 2 (6) ◽  
pp. 468-470 ◽  
Author(s):  
Ottavio Alfieri ◽  
Francesco Maisano
Keyword(s):  
Mitral Leaflet ◽  
Effective Technique ◽  
Anterior Mitral Leaflet ◽  
Leaflet Prolapse

scholarly journals Comparison of yoga and walking-exercise on cardiac time intervals as a measure of cardiac function in elderly with increased pulse pressure

2017 ◽  
Vol 69 (4) ◽  
pp. 485-490 ◽  
Author(s):  
Satish Gurunathrao Patil ◽  
Shankargouda S. Patil ◽  
Manjunatha R. Aithala ◽  
Kusal Kanti Das
Keyword(s):  
Cardiac Function ◽  
Pulse Pressure ◽  
Time Intervals ◽  
Cardiac Time Intervals ◽  
Walking Exercise

Automatic and Robust Delineation of the Fiducial Points of the Seismocardiogram Signal for Noninvasive Estimation of Cardiac Time Intervals

2017 ◽  
Vol 64 (8) ◽  
pp. 1701-1710 ◽  
Author(s):  
Farzad Khosrow-Khavar ◽  
Kouhyar Tavakolian ◽  
Andrew Blaber ◽  
Carlo Menon
Keyword(s):  
Time Intervals ◽  
Cardiac Time Intervals ◽  
Noninvasive Estimation

Influence of anterior mitral leaflet second-order chordae on leaflet dynamics and valve competence

2001 ◽  
Vol 72 (2) ◽  
pp. 535-540 ◽  
Author(s):  
Tomasz A Timek ◽  
Sten Lyager Nielsen ◽  
G.Randall Green ◽  
Paul Dagum ◽  
Ann F Bolger ◽  
...  
Keyword(s):  
Second Order ◽  
Mitral Leaflet ◽  
Anterior Mitral Leaflet

scholarly journals Measurement of cardiac function by cardiac time intervals, applicability in normal pregnancy and twin-to-twin transfusion syndrome

2018 ◽  
Vol 17 (3) ◽  
pp. 129-137
Author(s):  
S. J. Eschbach ◽  
M. Gijtenbeek ◽  
N. van Geloven ◽  
D. Oepkes ◽  
M. C. Haak
Keyword(s):  
Cardiac Function ◽  
Normal Pregnancy ◽  
Time Intervals ◽  
Cardiac Time Intervals

A New Method for the Anterior Mitral Leaflet Segmentation in Echocardiography Videos using the Virtual M-mode Space

2018 ◽  
Author(s):  
Malik Saad Sultan ◽  
Nelson Martins ◽  
Eva Costa ◽  
Diana Veiga ◽  
Manuel Joao Ferreira ◽  
...  
Keyword(s):  
New Method ◽  
Mitral Leaflet ◽  
Anterior Mitral Leaflet ◽  
Mode Space
Sign in / Sign up

Export Citation Format

Share Document