scholarly journals Segment-orientated analysis of two-dimensional strain and strain rate as assessed by velocity vector imaging in patients with acute myocardial infarction

2011 ◽  
Vol 8 (2) ◽  
pp. 106-113 ◽  
Author(s):  
Thomas Butz ◽  
Corinna N. Lang ◽  
Marc van Bracht ◽  
Magnus W. Prull ◽  
Hakan Yeni ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Acute Myocardial Infarction ◽  
Strain Rate ◽  
Velocity Vector ◽  
Two Dimensional ◽  
Velocity Vector Imaging ◽  
Strain And Strain Rate

scholarly journals Prognostic importance of strain and strain rate after acute myocardial infarction

2010 ◽  
Vol 31 (13) ◽  
pp. 1640-1647 ◽  
Author(s):  
M. L. Antoni ◽  
S. A. Mollema ◽  
V. Delgado ◽  
J. Z. Atary ◽  
C. J. W. Borleffs ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Acute Myocardial Infarction ◽  
Strain Rate ◽  
Strain And Strain Rate ◽  
Prognostic Importance

Feasibility of strain and strain rate evaluation by two-dimensional speckle tracking in murine model of myocardial infarction

2013 ◽  
Vol 14 (2) ◽  
pp. 136-143 ◽  
Author(s):  
Ewa Szymczyk ◽  
Piotr Lipiec ◽  
Michał Plewka ◽  
Małgorzata Białas ◽  
Marta Olszewska ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Strain Rate ◽  
Murine Model ◽  
Speckle Tracking ◽  
Two Dimensional ◽  
Strain And Strain Rate ◽  
Rate Evaluation

Detection of Regional Myocardial Dysfunction in Patients with Acute Myocardial Infarction Using Velocity Vector Imaging

2008 ◽  
Vol 21 (8) ◽  
pp. 879-886 ◽  
Author(s):  
Ruxandra Jurcut ◽  
Christos J. Pappas ◽  
Pier Giorgio Masci ◽  
Lieven Herbots ◽  
Mariola Szulik ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Acute Myocardial Infarction ◽  
Velocity Vector ◽  
Myocardial Dysfunction ◽  
Velocity Vector Imaging

Abstract 1589: Pulmonary Hypertension Is Associated With Regional Right Ventricular Systolic Dysfunction And Dyssynchrony: Strain and Strain Rate Assessment Using Velocity Vector Imaging Technique.

Circulation ◽  
2007 ◽  
Vol 116 (suppl_16) ◽  
Author(s):  
Hong Meng ◽  
Hector R Villarraga ◽  
PuWai Lee ◽  
Shah A Aijaz ◽  
Maytinee Kittipovanonth ◽  
...  
Keyword(s):  
Pulmonary Hypertension ◽  
Right Ventricular ◽  
Strain Rate ◽  
Velocity Vector ◽  
Systolic Function ◽  
Systolic Dysfunction ◽  
Systolic Pressure ◽  
Tangential Velocity ◽  
Velocity Vector Imaging ◽  
Strain And Strain Rate

Background: Strain and strain rate has been shown to identify subtle contraction abnormalities of left ventricle. Objectives: We hypothesized that S and SR derived from velocity vector imaging (VVI) will allow early identification of global and regional RV systolic function in patients with pulmonary hypertension (PHT) compared to conventional echo parameters. Methods: 96 patients, 35 normal RV Systolic Pressure (RVSP < 30 mmHg) and 61 with PHT, {24 mild-moderate (RVSP > 60 mmHg) and 37 severe (RVSP < 60 mmHg)} underwent echo-Doppler assessment of RV. Apical 4 chamber images at end expiration were used for RV lateral wall (LW) and ventricular septal (VS) segment analysis for systolic tangential velocity (Ta V), S and SR. In addition RV end systolic and diastolic area, RV fractional area change (RV FAC), RV performance index (RIMP) and tricuspid annulus systolic excursion were measured. Results: Peak S, systolic SR and Ta V at the basal, mid and apical segments of the RV LW and VS were depressed in patients with PHT compared with controls, Table 1 , P 0.001. Similarly, significant decrease in RIMP was seen in patients with PHT compared to controls, p <0.001. Significant correlation (p<0.001, r >0.6) was noted between the 2D FAC and S, SR. The time to peak systolic S indexed to end diastolic area (EDA) is significantly prolonged, p<0.01 in all segments in patients with PHT indicating dyssynchrony. Conclusion: S and SR allows assesment of Regional RV systolic function otherwise difficult to assess from conventional echo-Doppler technique. PHTN is associated with not only regional RV systolic dysfunction but also with dyssynchrony. Thus, this new tool can offer new insights in the functioning of right ventricular global and regional function. mean±SD of strain

Global Longitudinal Cardiac Strain and Strain Rate for Assessment of Fetal Cardiac Function: Novel Experience with Velocity Vector Imaging

2009 ◽  
Vol 26 (1) ◽  
pp. 28-36 ◽  
Author(s):  
Piers C.A. Barker ◽  
Helene Houle ◽  
Jennifer S. Li ◽  
Stephen Miller ◽  
James Rene Herlong ◽  
...  
Keyword(s):  
Cardiac Function ◽  
Strain Rate ◽  
Velocity Vector ◽  
Fetal Cardiac Function ◽  
Velocity Vector Imaging ◽  
Strain And Strain Rate ◽  
Cardiac Strain
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