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speckle tracking strain

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https://www.readbyqxmd.com/read/28240425/assessment-of-left-atrial-mechanical-function-and-synchrony-in-paroxysmal-atrial-fibrillation-with-two-dimensional-speckle-tracking-echocardiography
#1
Zhijuan Shang, Dechun Su, Tao Cong, Yinghui Sun, Yan Liu, Na Chen, Jun Yang
BACKGROUND: The aim of this study was to investigate left atrial (LA) function and synchrony in paroxysmal atrial fibrillation (PAF) patients using two-dimensional speckle tracking echocardiography (STE). METHODS: Forty-five PAF patients and 30 healthy controls were enrolled. LA peak ventricular systolic longitudinal strain (LAS-S ) and strain rate (LASR-S ) and left atrial longitudinal strain (LAS-A ) and strain rate (LASR-A ) during late diastole were determined using STE, and the standard deviation of the time to peak (TPSD) of the regional strains was calculated to quantify LA dyssynchrony...
February 2017: Echocardiography
https://www.readbyqxmd.com/read/28238564/impact-of-persistent-left-ventricular-regional-wall-motion-abnormalities-in-childhood-cancer-survivors-after-anthracycline-therapy-assessment-of-global-left-ventricular-myocardial-performance-by-3d-speckle-tracking-echocardiography
#2
Hirotsugu Okuma, Nobutaka Noto, Syuntaro Tanikawa, Koji Kanezawa, Maiko Hirai, Katsuyoshi Shimozawa, Hiroshi Yagasaki, Hiroyuki Shichino, Shori Takahashi
AIMS: To identify left ventricular (LV) mechanical impairment by 3D speckle-tracking echocardiography (3DSTE) in long-term childhood cancer survivors after anthracycline therapy with or without persistent LV regional diastolic wall motion abnormalities (WMA) and a preserved LV ejection fraction (EF >53%). METHODS AND RESULTS: Thirty-two patients (median: 14.6 years) and 12 age-matched controls were studied. The patients were divided into two groups according to the existence of WMA: Group 1 (with WMA: n=14), Group 2 (without WMA: n=18)...
February 23, 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/28220640/multidimensional-contractile-reserve-predicts-adverse-outcome-in-patients-with-severe-systolic-heart-failure-a-4-year-follow-up-study
#3
Ioannis A Paraskevaidis, Ignatios Ikonomidis, Panagiotis Simitsis, John Parissis, Vasilios Stasinos, George Makavos, John Lekakis
AIMS: Left ventricular contractile reserve is a prognostic indicator for adverse outcome in patients with severe chronic heart failure with reduced ejection fraction (HFrEF). We investigated the dobutamine-induced changes of LV multidimensional deformation and their predictive value for cardiac mortality of patients with severe chronic HFrEF. METHODS AND RESULTS: In this prospective study, out of 130 patients with severe HFrEF who underwent a low-dose dobutamine stress echocardiography (LDSE) study using speckle tracking imaging, 100 patients were followed up for the occurrence of cardiac death over a period of 4 years...
February 21, 2017: European Journal of Heart Failure
https://www.readbyqxmd.com/read/28220351/two-dimensional-speckle-tracking-echocardiography-demonstrates-no-effect-of-active-acromegaly-on-left-ventricular-strain
#4
I C M Volschan, L Kasuki, C M S Silva, M L Alcantara, R M Saraiva, S S Xavier, M R Gadelha
BACKGROUND: Speckle tracking echocardiography (STE) allows for the study of myocardial strain (ε), a marker of early and subclinical ventricular systolic dysfunction. Cardiac disease may be present in patients with acromegaly; however, STE has never been used to evaluate these patients. OBJECTIVE: To evaluate left ventricular (LV) global longitudinal strain in patients with active acromegaly with normal LV systolic function. DESIGN: Cross-sectional clinical study...
February 20, 2017: Pituitary
https://www.readbyqxmd.com/read/28214964/speckle-tracking-in-alcapa-patients-after-surgical-repair-as-predictor-of-residual-coronary-disease
#5
Biagio Castaldi, Vladimiro Vida, Elena Reffo, Massimo Padalino, Queenette Daniels, Giovanni Stellin, Ornella Milanesi
Surgical re-implantation of the left coronary artery (LCA) is the treatment of choice in anomalous origin of left coronary artery from pulmonary artery (ALCAPA). Despite normalization of left ventricular function after surgery, residual coronary lesions or myocardial fibrosis may be found. The aim of this study was to detect regional left ventricular dysfunction predictive of coronary lesions or residual myocardial fibrosis using speckle tracking. We enrolled ten patients treated with surgical re-implantation of LCA for ALCAPA...
February 18, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28213737/associations-among-left-ventricular-systolic-function-tachycardia-and-cardiac-preload-in-septic-patients
#6
Michael J Lanspa, Sajid Shahul, Andrew Hersh, Emily L Wilson, Troy D Olsen, Eliotte L Hirshberg, Colin K Grissom, Samuel M Brown
BACKGROUND: In sepsis, tachycardia may indicate low preload, adrenergic stimulation, or both. Adrenergic overstimulation is associated with septic cardiomyopathy. We sought to determine whether tachycardia was associated with left ventricular longitudinal strain, a measure of cardiac dysfunction. We hypothesized an association would primarily exist in patients with high preload. METHODS: We prospectively observed septic patients admitted to three study ICUs, who underwent early transthoracic echocardiography...
December 2017: Annals of Intensive Care
https://www.readbyqxmd.com/read/28210715/feasibility-and-reproducibility-of-two-dimensional-wall-motion-tracking-wmt-in-fetal-echocardiography
#7
Christian Enzensberger, Friederike Achterberg, Jan Degenhardt, Aline Wolter, Oliver Graupner, Johannes Herrmann, Roland Axt-Fliedner
Objective The primary objective of this study was to determine the feasibility and reproducibility of 2-dimensional speckle tracking imaging based on the wall motion tracking (WMT) technique in fetal echocardiography. The secondary objective was to compare left and right ventricular global and segmental longitudinal peak strain values. Methods A prospective cross-sectional study was performed. Global and segmental longitudinal peak strain values of the left ventricle (LV) and right ventricle (RV) were assessed prospectively...
February 2017: Ultrasound International Open
https://www.readbyqxmd.com/read/28204860/left-ventricular-systolic-dysfunction-during-septic-shock-the-role-of-loading-conditions
#8
Florence Boissier, Keyvan Razazi, Aurélien Seemann, Alexandre Bedet, Arnaud W Thille, Nicolas de Prost, Pascal Lim, Christian Brun-Buisson, Armand Mekontso Dessap
PURPOSE: The clinical significance of septic myocardial dysfunction is controversial, a fact that may be explained by the influence of loading conditions. Many indices may be useful to characterize cardiac function during septic shock, but their feasibility and physiological coherence in the clinical setting are unknown. METHODS: Hemodynamic and echocardiographic data with tissue Doppler and speckle tracking were prospectively recorded on the first 3 days of human septic shock...
February 15, 2017: Intensive Care Medicine
https://www.readbyqxmd.com/read/28199991/left-ventricular-longitudinal-strain-in-soccer-referees
#9
Luigi Gianturco, Bruno Bodini, Vincenzo Gianturco, Giuseppina Lippo, Agnese Solbiati, Maurizio Turiel
Along the years, the analysis of soccer referees perfomance has interested the experts and we can find several types of studies in literature using in particular cardiac imaging. The aim of this retrospective study was to observe relationship between VO2max uptake and some conventional and not-conventional echocardiographic parameters. In order to perform this evaluation, we have enrolled 20 referees, belonging to Italian Soccer Referees' Association and we have investigated cardiovascular profile of them. We found a strong direct relationship between VO2max and global longitudinal strain of left ventricle assessed by means of speckle tracking echocardiographic analysis (R2=0...
February 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28198938/left-atrial-deformation-analysis-in-patients-with-corrected-tetralogy-of-fallot-by-3d-speckle-tracking-echocardiography-from-the-magyar-path-study
#10
Kálmán Havasi, Péter Domsik, Anita Kalapos, Jackie S McGhie, Jolien W Roos-Hesselink, Tamás Forster, Attila Nemes
Background: Three-dimensional (3D) echocardiography coupled with speckle-tracking echocardiographic (STE) capability is a novel methodology which has been demontrated to be useful for the assessment of left atrial (LA) volumes and functional properties. There is increased scientific interest on myocardial deformation analysis in adult patients with corrected tetralogy of Fallot (cTOF). Objectives: To compare LA volumes, volume-based functional properties and strain parameters between cTOF patients and age- and gender-matched healthy controls...
February 13, 2017: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/28194841/impaired-left-ventricular-global-longitudinal-strain-in-patients-with-heart-failure-with-preserved-ejection-fraction-insights-from-the-relax-trial
#11
Adam D DeVore, Steven McNulty, Fawaz Alenezi, Mads Ersboll, Justin M Vader, Jae K Oh, Grace Lin, Margaret M Redfield, Gregory Lewis, Marc J Semigran, Kevin J Anstrom, Adrian F Hernandez, Eric J Velazquez
BACKGROUND: While abnormal left ventricular (LV) global longitudinal strain (GLS) has been described in patients with heart failure with preserved ejection fraction (HFpEF), its prevalence and clinical significance are poorly understood. METHODS AND RESULTS: Patients enrolled in the RELAX trial of sildenafil in HFpEF (LV ejection fraction ≥50%) in whom two-dimensional, speckle-tracking LV GLS was possible (n = 187) were analysed. The distribution of LV GLS and its associations with clinical characteristics, LV structure and function, biomarkers, exercise capacity and quality of life were assessed...
February 14, 2017: European Journal of Heart Failure
https://www.readbyqxmd.com/read/28188931/percutaneous-left-atrial-appendage-closure-improves-left-atrial-mechanical-function-through-frank-starling-mechanism
#12
Augustin Coisne, Rosario Pilato, François Brigadeau, Didier Klug, Christelle Marquie, Zouheir Souissi, Marjorie Richardson, Stéphanie Mouton, Anne-Sophie Polge, Patrizio Lancellotti, Dominique Lacroix, David Montaigne
BACKGROUND: Modifications in left atrial (LA) flow velocities after left atrial appendage (LAA) exclusion have been shown in animal and ex vivo models. In a substudy of the PROTECT AF, an objective improvement in quality of life was observed after LAA closure. OBJECTIVE: We aimed to investigate the impact of LAA closure on LA transport function METHODS: Comprehensive Transthoracic echocardiography (TTE) evaluation (2D/3D, 2D speckle tracking) was prospectively performed before and after LAA closure (at discharge and 45 days after procedure) in 33 patients...
February 7, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28185312/reproducibility-and-experience-dependence-of-echocardiographic-indices-of-left-ventricular-function-side-by-side-comparison-of-global-longitudinal-strain-and-ejection-fraction
#13
Diego Medvedofsky, Kalie Kebed, Luke Laffin, Jeremy Stone, Karima Addetia, Roberto M Lang, Victor Mor-Avi
BACKGROUND: Although left ventricular (LV) ejection fraction (EF) and global longitudinal strain (GLS) are recommended by the current echocardiographic chamber quantification guidelines, these measurements are not performed routinely. Because EF measurements rely on manual tracing of LV boundaries, and are subject to inter-reader variability and experience dependence, we hypothesized that semiautomated GLS measurements using speckle tracking would be more reproducible and less experience-dependent...
February 9, 2017: Echocardiography
https://www.readbyqxmd.com/read/28183843/left-atrial-size-and-function-in-hypertrophic-cardiomyopathy-patients-and-risk-of-new-onset-atrial-fibrillation
#14
Philippe Debonnaire, Emer Joyce, Yasmine Hiemstra, Bart J Mertens, Douwe E Atsma, Martin J Schalij, Jeroen J Bax, Victoria Delgado, Nina Ajmone Marsan
BACKGROUND: The value of left atrial (LA) diameter, volume, and strain to risk stratify hypertrophic cardiomyopathy patients for new-onset atrial fibrillation (AF) was explored. METHODS AND RESULTS: A total of 242 hypertrophic cardiomyopathy patients without AF history were evaluated by (speckle-tracking) echocardiography. During mean follow-up of 4.8±3.7 years, 41 patients (17%) developed new-onset AF. Multivariable analysis showed LA volume (≥37 mL/m(2); hazard ratio, 2...
February 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28168822/circumferential-strain-by-velocity-vector-imaging-and-speckle-tracking-echocardiography-validation-against-sonomicrometry-in-an-aortic-phantom
#15
Johan Petrini, Maria J Eriksson, Kenneth Caidahl, Matilda Larsson
BACKGROUND: Evaluation of arterial deformation and mechanics using strain analysis on ultrasound greyscale images has gained increasing scientific interest. The aim of this study was to validate in vitro measurements of circumferential strain by velocity vector imaging (VVI) and speckle-tracking echocardiography (STE) against sonomicrometry as a reference method. METHOD: Two polyvinyl alcohol phantoms sized to mimic the descending aorta were constructed and connected to a pulsatile flow pump to obtain high-resistance flow profiles...
February 6, 2017: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/28168740/decreased-biventricular-longitudinal-strain-shortly-after-congenital-heart-defect-surgery
#16
Jonne M de Boer, Irene M Kuipers, Liselotte M Klitsie, Nico A Blom, Arend D J Ten Harkel
OBJECTIVE: Impaired ventricular performance in patients who underwent surgery for congenital heart defect (CHD) may ultimately result in clinical heart failure. It is therefore important to regularly evaluate the left ventricular (LV) and right ventricular (RV) performance. We evaluated tissue Doppler imaging (TDI) and speckle tracking echocardiography (STE) before and after surgical correction of a CHD. STUDY DESIGN: Patients with CHD undergoing biventricular corrective surgery were included in this retrospective study...
February 6, 2017: Echocardiography
https://www.readbyqxmd.com/read/28168563/right-atrial-strain-is-predictive-of-clinical-outcomes-and-invasive-hemodynamic-data-in-group-1-pulmonary-arterial-hypertension
#17
Nicole M Bhave, Scott H Visovatti, Brian Kulick, Theodore J Kolias, Vallerie V McLaughlin
Transthoracic echocardiography (TTE) is a practical and widely used tool for risk stratification in pulmonary arterial hypertension (PAH). We hypothesized that right atrial (RA) reservoir function, represented by peak RA systolic strain, correlates with invasive hemodynamic measurements and clinical outcomes in PAH. Patients with group 1 PAH who had TTE within 6 months of index PAH clinic visit and right heart catheterization were included in this retrospective study. Peak RA strain in the 2D apical 4-chamber view was measured with speckle-tracking software...
February 6, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28166493/a-gpu-accelerated-3d-coupled-sub-sample-estimation-algorithm-for-volumetric-breast-strain-elastography
#18
Bo Peng, Yuqi Wang, Timothy J Hall, Jingfeng Jiang
Our primary objective of this work was to extend a previously published 2D coupled sub-sample tracking algorithm for 3D speckle tracking in the framework of ultrasound breast strain elastography. In order to overcome heavy computational cost, we investigated the use of a graphic processing unit (GPU) to accelerate the 3D coupled sub-sample speckle tracking method. The performance of the proposed GPU implementation was tested using a tissue-mimicking (TM) phantom and in vivo breast ultrasound data. The performance of this 3D sub-sample tracking algorithm was compared with the conventional 3D quadratic subsample estimation algorithm...
January 31, 2017: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/28159427/left-ventricular-rigid-body-rotation-in-a-diffuse-large-b-cell-lymphoma-patient-with-cardiac-involvement-a-case-from-the-three-dimensional-speckle-tracking-echocardiographic-magyar-path-study
#19
Dóra Földeák, Anita Kalapos, Péter Domsik, Mária Sinkó, Nóra Szeleczki, Enikő Bagdi, László Krenács, Tamás Forster, Zita Borbényi, Attila Nemes
Secondary myocardial involvement by diffuse large B-cell lymphoma is a rare occurrence. Left ventricular (LV) twist is considered an essential part of LV function. In normal circumstances LV twist results from the movement of two orthogonally oriented muscular bands of a helical myocardial structure with consequent clockwise rotation of the base and counterclockwise rotation of the apex. Three-dimensional (3D) speckle-tracking echocardiography (3DSTE) has been found to be feasible for non-invasive 3D quantification of LV wall motion and rotational mechanics...
February 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/28155065/left-atrial-strain-assessed-by-three-dimensional-speckle-tracking-echocardiography-predicts-atrial-fibrillation-recurrence-after-catheter-ablation-in-patients-with-paroxysmal-atrial-fibrillation
#20
Atsushi Mochizuki, Satoshi Yuda, Takefumi Fujito, Mina Kawamukai, Atsuko Muranaka, Daigo Nagahara, Shinya Shimoshige, Akiyoshi Hashimoto, Tetsuji Miura
BACKGROUND: Several studies have shown the utility of left atrial (LA) function determined by two-dimensional or three-dimensional speckle tracking echocardiography (2D- or 3D-STE) for identifying patients with paroxysmal atrial fibrillation (AF). However, whether 3D-STE is applicable for prediction of the recurrence of AF after catheter ablation (CA) remains unknown. We examined whether any 3D-STE parameters are better than 2D-STE parameters for the prediction of AF recurrence. METHODS: Forty-two patients with paroxysmal AF (58 ± 10 years old, 69% male) underwent 2D- and 3D-STE within 3 days before first-time CA...
February 2, 2017: Journal of Echocardiography
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