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speckle tracking strain

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https://www.readbyqxmd.com/read/28528162/intervendor-differences-in-the-accuracy%C3%A2-of%C3%A2-detecting-regional-functional%C3%A2-abnormalities-a-report-from-the-eacvi-ase-strain-standardization-task%C3%A2-force
#1
Oana Mirea, Efstathios D Pagourelias, Jurgen Duchenne, Jan Bogaert, James D Thomas, Luigi P Badano, Jens-Uwe Voigt
OBJECTIVES: The purpose of this study was to compare the accuracy of vendor-specific and independent strain analysis tools to detect regional myocardial function abnormality in a clinical setting. BACKGROUND: Speckle tracking echocardiography has been considered a promising tool for the quantitative assessment of regional myocardial function. However, the potential differences among speckle tracking software with regard to their accuracy in identifying regional abnormality has not been studied extensively...
May 11, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28528161/functional-implication-of-mitral-annular-disjunction-in-mitral-valve-prolapse-a-quantitative-dynamic-3d-echocardiographic%C3%A2-study
#2
Alex Pui-Wai Lee, Chun-Na Jin, Yiting Fan, Randolph H L Wong, Malcolm J Underwood, Song Wan
OBJECTIVES: This study aimed to assess the hypothesis that mitral annular disjunction (MAD) is associated with abnormal annular dynamics due to decoupling of annular-ventricular function. BACKGROUND: MAD, defined as a separation between the atrial wall-mitral valve (MV) junction and left ventricular (LV) attachment, is a structural abnormality occurring in MV prolapse (MVP). Few data exist on the 3-dimensional (3D) geometry of MAD and its functional implication...
May 11, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28526545/obstructive-sleep-apnoea-and-right-ventricular-function-a-combined-assessment-by-speckle-tracking-and-three-dimensional-echocardiography
#3
Agostino Buonauro, Maurizio Galderisi, Ciro Santoro, Angelo Canora, Maria Luisa Bocchino, Francesco Lo Iudice, Maria Lembo, Roberta Esposito, Sabrina Castaldo, Bruno Trimarco, Alessandro Sanduzzi
BACKGROUND: Little is known on right ventricular (RV) involvement in obstructive sleep apnoea (OSA). This study aimed at evaluating early RV dysfunction by standard and advanced echocardiography in OSA. METHODS: Fifty-nine OSA patients without heart failure and 29 age-matched controls underwent standard, speckle tracking and real time 3D echocardiography of right ventricle. OSA patients performed lung function tests and overnight cardio-respiratory monitoring with evaluation of apnea-hypopnea index (AHI)...
May 4, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28522757/functional-assessment-of-the-diaphragm-by-speckle-tracking-ultrasound-during-inspiratory-loading
#4
Eline Oppersma, Nima Hatam, Jonne Doorduin, Johannes G van der Hoeven, Gernot Marx, Andreas Goetzenich, Sebastian Fritsch, Leo M A Heunks, Christian S Bruells
BACKGROUND: Assessment of diaphragmatic effort is challenging especially in critically ill patients in the phase of weaning. Fractional thickening during inspiration assessed by ultrasound has been used to estimate diaphragm effort. It is unknown whether more sophisticated ultrasound techniques such as speckle tracking are superior in the quantification of inspiratory effort. This study evaluates the validity of speckle tracking ultrasound to quantify diaphragm contractility. METHODS: Thirteen healthy volunteers underwent a randomized stepwise threshold loading protocol of 0 to 50% of the maximal inspiratory pressure...
May 18, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28515855/speckle-tracking-echocardiography-to-assess-regional-ventricular-function-in-patients-with-apical-hypertrophic-cardiomyopathy
#5
María Cristina Saccheri, Tomás Francisco Cianciulli, Luis Alberto Morita, Ricardo José Méndez, Martín Alejandro Beck, Juan Enrique Guerra, Alberto Cozzarin, Luciana Jimena Puente, Lorena Romina Balletti, Jorge Alberto Lax
AIM: To explore regional systolic strain of midwall and endocardial segments using speckle tracking echocardiography in patients with apical hypertrophic cardiomyopathy (HCM). METHODS: We prospectively assessed 20 patients (mean age 53 ± 16 years, range: 18-81 years, 10 were male), with apical HCM. We measured global longitudinal peak systolic strain (GLPSS) in the midwall and endocardium of the left ventricle. RESULTS: The diastolic thickness of the 4 apical segments was 16...
April 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28514784/effects-of-intensive-statin-therapy-on-left-ventricular-function-in-patients-with-myocardial-infarction-and-abnormal-glucose-tolerance
#6
Søren Auscher, Brian Bridal Løgstrup, Jacob Eifer Møller, Kristina Hoeg Vinther, Jess Lambrechtsen, Kenneth Egstrup
OBJECTIVES: Abnormal glucose tolerance in patients with acute myocardial infarction (AMI) is associated with greater mortality and adverse cardiovascular effects. As statins possess a range of beneficial pleiotropic effects on the cardiovascular system, we sought to assess the cardioprotective effects of statins on left ventricular function in patients with AMI in relation to glycometabolic state. METHODS: In a prospective, randomized trial, 140 patients with AMI were randomized to intensive statin therapy receiving statin loading with 80 mg of rosuvastatin followed by 40 mg daily or standard statin therapy...
May 18, 2017: Cardiology
https://www.readbyqxmd.com/read/28514267/systolic-and-diastolic-lv-mechanics-during-and-following-resistance-exercise
#7
Eric J Stöhr, Mike Stembridge, Rob Shave, T Jake Samuel, Keeron Stone, Joseph I Esformes
PURPOSE: To improve the current understanding of the impact of resistance exercise on the heart, by examining the acute responses of left ventricular (LV) strain, twist and untwisting rate ('LV mechanics'). METHODS: LV echocardiographic images were recorded in systole and diastole before, during and immediately after (7-12 s) double leg press exercise at two intensities (30% and 60% of maximum strength, 1-repetition-maximum, 1RM). Speckle tracking analysis generated LV strain, twist and untwisting rate data...
May 16, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28513231/left-atrial-mechanical-function-and-stiffness-in-patients-with-nondipper-hypertension-a-speckle-tracking-study
#8
Mehmet Demir, İbrahim Aktaş, Ahmet Yıldırım
BACKGROUND: Nondipper hypertension is associated with increased cardiovascular morbidity and mortality. Speckle tracking echocardiography is a novel and promising tool for detecting early changes in left atrial (LA) myocardial dysfunction. Our aim was to evaluate the LA mechanical function and stiffness in nondipper hypertensive patients by two-dimensional speckle tracking echocardiography strain parameters. METHOD: This study included 80 hypertensive patients. Hypertensive patients were divided into two groups: 50 dipper patients (29 male, mean age 51...
May 17, 2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/28511861/speckle-tracking-layer-specific-analysis-of-myocardial-deformation-and-evaluation-of-scar-transmurality-in-chronic-ischemic-heart-disease
#9
Michela Tarascio, Laura Anna Leo, Catherine Klersy, Romina Murzilli, Tiziano Moccetti, Francesco Fulvio Faletra
BACKGROUND: Identification of the extent of scar transmurality in chronic ischemic heart disease is important because it correlates with viability. The aim of this retrospective study was to evaluate whether layer-specific two-dimensional speckle-tracking echocardiography allows distinction of scar presence and transmurality. METHODS: A total of 70 subjects, 49 with chronic ischemic cardiomyopathy and 21 healthy subjects, underwent two-dimensional speckle-tracking echocardiography and late gadolinium-enhanced cardiac magnetic resonance...
May 13, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28511859/reference-ranges-and-regional-patterns-of-left-ventricular-strain-and-strain-rate-using-two-dimensional-speckle-tracking-echocardiography-in-a-healthy-middle-aged-black-and-white-population-the-cardia-study
#10
Henrique T Moreira, Chike C Nwabuo, Anderson C Armstrong, Satoru Kishi, Ola Gjesdal, Jared P Reis, Pamela J Schreiner, Kiang Liu, Cora E Lewis, Stephen Sidney, Samuel S Gidding, João A C Lima, Bharath Ambale-Venkatesh
BACKGROUND: Strain and strain rate are sensitive markers of left ventricular (LV) myocardial function. The aim of this study was to assess reference ranges and regional patterns of LV strain and strain rate using two-dimensional speckle-tracking echocardiography in a large population of black and white subjects. METHODS: This study involved a retrospective review of prospectively collected images in 557 participants in the Coronary Artery Risk Development in Young Adults study who remained healthy at the year 25 examination...
May 13, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28511858/reduced-myocardial-reserve-in-young-x-linked-muscular-dystrophy-mice-diagnosed-by-two-dimensional-strain-analysis-combined-with%C3%A2-stress-echocardiography
#11
Zhenzhou Li, Ying Li, Li Zhang, Xiaoying Zhang, Rebecca Sullivan, Xiaojie Ai, Christopher Szeto, Angela Cai, Longjian Liu, Weidong Xiao, Quanshui Li, Shuping Ge, Xiongwen Chen
BACKGROUND: Early, sensitive, and reproducible evaluation of left ventricular function is imperative for the diagnosis of cardiac dysfunction in patients with Duchene muscular dystrophy. The aim of this study was to test the hypothesis that combining two-dimensional strain analysis with catecholamine stress could be a sensitive method for detecting early cardiac dysfunction. METHODS: Mdx (C57BL/10ScSn-Dmdmdx/J, a mouse model of DMD) and control (C57BL/10ScSn) mice were studied with conventional M-mode and high-frequency ultrasound-based two-dimensional speckle-tracking echocardiography using long- and short-axis images of the left ventricle at baseline and after intraperitoneal isoprenaline (ISO) administration (2 μg/g body weight)...
May 13, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28509760/global-longitudinal-strain-predicts-outcome-after-mitraclip-implantation-for-secondary-mitral-regurgitation
#12
Rodolfo Citro, Cesare Baldi, Patrizio Lancellotti, Angelo Silverio, Gennaro Provenza, Michele Bellino, Michele R Di Muro, Generoso Mastrogiovanni, Roberta De Rosa, Gennaro Galasso, Eduardo Bossone, Pietro Giudice, Federico Piscione
AIM: The aim of this study was to assess preoperative determinants, prevalence, and prognostic impact of left ventricular (LV) reverse remodeling (LVRR) in patients with secondary mitral regurgitation (SMR), undergoing MitraClip implantation (MCi). METHODS: From March 2012 to January 2015, a total of 41 consecutive patients with moderate-to-severe SMR treated successfully with MCi were enrolled. All patients underwent clinical and echocardiographic follow-up after MCi...
May 13, 2017: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/28502268/comparison-of-two-dimensional-and-three-dimensional-echocardiographic-strain-in-children-with-chd
#13
Bethany L Wisotzkey, Brian D Soriano, Sujatha Buddhe
BACKGROUND: In CHD, three-dimensional strain analysis may overcome limitations of Doppler and two-dimensional strain of the left ventricle. The aims of this study were to evaluate feasibility and reproducibility of three-dimensional longitudinal, circumferential, and radial systolic strain by three-dimensional speckle-tracking echocardiography compared with two-dimensional echocardiography. METHODS: Patients with CHD, biventricular circulation with a systemic left ventricle, and who had two- and three-dimensional imaging performed on the same day from 2010 to 2014 were included...
May 15, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28500377/reliability-of-echocardiographic-speckle-tracking-derived-bi-atrial-strain-assessment-under-different-hemodynamic-conditions
#14
Mahdi Sareban, Tabea Perz, Franziska Macholz, Bernhard Reich, Peter Schmidt, Sebastian Fried, Heimo Mairbäurl, Marc M Berger, Josef Niebauer
The aim of this study was to assess intra- and inter-observer variability of left (LA) and right atrial (RA) strain indices obtained by two-dimensional speckle-tracking echocardiography (2D-STE) in a healthy group of individuals at low-altitude and after rapid ascent to high-altitude in order to provoke altered systemic and pulmonary hemodynamics otherwise seen in various cardiac diseases. Twenty healthy subjects underwent transthoracic echocardiography during a baseline examination at low-altitude (424 m) as well as 7, 20 and 44 h after arrival at high-altitude (4559 m)...
May 12, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28497844/echocardiographic-evaluation-of-right-ventricular-systolic-function-the-traditional-and-innovative-approach
#15
Dorota Smolarek, Marcin Gruchała, Wojciech Sobiczewski
Estimation of right ventricular (RV) performance still remains technically challenging due to its anatomical and functional distinctiveness. The current guidelines for the echocardiographic quantification of RV function recommend using multiple indices to describe the RV in a thorough and comprehensive manner, such as RV index of myocardial performance, tricuspid annular plane systolic excursion, fractional area change, Doppler tissue imaging-derived tricuspid lateral annular systolic velocity (S'-wave), three-dimensional RV ejection fraction (3D RVEF), longitudinal strain (RVLS)/strain rate by speckle-tracking echocardiography (STE)...
May 12, 2017: Cardiology Journal
https://www.readbyqxmd.com/read/28497431/effect-of-catheter-based-renal-denervation-on-left-ventricular-function-mass-and-un-twist-with-two-dimensional-speckle-tracking-echocardiography
#16
Lida Feyz, Bas M van Dalen, Marcel L Geleijnse, Nicolas M Van Mieghem, Ron T van Domburg, Joost Daemen
BACKGROUND: Speckle tracking echocardiography (STE) is an echocardiography modality that is able to measure left ventricular (LV) characteristics, including rotation, strain and strain rate. Strain measures myocardial fibre contraction and relaxation. This study aims to assess the effect of renal sympathetic denervation (RDN) on functional myocardial parameters, including STE, and to identify potential differences between responders and non-responders. METHODS: The study population consisted of 31 consecutive patients undergoing RDN in the context of treatment for resistant hypertension...
May 11, 2017: Journal of Echocardiography
https://www.readbyqxmd.com/read/28493465/changes-in-right-ventricular-function-assessed-by-echocardiography-in-dog-models-of-mild-rv-pressure-overload
#17
Tomoya Morita, Kensuke Nakamura, Tatsuyuki Osuga, Nozomu Yokoyama, Keitaro Morishita, Noboru Sasaki, Hiroshi Ohta, Mitsuyoshi Takiguchi
BACKGROUND: The assessment of hemodynamic change by echocardiography is clinically useful in patients with pulmonary hypertension. Recently, mild elevation of the mean pulmonary arterial pressure (PAP) has been shown to be associated with increased mortality. However, changes in the echocardiographic indices of right ventricular (RV) function are still unknown. The objective of this study was to validate the relationship between echocardiographic indices of RV function and right heart catheterization variables under a mild RV pressure overload condition...
May 11, 2017: Echocardiography
https://www.readbyqxmd.com/read/28490697/-effect-of-left-ventricular-hypertrophy-and-deformation-on-cardiac-function-in-patients-with-uremia-cardiomyopathy-by-using-quantitative-speckle-tracking-technology
#18
Yi Zheng, Xiaohong Yang, Qiping Zhou, Yaoyao Huang, Fan Zhang, Liangyu Wang
To evaluate the effect of left ventricular hypertrophy and deformation on cardiac function in patients with uremic cardiomyopathy (UCM) by using the technology of two dimensional speckle tracking imaging (2D-STI).
 Methods: A total of 67 UCM patients were randomly divided into the normal cardiac function group (subgroup A, 32 cases) and the abnormal cardiac function group (subgroup B, 35 cases) according to the New York Heart Association points (NYHA-P). A total of 30 healthy subjetcs served as the control group...
April 28, 2017: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/28490455/speckle-tracking-echocardiography-in-acute-lupus-myocarditis-comparison-to-conventional-echocardiography
#19
Riëtte du Toit, Phillip G Herbst, Annari van Rensburg, Hendrik W Snyman, Helmuth Reuter, Anton F Doubell
AIMS: Lupus myocarditis occurs in 5-10% of patients with systemic lupus erythematosus (SLE). No single feature is diagnostic of lupus myocarditis. Speckle tracking echocardiography (STE) can detect sub-clinical left ventricular dysfunction in SLE patients, with limited research on its utility in clinical lupus myocarditis. We report on STE in comparison to conventional echocardiography in patients with clinical lupus myocarditis. METHODS AND RESULTS: A retrospective study was done at a tertiary referral hospital in South Africa...
May 10, 2017: Echo Research and Practice
https://www.readbyqxmd.com/read/28489667/increasing-levels-of-positive-end-expiratory-pressure-improve-the-left-ventricular-strain
#20
Manuel Ruiz-Bailén, Jesús Cobo-Molinos, Ana M Castillo-Rivera, María C Iniesta-Carricondo, María D Pola Gallego de Guzmán, Antonio Cárdenas-Cruz
PURPOSE: The goal of this study was to evaluate possible changes in the left myocardial performance of patients with cardiogenic shock (CS) during ascending levels of positive end-expiratory pressure (PEEP) using speckle-tracking echocardiography. MATERIALS AND METHODS: This was an interventional clinical study performed on CS patients under mechanical ventilation. These patients underwent echocardiography after 15 to 30 minutes of progressive increases in PEEP (ZEEP, PEEP 5, PEEP 10, PEEP 15 cm H2O)...
May 9, 2017: Journal of Thoracic Imaging
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