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"Speckle-tracking"

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https://www.readbyqxmd.com/read/28091872/impact-of-revascularization-of-coronary-chronic-total-occlusion-on-left-ventricular-function-and-electrical-stability-analysis-by-speckle-tracking-echocardiography-and-signal-averaged-electrocardiogram
#1
Yohei Sotomi, Atsunori Okamura, Katsuomi Iwakura, Motoo Date, Hiroyuki Nagai, Tomohiro Yamasaki, Yasushi Koyama, Koichi Inoue, Yasushi Sakata, Kenshi Fujii
The present study aimed to assess the mechanisms of effects of percutaneous coronary intervention (PCI) for chronic total occlusion (CTO) from two different aspects: left ventricular (LV) systolic function assessed by two-dimensional speckle tracking echocardiography (2D-STE) and electrical stability evaluated by late potential on signal-averaged electrocardiogram (SAECG). We conducted a prospective observational study with consecutive CTO-PCI patients. 2D-STE and SAECG were performed before PCI, and after 1-day and 3-months of procedure...
January 13, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28091404/left-atrial-mechanical-function-and-aortic-stiffness-in-middle-aged-patients-with-the-first-episode-of-atrial-fibrillation
#2
Alev Kilicgedik, Suleyman Ç Efe, Ahmet S Gürbüz, Emrah Acar, Mehmet F Yılmaz, Aslan Erdoğan, Gökhan Kahveci, Ibrahim A Izgi, Cevat Kirma
BACKGROUND: In the early stages of atrial remodeling, aortic stiffness might be an indication of an atrial myopathy, in particular, atrial fibrosis. This study aimed to investigate the association between left atrial (LA) mechanical function, assessed by two-dimensional speckle tracking echocardiography, and aortic stiffness in middle-aged patients with the first episode of nonvalvular atrial fibrillation (AF). METHODS: This prospective study included 34 consecutive patients with the first episode of AF, who were admitted to Kartal Koşuyolu Research and Training Hospital between May 2013 and October 2015, and 31 age- and gender-matched healthy controls...
2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28090258/echocardiographic-and-histologic-correlations-in-patients-with-severe-aortic-stenosis-influence-of-overweight-and-obesity
#3
Nydia Ávila-Vanzzini, Juan Francisco Fritche-Salazar, Nelva Marina Vázquez-Castro, Pedro Rivera-Lara, Oscar Pérez-Méndez, Humberto Martínez-Herrera, Mario Gómez-Sánchez, Alberto Aranda-Frausto, Héctor Herrera-Bello, María Luna-Luna, José Antonio Arias Godínez
BACKGROUND: Severe aortic stenosis (AS), leads to pathological left ventricular remodeling that may worsen with concomitant overweight and obesity (OW/O). METHODS: We aimed to prospectively analyze the impact of OW/O on ventricular remodeling in severe AS, by evaluating the percentage of intraendomyocardial fibrosis (PIEF) and the percentage of infiltrating intraendocardial lipid vacuoles (PIELV) and its relationship to global longitudinal strain (GLS) in patients with OW/O...
December 2016: Journal of Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/28090251/two-dimensional-speckle-tracking-echocardiography-in-normal-korean-population-is-now-to-start-using-in-routine-clinical-practice
#4
EDITORIAL
Jin Oh Na
No abstract text is available yet for this article.
December 2016: Journal of Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/28090137/echocardiographic-assessment-of-right-ventricle-adaptation-to-endurance-training-in-young-rowers-speckle-tracking-echocardiography
#5
M Konopka, W Krol, K Burkhard-Jagodzinska, A Jakubiak, A Klusiewicz, J Chwalbinska, A Pokrywka, D Sitkowski, M Dluzniewski, W Braksator
The aim of this study was to determine the relationship between the degree of cardiorespiratory fitness and the function of the right ventricle (RV). 117 rowers, age 17.5±1.5 years. All subjects underwent cardiopulmonary exercise. Standard echocardiography and 2D speckle tracking echocardiography with evaluation of longitudinal strain in each segment of the RV (basal - RVLS-B; mid - RVLS-M, apical - RVLS-A) and global RV free-wall strain (RVLS-G) were performed. RVLS-B values were lower compared to the RVLS-M (-25...
December 2016: Biology of Sport
https://www.readbyqxmd.com/read/28087109/stargazing-or-scientific-yardstick-the-future-of-speckle-tracking-echocardiography-in-the-management-of-ascending-aortic-aneurysm
#6
EDITORIAL
Patrick T Roughneen, Ghannam Al-Dossari, Abe DeAnda
No abstract text is available yet for this article.
December 8, 2016: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28086801/two-dimensional-speckle-tracking-echocardiography-for-evaluation-of-dilative-ascending-aorta-biomechanics
#7
Monika Bieseviciene, Jolanta Justina Vaskelyte, Vaida Mizariene, Rasa Karaliute, Vaiva Lesauskaite, Raimonda Verseckaite
BACKGROUND: Two-dimensional (2D) echocardiography is one of the most feasible, noninvasive methods for assessing the aortic diameter and biomechanical changes. We studied possible interfaces between noninvasive biomechanical and speckle-tracking (ST) echocardiographic data from dilated aortas. METHODS: Altogether, 44 patients with dilative pathology of ascending aorta (DPAA) were compared with subjects without ascending aortic dilation (diameter <40 mm). DPAA patients formed two groups based on diameter size: group 1, ≤45 mm diameter; group 2, >45 mm...
January 13, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28075503/correlation-between-cardiac-rhythm-left-atrial-appendage-flow-velocity-and-cha2-ds2-vasc-score-study-based-on-transesophageal-echocardiography-and-2-dimensional-speckle-tracking
#8
Kun Zuo, Lanlan Sun, Xinchun Yang, Xiuzhang Lyu, Kuibao Li
BACKGROUND: The CHA2 DS2 -VASc score is a classic predictor of stroke in patients with atrial fibrillation (AF). Decreased left atrial appendage flow velocity (LAA-FV) reflects the blood stasis, and left atrial (LA) strain is a manifestation of atrial remodeling. This study aimed to explore the effects of AF rhythm and CHA2 DS2 -VASc score in the development of thrombogenesis and their potential correlation with LAA-FV and LA strain. HYPOTHESIS: AF rhythm and high CHA2 DS2 -VASc score correlate independently with decreased LAA-FV, which can be predicted by LA strain...
January 11, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28075330/building-an-open-source-simulation-platform-of-acoustic-radiation-force-based-breast-elastography
#9
Yu Wang, Bo Peng, Jingfeng Jiang
Ultrasound-based elastography techniques including quasi-static strain elastography (SE), acoustic radiation force Impulse (ARFI) imaging, point shear wave elastography (pSWE) and supersonic shear imaging (SSI) have been used to differentiate breast tumors. The objective of this study is to extend a previously published virtual simulation platform of SE toward acoustic radiation force-based breast elastography. The proposed platform inherited four key components from the previously published virtual SE platform: an ultrasound simulator (Field II), a mesh generator (Tetgen), a finite element (FE) solver (FEBio) and a visualization and data processing package (VTK)...
January 11, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28074824/studying-diastology-with-speckle-tracking-echocardiography-the-essentials
#10
REVIEW
Arindam Choudhury, Rohan Magoon, Vishwas Malik, Poonam Malhotra Kapoor, S Ramakrishnan
Diastolic dysfunction is common in cardiac disease and an important finding independent of systolic function as it contributes to the signs and symptoms of heart failure. Tissue Doppler mitral early diastolic velocity (Ea) combined with peak transmitral early diastolic velocity (E) to obtain E/Ea ratio provides an estimate of the left ventricular (LV) filling pressure. However, E/Ea has a significant gray zone and less reliable in patients with preserved ejection fraction (>50%). Two-dimensional echocardiographic speckle tracking measure myocardial strain and strain rate (Sr) avoiding the Doppler-associated angulation errors and tethering artifacts...
January 2017: Annals of Cardiac Anaesthesia
https://www.readbyqxmd.com/read/28073593/integrative-cardiopulmonary-ultrasound-for-interstitial-lung-disease-assessment-correlation-between-lung-ultrasound-performance-and-cardiac-involvement
#11
Wei-Wei Zhu, Yi-Dan Li, Hong Li, Xiu-Zhang Lu, Ling-Yun Kong, Xiao-Guang Ye, Qi-Zhe Cai, Lan-Lan Sun, Wei Jiang, Li Wang
The aims of this study were to apply integrative cardiopulmonary ultrasound (thoracic ultrasound) to the evaluation of patients with interstitial lung disease (ILD) and to determine the relationship between lung ultrasound signs and echocardiographic parameters such as systolic pulmonary artery pressure (SPAP) and various right ventricular parameters. ILD patients and healthy controls underwent lung ultrasound (LUS) and echocardiographic tests. In addition to traditional echocardiographic parameters, right ventricular free wall longitudinal strain (RVLS_FW) was measured using 2-D speckle-tracking echocardiography...
January 7, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28072551/assessment-of-subclinical-left-ventricular-changes-in-essential-hypertensive-patients-with-hyperuricemia-a-three-dimensional-speckle-tracking-echocardiography-study
#12
Xiaoyan Fang, Cuizhen Pan, Yongle Chen, Minmin Sun, Zhuojun Zhang, Lindi Jiang, Xiaolin Wang, Xianhong Shu
OBJECTIVE: To evaluate the effect of hyperuricemia (HU) on subclinical changes of left ventricle (LV) function and structure in patients with hypertension (HT) using three-dimensional speckle-tracking echocardiography (3DSTE) and to explore the relationships between serum uric acid (SUA) levels and three-dimensional speckle tracking echocardiography (3DSTE) parameters in hypertensive and nonhypertensive patients with HU. METHODS: Four age- and sex-matched groups were studied: I: healthy controls, HT- HU- (n = 40); II: HT- HU+ (n = 40); III: HT+ HU- (n = 40); IV: HT+ HU+ (n = 44)...
January 10, 2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/28071674/predictors-of-exercise-induced-pulmonary-hypertension-in-patients-with-asymptomatic-degenerative-mitral-regurgitation-mechanistic-insights-from-2d-speckle-tracking-echocardiography
#13
Ryo Kamijima, Kengo Suzuki, Masaki Izumo, Shingo Kuwata, Kei Mizukoshi, Manabu Takai, Seisyou Kou, Akio Hayashi, Keisuke Kida, Tomoo Harada, Yoshihiro J Akashi
Presence of exercise-induced pulmonary hypertension (EIPH) in asymptomatic degenerative mitral regurgitation (DMR) determines prognosis. This study aimed to elucidate the mechanism and predictors of EIPH in asymptomatic DMR. Ninety-one consecutive asymptomatic patients with DMR who underwent exercise stress echocardiography were prospectively included. We obtained various conventional echocardiographic parameters at rest and during peak exercise, as well as left atrial (LA) function at rest using 2-dimensional speckle-tracking analysis...
January 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28070903/myocardial-deformation-in-pediatric-patients-with-mucopolysaccharidoses-a-two-dimensional-speckle-tracking-echocardiography-study
#14
Francesco Borgia, Enrica Pezzullo, Vincenzo Schiano Lomoriello, Regina Sorrentino, Francesco Lo Iudice, Sara Cocozza, Roberto Della Casa, Giancarlo Parenti, Pietro Strisciuglio, Bruno Trimarco, Maurizio Galderisi
BACKGROUND: Mucopolysaccharidoses (MPS) are inherited lysosomal storage disorders caused by deficiency of required glycosaminoglycans breakdown enzymes, inducing cardiac involvement. Little is known about myocardial deformation involvement in MPS. Our aim was to assess biventricular structure and function in asymptomatic children with MPS using standard echo Doppler and 2D speckle tracking (STE). METHODS: Fifteen MPS children (one type I, six type II, three type III A, one III B, three IV A, one VI), asymptomatic for cardiac symptoms, and 15 age and sex-matched healthy controls underwent echo Doppler and STE...
January 10, 2017: Echocardiography
https://www.readbyqxmd.com/read/28070881/left-ventricular-function-after-takotsubo-is-not-fully-recovered-in-long-term-follow-up-a-speckle-tracking-echocardiography-study
#15
Radoslaw S Nowak, Marta Fijalkowska, Natasza Gilis-Malinowska, Milosz Jaguszewski, Rafal Galaska, Agnieszka Rojek, Krzysztof Narkiewicz, Marcin Gruchala, Marcin Fijalkowski
BACKGROUND: Complete improvement of left ventricle (LV) systolic function is an essential feature of takotsubo cardiomyopathy (TTC). It is suggested that 2-dimensional speckle tracking echocardiography (2D STE) can evaluate LV dysfunction more accurately than conventional echocardiography. Thus, the purpose of this research was to assertain whether LV function recovery is complete after the acute phase of TTC using 2D STE commencing 6 months after discharge. METHODS: Thirty patients (29 females, 67 ± 11 years) with an apical ballooning TTC pattern 225...
January 10, 2017: Cardiology Journal
https://www.readbyqxmd.com/read/28069573/relations-between-aortic-stiffness-and-left-ventricular-mechanical-function-in-the-community
#16
Vanessa Bell, Elizabeth L McCabe, Martin G Larson, Jian Rong, Allison A Merz, Ewa Osypiuk, Birgitta T Lehman, Plamen Stantchev, Jayashri Aragam, Emelia J Benjamin, Naomi M Hamburg, Ramachandran S Vasan, Gary F Mitchell, Susan Cheng
BACKGROUND: Aortic stiffness impairs optimal ventricular-vascular coupling and left ventricular systolic function, particularly in the long axis. Left ventricular global longitudinal strain (GLS) has recently emerged as a sensitive measure of early cardiac dysfunction. In this study, we investigated the relation between aortic stiffness and GLS in a large community-based sample. METHODS AND RESULTS: In 2495 participants (age 39-90 years, 57% women) of the Framingham Offspring and Omni cohorts, free of cardiovascular disease, we performed tonometry to measure arterial hemodynamics and echocardiography to assess cardiac function...
January 9, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28069473/high-intensity-training-improves-global-and-segmental-strains-in-severe-congestive-heart-failure
#17
Yair Blumberg, Offir Ertracht, Itai Gershon, Noa Bachner-Hinenzon, Tali Reuveni, Shaul Atar
BACKGROUND: High intensity training (HIT) is superior to moderate aerobic training (MAT) for improving quality of life in congestive heart failure (CHF) patients. Speckle tracking echocardiography (STE) has recently been suggested for estimation of left ventricle global and regional function. AIMS: We evaluated the utility of STE for characterizing differences in cardiac function following MAT or HIT in a CHF rat model. METHODS AND RESULTS: Following baseline physiological assessment, CHF was induced by coronary artery ligation in Sprague-Dawley rats...
January 6, 2017: Journal of Cardiac Failure
https://www.readbyqxmd.com/read/28067540/soluble-st2-is-associated-with-disease-severity-in-arrhythmogenic-right-ventricular-cardiomyopathy
#18
Kaspar Broch, Ida S Leren, Jørg Saberniak, Thor Ueland, Thor Edvardsen, Lars Gullestad, Kristina H Haugaa
PURPOSE: Diagnostic and prognostic evaluation remains challenging in arrhythmogenic right ventricular cardiomyopathy (ARVC). We measured plasma concentration of soluble ST2 (sST2) and assessed its association with right ventricular (RV) function and ventricular arrhythmias in patients with ARVC. METHODS: We included patients with ARVC and genotype positive relatives. Soluble ST2 was determined by ELISA. We assessed myocardial function by echocardiography including strain by speckle tracking technique...
January 9, 2017: Biomarkers: Biochemical Indicators of Exposure, Response, and Susceptibility to Chemicals
https://www.readbyqxmd.com/read/28065583/left-ventricular-contraction-pattern-in-chronic-aortic-regurgitation-and-preserved-ejection-fraction-simultaneous-stress-strain-analysis-by-three-dimensional-echocardiography
#19
Kaspar Broch, Stefano F de Marchi, Richard Massey, Jonny Hisdal, Svend Aakhus, Lars Gullestad, Stig Urheim
BACKGROUND: The role of speckle-tracking echocardiography in the assessment of chronic aortic regurgitation (AR) is not established. Load dependency may encumber the interpretation of strain measurements in the chronically overloaded left ventricle. The aim of this study was to investigate the mechanisms of left ventricular (LV) contraction patterns in asymptomatic patients with moderate to severe AR and preserved ejection fractions. METHODS: In this prospective, cross-sectional study, 31 patients with moderate to severe AR, 15 elite endurance athletes, and 17 healthy control subjects were examined using three-dimensional speckle-tracking echocardiography...
January 5, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28065448/left-ventricular-dyssynchrony-and-2d-and-3d-global-longitudinal-strain-for-differentiating-physiological-and-pathological-left-ventricular-hypertrophy
#20
Julien Ternacle, Camille Bremont, Thomas d'Humieres, Laureline Faivre, Huy Long Doan, Romain Gallet, Leopold Oliver, Jean-Luc Dubois-Randé, Pascal Lim
BACKGROUND: Diagnosis of hypertrophic cardiomyopathy (HCM) in athletes can be challenging. AIMS: To ascertain parameters that differentiate patients with HCM from athletes with moderate left ventricular (LV) hypertrophy (LVH 13-15mm). METHODS: We retrospectively included 100 men: 50 elite rugby players (25 with moderate LVH and 25 with no LVH), 25 patients with HCM and moderate LVH and 25 controls. LV dyssynchrony was defined as the standard deviation of time to peak 2D longitudinal strain (16-segment model) and global strain components were computed from two- (2D) and three-dimensional (3D) speckle tracking...
January 3, 2017: Archives of Cardiovascular Diseases
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