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"Speckle-tracking"

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https://www.readbyqxmd.com/read/28822669/left-ventricular-lead-position-guided-by-parametric-strain-echocardiography-improves-response-to-cardiac-resynchronization-therapy
#1
Donato Mele, Marianna Nardozza, Michele Malagù, Emanuela Leonetti, Cristina Fragale, Antonio Rondinella, Roberto Ferrari, Matteo Bertini
BACKGROUND: There is still a significant proportion of patients with heart failure who fail to improve after cardiac resynchronization therapy (CRT). The investigators used parametric two-dimensional speckle-tracking echocardiography with polar plots of the amplitude and timing of left ventricular (LV) longitudinal strain to guide implantation of the LV lead, with the aim of increasing CRT response. METHODS: Sixty-four patients who underwent LV lead implantation guided by two-dimensional speckle-tracking echocardiography (study group) and 64 patients treated with standard CRT implantation (control group) were retrospectively analyzed in this study...
August 16, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28816145/strain-imaging-detects-dose-dependent-segmental-cardiac-dysfunction-in-the-acute-phase-after-breast-irradiation
#2
Queenie Lo, Leia Hee, Vikneswary Batumalai, Christine Allman, Peter MacDonald, Denise Lonergan, Geoff P Delaney, Liza Thomas
PURPOSE: We examined the utility of echocardiographic 2-dimensional speckle tracking strain imaging (SI) for the evaluation of segmental myocardial dysfunction before and after radiation therapy (RT) and the relationship to dose exposure. METHODS AND MATERIALS: We prospectively recruited 40 women with left-sided breast cancer, undergoing only adjuvant RT to the left chest. Comparisons of traditional echocardiographic parameters and SI parameters at baseline and 6 weeks after RT were analyzed...
September 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28810550/2d-sti-combined-with-gated-99-tc-m-mibi-mpi-for-the-diagnosis-of-myocardial-ischemia-in-hypercholesterolemia-patients
#3
Yi Song, Rui-Fang Zhang, Yu Liu
This study aimed to investigate the reliability of ultrasound two-dimensional speckle tracking imaging (2D-STI) for the evaluation of myocardial ischemia in familial hypercholesterolemia (FH) patients. We recruited 28 patients clinically diagnosed with homozygous familial hypercholesterolemia (HoFH) and subjected them to 2D-STI, gated transthoracic Doppler echocardiography (TTDE), and (99)Tc(m)-methoxyisobutylisonitrile myocardial perfusion imaging ((99)Tc(m)-MIBI MPI). The sensitivity, specificity and diagnostic accordance rate of TTDE and 2D-STI for myocardial ischemia in HoFH patients were compared with the (99)Tc(m)-MIBI scores...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28803684/role-of-two-dimensional-speckle-tracking-echocardiography-strain-in-the-assessment-of%C3%A2-right-ventricular-systolic-function-and-comparison-with-conventional-parameters
#4
REVIEW
Luca Longobardo, Valentin Suma, Renuka Jain, Scipione Carerj, Concetta Zito, Dianne L Zwicke, Bijoy K Khandheria
Despite the already well-known role the right side of the heart plays in many diseases, right ventricular (RV) function has only recently been carefully considered. Echocardiography is the first-line diagnostic technique for the assessment of the right ventricle and right atrium, whereas cardiac magnetic resonance is considered the gold standard but is limited by cost and availability. According to the current guidelines, systolic RV function should be assessed by several conventional measurements, but the efficacy of these parameters as diagnostic and prognostic tools has been questioned by many authors...
August 10, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28802742/the-challenges-of-measuring-in-vivo-knee-collateral-ligament-strains-using-ultrasound
#5
Laura C Slane, Josh A Slane, Jan D'hooge, Lennart Scheys
Ultrasound-based methods have shown promise in their ability to characterize non-uniform deformations in large energy-storing tendons such as the Achilles and patellar tendons, yet applications to other areas of the body have been largely unexplored. The noninvasive quantification of collateral ligament strain could provide an important clinical metric of knee frontal plane stability, which is relevant in ligament injury and for measuring outcomes following total knee arthroplasty. In this pilot cadaveric experiment, we investigated the possibility of measuring collateral ligament strain with our previously validated speckle-tracking approach, but encountered a number of challenges during both data acquisition and processing...
July 31, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28802566/alcohol-use-and-cardiovascular-disease-risk-in-patients-with-nonalcoholic-fatty-liver-disease
#6
Lisa B VanWagner, Hongyan Ning, Norrina B Allen, Veeral Ajmera, Cora E Lewis, John Jeffrey Carr, Donald M Lloyd-Jones, Norah A Terrault, Juned Siddique
BACKGROUND & AIMS: Cardiovascular disease (CVD) is the leading cause of death among patients with non-alcoholic fatty liver disease (NAFLD). Moderate drinking (vs abstinence) is associated with lower risk of CVD in the general population. We assessed whether alcohol use is associated with CVD risk in patients with NAFLD. METHODS: We analyzed data from participants in the Coronary Artery Risk Development in Young Adults longitudinal cohort study of 5115 black and white young adults, 18-30 years old, recruited from 4 cities in the United States from 1985 through 1986...
August 9, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28802483/left-ventricular-systolic-myocardial-deformation-a%C3%A2-comparison-of-two-and-three-dimensional-echocardiography-in-children
#7
Sowmya Balasubramanian, Rajesh Punn, Shea N Smith, Helene Houle, Theresa A Tacy
BACKGROUND: The clinical applicability and reliability of three-dimensional (3D) speckle-tracking echocardiography has not been well studied in pediatric patients. The aim of this study was to compare two-dimensional (2D) echocardiography and 3DE real-time full-volume-derived strain and rotation indices in healthy children and patients with dilated cardiomyopathy (DCM). METHODS: Children with either normal function or DCM were prospectively recruited in an outpatient setting, and deformation indices, including circumferential, radial, and longitudinal strain and torsion, were measured by 2D and 3D echocardiography...
August 9, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28801894/increased-apical-rotation-in-patients-with-severe-aortic-stenosis-assessed-by-three-dimensional-speckle-tracking-imaging
#8
Maidar Tumenbayar, Kazuto Yamaguchi, Hiroyuki Yoshitomi, Akihiro Endo, Kazuaki Tanabe
BACKGROUND: Two-dimensional (2D) speckle tracking imaging (STI) is a non-invasive method used to assess subtle changes in left ventricular (LV) function such as strain and rotational dynamics. However, 2D methodology is complicated by issues such as the out-of-plane problem inherent in short-axis imaging. In addition, circumferential rotation contributes to three-dimensional (3D) wall deformations and affects tracking accuracy. By using 3D-STI technique, we evaluated LV global longitudinal strain (GLS) and apical rotation in severe aortic stenosis (AS) patients with preserved LV ejection fraction (EF)...
August 11, 2017: Journal of Echocardiography
https://www.readbyqxmd.com/read/28797723/left-ventricular-global-strain-analysis-by-two-dimensional-speckle-tracking-echocardiography-the-learning-curve
#9
Jonathan Chan, Kenji Shiino, Nchafatso G Obonyo, Joseph Hanna, Robert Chamberlain, Andrew Small, Isabel G Scalia, William Scalia, Akira Yamada, Christian R Hamilton-Craig, Gregory M Scalia, Jose Luis Zamorano
BACKGROUND: The application of left ventricular (LV) global strain by speckle-tracking is becoming more widespread, with the potential for incorporation into routine clinical echocardiography in selected patients. There are no guidelines or recommendations for the training requirements to achieve competency. The aim of this study was to determine the learning curve for global strain analysis and determine the number of studies that are required for independent reporting. METHODS: Three groups of novice observers (cardiology fellows, cardiac sonographers, medical students) received the same standardized training module prior to undertaking retrospective global strain analysis on 100 patients over a period of 3 months...
August 7, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28795671/-two-dimensional-speckle-tracking-imaging-in-assessing-the-left-ventricular-systolic-function-and-its-dynamic-changes-of-patients-with-septic-shock
#10
Fei Yang, Yong Chen, Ruiqiang Zheng, Yong Ma, Haidi Yu, Wenjuan Zhang, Yang Zhang
OBJECTIVE: To evaluate early and dynamic changes of the left ventricular systolic function of patients with septic shock by two-dimensional speckle tracking imaging (2D-STI), and to provide guidance for treatment and prognosis. METHODS: Fifty-eight septic shock patients admitted to intensive care unit (ICU) of Subei People's Hospital from January 2016 to April 2017 were enrolled. The septic shock patients were given early fluid resuscitation. The left ventricular end-diastolic volume (LVEDV), left ventricular end-systolic volume (LVESV), left ventricular ejection fraction (LVEF), early diastolic mitral flow velocity/early diastolic mitral annular peak velocity (E/Em) were obtained by conventional echocardiography, and the left ventricular global longitudinal strain (GLS), global circumferential strain (GCS), global radial strain (GRS) were obtained by 2D-STI before fluid resuscitation and 1, 3, 7, 14 days after fluid resuscitation...
August 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28790928/enhanced-right-chamber-remodeling-in-endurance-ultra-trail-athletes-compared-to-marathon-runners-detected-by-standard-and-speckle-tracking-echocardiography
#11
Kristian Ujka, Luca Bastiani, Gennaro D'Angelo, Bruna Catuzzo, Alessandro Tonacci, Simona Mrakic-Sposta, Alessandra Vezzoli, Guido Giardini, Lorenza Pratali
Background: Strenuous and endurance exercise training have been associated with morphological and functional heart remodeling. Two-dimensional speckle-tracking echocardiography (STE) is a novel technique that allows an accurate quantification of global myocardium deformation. Our aim was to evaluate together left and right cardiac remodeling in different long-distance running athletes: marathon runners (42 km) (M) and endurance mountain runners (>300 Km) (UT). Methods: A total of 92 athletes (70 males, 76%) including 47 M [age 45 ± 7 years; training: 18 (9-53) years(*)days/week], 45 UT [age 42 ± 9, training: 30 (15-66) years(*)days/week] underwent conventional echocardiography and STE (Beyond Diogenes 2...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28789617/left-ventricular-longitudinal-function-assessment-in-rabbits-after-acute-occlusion-of-left-anterior-descending-coronary-artery-by-two-dimensional-speckle-tracking-imaging
#12
Jun Huang, Zi-Ning Yan, Li Fan, Yi-Fei Rui, Xiang-Ting Song
ABSTACT: BACKGROUND: To evaluate the left ventricular (LV) longitudinal function changes in rabbits after acute occlusion of the left anterior descending artery (LAD) by two-dimensional speckle tracking imaging (2D-STI). METHODS: Forty-eight New Zealand white rabbits underwent echocardiography examination. EchoPAC was used to measure LV peak systolic longitudinal strain (LS) of the endocardium, middle myocardium, and epicardium, peak longitudinal strain rate (LSr), segmental and global longitudinal rotation (LR) degrees...
August 8, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28776114/quantitative-evaluation-of-longitudinal-strain-in-layer-specific-myocardium-in-patients-with-preeclampsia
#13
Juan Cong, Yong Lee, Xiuxiu Fu, Zhibin Wang, Wugang Wang, Junfang Lee
Preeclampsia (PE) remains a main cause of maternal morbidity and mortality during pregnancy. Vascular spasm and ischemic damage play the primary role in the presentation of PE. The aim of this study was to assess the longitudinal strain (LS) in each of the three myocardial layers in patients with PE using the layer-specific strain. Forty-five PE women and forty-one normotensive pregnant women were included. Layer-specific LS were assessed in endocardium, mid-myocardium, and epicardium by 2-dimensional (2D) speckle-tracking echocardiography (STE)...
August 3, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28774643/transesophageal-echocardiography-3-dimensional-and-speckle-tracking-together-as-sensitive-markers-for-early-outcome-in-patients-with-left-ventricular-dysfunction-undergoing-cardiac-surgery
#14
Alok Kumar, Goverdhan Dutt Puri, Ajay Bahl
OBJECTIVE: Speckle tracking, when combined with 3-dimensional (3D) left ventricular ejection fraction, might prove to be a more sensitive marker for postoperative ventricular dysfunction. This study investigated early outcomes in a cohort of patients with left ventricular dysfunction undergoing cardiac surgery. DESIGN: Prospective, blinded, observational study. SETTING: University hospital; single institution. PARTICIPANTS: The study comprised 73 adult patients with left ventricular ejection fraction <50% undergoing cardiac surgery using cardiopulmonary bypass...
April 5, 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28774377/association-of-estimated-sodium%C3%A2-intake%C3%A2-with-adverse-cardiac-structure-and%C3%A2-function-from-the-hypergen-study
#15
Senthil Selvaraj, Luc Djoussé, Frank G Aguilar, Eva E Martinez, Vincenzo B Polsinelli, Marguerite R Irvin, Donna K Arnett, Sanjiv J Shah
BACKGROUND: The optimal level of sodium intake remains controversial. OBJECTIVES: This study sought to determine whether examination of left ventricular longitudinal strain (LS), circumferential strain, and e' velocity can provide insight into thresholds for the detrimental effects of estimated sodium intake (ESI) on subclinical cardiovascular disease. METHODS: We performed speckle-tracking analysis on HyperGEN (Hypertension Genetic Epidemiology Network) study echocardiograms with available urinary sodium data (N = 2,996)...
August 8, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28770692/effect-of-high-dose-oral-cholecalciferol-on-cardiac-mechanics-in-children-with-chronic-kidney-disease
#16
Murat Deveci, Mehmet Baha Aytaç, Gürkan Altun, Özlem Kayabey, Kadir Babaoğlu
Cardiovascular factors are an important cause of mortality in chronic kidney disease, and vitamin-D deficiency is common in this patient population. Therefore, we aimed to investigate the effect of oral cholecalciferol on cardiac mechanics in children with chronic kidney disease. A total of 41 children with chronic kidney disease - the patient group - and 24 healthy subjects - the control group - free of any underlying cardiac or renal disease with low 25-hydroxyvitamin-D3 levels were evaluated by conventional tissue Doppler imaging and two-dimensional speckle-tracking echocardiography, both at baseline and following Stoss vitamin-D supplementation...
August 3, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28770456/detection-of-myocardial-iron-overload-by-two-dimensional-speckle-tracking-in-patients-with-beta-thalassaemia-major-a-combined-echocardiographic-and-t2-segmental-cmr-study
#17
Fausto Pizzino, Antonella Meloni, Anna Terrizzi, Tommaso Casini, Anna Spasiano, Carlo Cosmi, Massimo Allò, Concetta Zito, Scipione Carerj, Giovanni Donato Aquaro, Gianluca Di Bella, Alessia Pepe
We aimed to evaluate the role of two-dimensional speckle tracking imaging (2DSTI) in detecting early changes of myocardial deformation in patients affected by thalassemia major (TM) and its relation with myocardial iron overload (MIO) detected by T2* cardiovascular magnetic resonance (CMR). We studied 28 TM patients (15 males, 37.4 ± 10 years). All patients underwent CMR and echocardiography in the same day. Segmental and global T2* values were measured. Values of global longitudinal strain (GLS) were derived from the three apical views, while radial and circumferential strain were obtained as average strain from the short axis views at basal, mid and apical level...
August 2, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28768580/2d-speckle-tracking-right-ventricular-strain-to-assess-right-ventricular-systolic-function-in-systolic-heart-failure-analysis-of-the-right-ventricular-free-and-posterolateral-walls
#18
Stéphanie Mouton, Héléne Ridon, Marie Fertin, Anju Duva Pentiah, Céline Goémine, Grégory Petyt, Nicolas Lamblin, Augustin Coisne, Claude Foucher-Hossein, David Montaigne, Pascal de Groote
BACKGROUND: Right ventricular (RV) systolic function is a powerful prognostic factor in patients with systolic heart failure. The accurate estimation of RV function remains difficult. The aim of the study was to determine the diagnostic accuracy of 2D-speckle tracking RV strain in patients with systolic heart failure, analyzing both free and posterolateral walls. METHODS: Seventy-six patients with dilated cardiopathy (left ventricular end-diastolic volume≥75ml/m(2)) and left ventricular ejection fraction≤45% had an analysis of the RV strain...
July 25, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28768478/left-ventricular-systolic-function-changes-in-hypertrophic-cardiomyopathy-patients-detected-by-the-strain-of-different-myocardium-layers-and-longitudinal-rotation
#19
Jun Huang, Zi-Ning Yan, Li Fan, Yi-Fei Rui, Xiang-Ting Song
BACKGROUND: Impairment of left ventricular (LV) longitudinal function has an important role in hypertrophic cardiomyopathy (HCM). This research investigated an association between the longitudinal strain of different myocardial layers, longitudinal rotation and the LV systolic function of HCM patients. METHODS: The research was performed on 36 HCM patients and 36 healthy subjects. The peak systolic longitudinal strain of the subendocardial, midmyocardial, and subepicardial layers was measured using 2-dimensional speckle tracking echocardiography (2D-STE)...
August 2, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28766162/intramyocardial-dissecting-hematoma-in-anterior-wall-st-elevation-myocardial-infarction-impact-on-left-ventricular-remodeling-and-prognosis
#20
Letizia Spinelli, Eugenio Stabile, Giuseppe Giugliano, Carmine Morisco, Caterina Anna Giudice, Massimo Imbriaco, Mario Santoro, Giovanni Esposito, Bruno Trimarco
Intramyocardial dissecting hematoma is an uncommon complication of myocardial infarction potentially leading to cardiac rupture. The aim of the present study was to investigate coronary reperfusion results, left ventricular (LV) function recovery and remodeling and clinical outcomes in patients with anterior STEMI complicated by intramyocardial hematoma. We prospectively studied 87 patients (mean age 59 ± 10 years; 88% male) with anterior STEMI (42 with intramyocardial hematoma) in order to evaluate coronary reperfusion results, LV remodeling (≥15% increase in end-systolic volume) and clinical outcomes (cardiac death, non-fatal reinfarction, and hospitalization for congestive heart failure) at 24 months...
August 1, 2017: International Journal of Cardiovascular Imaging
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