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Speckle tracking

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https://www.readbyqxmd.com/read/28740203/homeostatic-left-heart-integration-and-disintegration-links-atrio-ventricular-covariation-s-dyshomeostasis-in-hypertrophic-cardiomyopathy
#1
Paolo Piras, Concetta Torromeo, Antonietta Evangelista, Stefano Gabriele, Giuseppe Esposito, Paola Nardinocchi, Luciano Teresi, Andrea Madeo, Michele Schiariti, Valerio Varano, Paolo Emilio Puddu
Left ventricle and left atrium are and have been practically always analyzed separately in common clinically and non-clinically oriented cardiovascular investigations. Both classic and speckle tracking echocardiographic data contributed to the knowledge about deformational impairments occurring in systo-diastolic differences. Recently new trajectory based approaches allowed a greater awareness about the entire left ventricle or left atrium revolution and on their deficiencies that take place in presence of hypertrophic cardiomyopathy...
July 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28739084/the-repeatability-and-characteristics-of-right-ventricular-longitudinal-strain-imaging-by-speckle-tracking-echocardiography-in-healthy-dogs
#2
T Morita, K Nakamura, T Osuga, N Yokoyama, N Khoirun, K Morishita, N Sasaki, H Ohta, M Takiguchi
INTRODUCTION: To assess the repeatability and characteristics of echocardiographic indices of the right ventricular (RV) function derived from speckle-tracking echocardiography. ANIMALS: Fourteen laboratory Beagles and 103 privately owned dogs without cardiac disease were involved in this study. MATERIALS AND METHODS: Right ventricular longitudinal strain, strain rate, and a strain-related index for assessing RV dyssynchrony derived from speckle-tracking echocardiography were obtained by two different observers using five Beagles...
July 21, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/28736707/abnormal-atrial-strain-with-speckle-tracking-echocardiography-predicts-the-arrhythmic-substrate-of-atypical-right-atrial-flutter
#3
Hiroshi Kawakami, Takayuki Nagai, Katsuji Inoue, Jitsuo Higaki, Shuntaro Ikeda
No abstract text is available yet for this article.
May 2017: HeartRhythm Case Reports
https://www.readbyqxmd.com/read/28733311/regional-septal-hinge-point-injury-contributes-to-adverse-biventricular-interactions-in-pulmonary-hypertension
#4
Eva Amalie Nielsen, Kenichi Okumura, Mei Sun, Vibeke E Hjortdal, Andrew N Redington, Mark K Friedberg
Death and morbidity in pulmonary arterial hypertension (PAH) are often due to right ventricular (RV) failure and associated left ventricular (LV) dysfunction. We investigated regional myocardial remodeling and function as the basis for adverse ventricular-ventricular interactions in experimental chronic RV pressure overload. Two distinct animal models were studied: A rabbit model of increased RV pressure-load through progressive pulmonary artery banding A rat model of monocrotaline (MCT)-induced pulmonary arterial hypertension (PAH)...
July 2017: Physiological Reports
https://www.readbyqxmd.com/read/28728485/factors-associated-with-global-longitudinal-strain-decline-in-hypertensive-patients-with-normal-left-ventricular-ejection-fraction
#5
Nabila Soufi Taleb Bendiab, Abderrahim Meziane-Tani, Souhila Ouabdesselam, Nadera Methia, Samia Latreche, Latefa Henaoui, Jean-Jacques Monsuez, Salim Benkhedda
Background Early detection of risk factors for left ventricular (LV) dysfunction may be useful in patients with high blood pressure (HBP). Methods Patient from an outpatient HBP clinic underwent a two-dimensional Doppler-coupled echocardiography with determination of LV global longitudinal strain (GLS) by speckle-tracking. Results Among 200 patients (mean age 61.7 ± 9.7 years), 155 were overweight, 93 had diabetes, 83 had dyslipidemia, and 109 had uncontrolled HBP. LV hypertrophy (LVH) was found in 136 patients (68%), including concentric ( n = 106) and eccentric ( n = 30) LVH...
January 1, 2017: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/28728481/feasibility-of-two-dimensional-speckle-tracking-in-evaluation-of-arterial-stiffness-comparison-with-pulse-wave-velocity-and-conventional-sonographic-markers-of-atherosclerosis
#6
Michał Podgórski, Piotr Grzelak, Magdalena Kaczmarska, Michał Polguj, Maciej Łukaszewski, Ludomir Stefańczyk
Objective Arterial stiffening is an early marker of atherosclerosis that has a prognostic value for cardiovascular morbidity and mortality. Although many markers of arterial hardening have been proposed, the search is on for newer, more user-friendly and reliable surrogates. One such potential candidate has emerged from cardiology, the speckle-tracking technique. The aim of this study was to evaluate the feasibility of the two-dimensional speckle tracking for the evaluation of arterial wall stiffness in comparison with standard stiffness parameters...
January 1, 2017: Vascular
https://www.readbyqxmd.com/read/28727745/evaluation-of-tissue-displacement-and-regional-strain-in-the-achilles-tendon-using-quantitative-high-frequency-ultrasound
#7
Stijn Bogaerts, Catarina De Brito Carvalho, Lennart Scheys, Kaat Desloovere, Jan D'hooge, Frederik Maes, Paul Suetens, Koen Peers
The Achilles tendon has a unique structure-function relationship thanks to its innate hierarchical architecture in combination with the rotational anatomy of the sub-tendons from the triceps surae muscles. Previous research has provided valuable insight in global Achilles tendon mechanics, but limitations with the technique used remain. Furthermore, given the global approach evaluating muscle-tendon junction to insertion, regional differences in tendon mechanical properties might be overlooked. However, recent advancements in the field of ultrasound imaging in combination with speckle tracking have made an intratendinous evaluation possible...
2017: PloS One
https://www.readbyqxmd.com/read/28721692/left-ventricular-mechanics-are-affected-in-children-with-celiac-disease-a-study-based-on-two-dimensional-speckle-tracking-echocardiography
#8
Murat Deveci, Ayşen Uncuoğlu Aydoğan, Gürkan Altun, Özlem Kayabey, Okan Tuğral, Kadir Babaoğlu
BACKGROUND: An association between cardiomyopathy and celiac disease has been reported, but not frequently. We examined the effects on cardiac mechanics in children with celiac disease (CD) by two-dimensional speckle tracking echocardiography (2DSTE). METHODS: Eighty-one children with CD were compared with a control group comprising 51 healthy children by echocardiographic examination. Children with CD who had been on gluten-free diet for more than 6 months were divided into two different groups: group 1 was positive for serum antitissue transglutaminase antibody (n=48), and group 2 was negative for serum antitissue transglutaminase antibody (n=33)...
July 18, 2017: Echocardiography
https://www.readbyqxmd.com/read/28714523/echocardiographic-parameters-versus-cha2ds2-vasc-score-in-prediction-of-overall-cardiac-events-heart-failure-and-stroke-in-non-valvular-atrial-fibrillation
#9
Li-Tan Yang, Wei-Chuan Tsai, Ho-Ming Su
BACKGROUND: Apart from stroke, atrial fibrillation (AF) is associated with higher mortality and heart failure (HF), in which risk stratification scheme is lacking. Therefore this investigation examined the prognostic value of echocardiographic predictors against CHA₂DS₂-VASc score in permanent non-valvular AF (NVAF). METHOD: In 252 asymptomatic or mildly symptomatic consecutive patients with NVAF, comprehensive echocardiography was performed. Left atrial deformation parameters were also obtained by two-dimensional speckle tracking echocardiography...
July 17, 2017: Cardiology Journal
https://www.readbyqxmd.com/read/28712069/left-atrial-dysfunction-as-a-determinant-of-pulmonary-hypertension-in-patients-with-severe-aortic-stenosis-and-preserved-left-ventricular-ejection-fraction
#10
Andreea Calin, Anca D Mateescu, Monica Rosca, Carmen C Beladan, Roxana Enache, Simona Botezatu, Iulian Cosei, Cosmin Calin, Marian Simion, Carmen Ginghina, Andreea C Popescu, Bogdan A Popescu
In patients with severe aortic stenosis (AS), the presence of pulmonary hypertension (PH) has been linked to a poor prognosis. We aimed to assess the main determinants of PH in patients with severe AS and preserved left ventricular ejection fraction (LVEF). We prospectively enrolled 108 consecutive patients with isolated severe AS (indexed aortic valve area <0.6 cm(2)/m(2)) and LVEF >50%, in sinus rhythm. Left atrial (LA) function was assessed using longitudinal deformation parameters (by speckle tracking echocardiography)...
July 15, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28701530/the-good-the-bad-and-the-ugly-of-using-left-ventricular-longitudinal-myocardial-deformation-by-speckle-tracking-echocardiography-to-assess-patients-after-an-acute-myocardial-infarction
#11
EDITORIAL
Luigi P Badano, Denisa Muraru
No abstract text is available yet for this article.
July 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28701527/relationship-between-myocardial-function-body-mass-index-and-outcome-after-st-segment-elevation-myocardial-infarction
#12
Emer Joyce, Georgette E Hoogslag, Vasileios Kamperidis, Philippe Debonnaire, Spyridon Katsanos, Bart Mertens, Nina Ajmone Marsan, Jeroen J Bax, Victoria Delgado
BACKGROUND: Better survival for overweight and obese patients after ST-segment-elevation myocardial infarction (STEMI) has been demonstrated. The association between body mass index (BMI), outcome, and left ventricular (LV) structure and function after STEMI, including LV longitudinal strain (global longitudinal strain), was evaluated. METHODS AND RESULTS: First patients with STEMI undergoing primary percutaneous coronary intervention (n=1604; mean age, 61±12 years; 75% men) had BMI measured on admission, and 2-dimensional transthoracic echocardiography performed within 48 hours...
July 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28700019/assessment-of-subclinical-doxorubicin-induced-cardiotoxicity-in-a-rat-model-by-speckle-tracking-imaging
#13
Yu Kang, Wei Wang, Hang Zhao, Zhiqing Qiao, Xuedong Shen, Ben He
Backgrounds: Despite their clear therapeutic benefits, anthracycline-induced cardiotoxicity is a major concern limiting the ability to reduce morbidity and mortality associated with cancers. The early identification of anthracycline-induced cardiotoxicity is of vital importance to assess the cardiac risk against the potential cancer treatment. Objective: To investigate whether speckle-tracking analysis can provide a sensitive and accurate measurement when detecting doxorubicin-induced left ventricular injury...
July 10, 2017: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/28697490/the-influence-of-blood-pressure-on-fetal-aortic-distensibility-an-animal-validation-study
#14
Christoph Wohlmuth, Kenneth J Moise, Ramesha Papanna, Ciprian Gheorghe, Anthony Johnson, Yisel Morales, Helena M Gardiner
BACKGROUND/AIMS: Aortic distension waveforms describe the change in diameter or cross-sectional area over the cardiac cycle. We aimed to validate the association of aortic fractional area change (AFAC) with blood pressure (BP) in a fetal lamb model. METHODS: Four pregnant ewes underwent open fetal surgery under general anesthesia at 107-120 gestational days. A 4-Fr catheter was introduced into the fetal femoral artery and vein, or the carotid artery and jugular vein...
July 12, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28695377/ventricular-dyssynchrony-assessment-using-ultra-high-frequency-ecg-technique
#15
Pavel Jurak, Josef Halamek, Jaroslav Meluzin, Filip Plesinger, Tereza Postranecka, Jolana Lipoldova, Miroslav Novak, Vlastimil Vondra, Ivo Viscor, Ladislav Soukup, Petr Klimes, Petr Vesely, Josef Sumbera, Karel Zeman, Roshini S Asirvatham, Jason Tri, Samuel J Asirvatham, Pavel Leinveber
PURPOSE: The aim of this proof-of-concept study is to introduce new high-dynamic ECG technique with potential to detect temporal-spatial distribution of ventricular electrical depolarization and to assess the level of ventricular dyssynchrony. METHODS: 5-kHz 12-lead ECG data was collected. The amplitude envelopes of the QRS were computed in an ultra-high frequency band of 500-1000 Hz and were averaged (UHFQRS). UHFQRS V lead maps were compiled, and numerical descriptor identifying ventricular dyssynchrony (UHFDYS) was detected...
July 10, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/28691201/combined-myocardial-deformation-to-predict-cardiac-resynchronization-therapy-response-in-non-ischemic-cardiomyopathy
#16
Ning Yang, Zhao-Guang Liang, Zhao-Jun Wang, Hui Liu, Chao Chi, Yan-Feng Tian, Shu-Han Qi, Bi-Yu Wang, Wei Han
BACKGROUND: 20-30% of patients do not benefit from CRT when the established selection criteria were applied. We hypothesized that a combined assessment of mechanical dyssynchrony, myocardial deformation and diastolic function would identify patients who would benefit most from CRT. METHOD: In 36 CRT patients, clinical evaluation and echocardiography were performed before and after CRT. Patients were classified into 3 subgroups according to their amount of response: echocardiographic responders, clinical responders, and nonresponders...
July 10, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28689753/comparison-of-left-ventricular-function-and-myocardial-infarct-size-determined-by-2-dimensional-speckle-tracking-echocardiography-in-patients-with-and-without-chronic-obstructive-pulmonary-disease-after-st-segment-elevation-myocardial-infarction
#17
Laurien Goedemans, Rachid Abou, Georgette E Hoogslag, Nina Ajmone Marsan, Christian Taube, Victoria Delgado, Jeroen J Bax
Patients with chronic obstructive pulmonary disease (COPD) have a high risk of mortality after acute ST-segment elevation myocardial infarction (STEMI). We compared STEMI patients with versus without COPD in terms of infarct size and left ventricular (LV) systolic function using advanced 2-dimensional speckle tracking echocardiography. Of 1,750 patients with STEMI (mean age 61 ± 12 years, 76% male), 133 (7.6%) had COPD. With transthoracic echocardiography, left ventricular ejection fraction (LVEF) and wall motion score index were measured...
June 15, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28688858/a-comprehensive-review-of-stress-testing-in-hypertrophic-cardiomyopathy-assessment-of-functional-capacity-identification-of-prognostic-indicators-and-detection-of-coronary-artery-disease
#18
REVIEW
Albree Tower-Rader, Jorge Betancor, Harry M Lever, Milind Y Desai
Hypertrophic cardiomyopathy is a heterogeneous condition that may present with functional limitation due to dyspnea on exertion, angina, or symptoms of heart failure. Although angina is a common symptom, it is thought to be multifactorial, including abnormal microvasculature and epicardial coronary artery disease. The role of stress testing in the detection of coronary artery disease and its limitations are discussed in this review. Stress testing yields additional information beyond the detection of ischemia, which is prognostic independent of the presence of coronary artery disease and can be beneficial in defining the presence of provocable left ventricular outflow tract obstruction, symptoms, response of heart rate and blood pressure to exercise, and functional capacity...
July 6, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28685376/erratum-to-evaluation-of-cardiac-functions-in-juvenile-systemic-lupus-erythematosus-with-two-dimensional-speckle-tracking-echocardiography
#19
Reyhan Dedeoglu, Sezgin Şahin, Aida Koka, Funda Öztunç, Amra Adroviç, Kenan Barut, Dicle Cengiz, Özgür Kasapçopur
No abstract text is available yet for this article.
July 6, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28685315/clinical-feasibility-and-validation-of-3d-principal-strain-analysis-from-cine-mri-comparison-to-2d-strain-by-mri-and-3d-speckle-tracking-echocardiography
#20
Alessandro Satriano, Bobak Heydari, Mariam Narous, Derek V Exner, Yoko Mikami, Monica M Attwood, John V Tyberg, Carmen P Lydell, Andrew G Howarth, Nowell M Fine, James A White
Two-dimensional (2D) strain analysis is constrained by geometry-dependent reference directions of deformation (i.e. radial, circumferential, and longitudinal) following the assumption of cylindrical chamber architecture. Three-dimensional (3D) principal strain analysis may overcome such limitations by referencing intrinsic (i.e. principal) directions of deformation. This study aimed to demonstrate clinical feasibility of 3D principal strain analysis from routine 2D cine MRI with validation to strain from 2D tagged cine analysis and 3D speckle tracking echocardiography...
July 6, 2017: International Journal of Cardiovascular Imaging
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