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"Speckle-tracking"

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https://www.readbyqxmd.com/read/29663505/global-and-regional-left-ventricular-circumferential-strain-during-incremental-cycling-and-isometric-knee-extension-exercise
#1
Alexander Beaumont, Nicholas Sculthorpe, John Hough, Viswanath Unnithan, Joanna Richards
BACKGROUND: The objective of this study was to investigate left ventricular (LV) circumferential strain responses to incremental cycling and isometric knee extension exercises. METHODS: Twenty-six healthy male participants (age = 30 ± 6 years) were used to study LV global (GCS) and regional circumferential strain at the apex (ACS) and base (BCS) during incremental cycling at 30% and 60% work rate maximum (Wmax ) and short-duration (15 seconds contractions) isometric knee extensions at 40% and 75% maximum voluntary contraction (MVC) using two-dimensional speckle tracking echocardiography...
April 16, 2018: Echocardiography
https://www.readbyqxmd.com/read/29661525/a-preliminary-study-of-left-ventricular-rotational-mechanics-in-children-with-noncompaction-cardiomyopathy-do-they-influence-ventricular-function
#2
Hythem M Nawaytou, Andrea E Montero, Putri Yubbu, Renzo J C Calderón-Anyosa, Tomoyuki Sato, Matthew J O'Connor, Kelley D Miller, Philip C Ursell, Julien I E Hoffman, Anirban Banerjee
BACKGROUND: Current diagnostic criteria for noncompaction cardiomyopathy (NCC) lack specificity, and the disease lacks prognostic indicators. Reverse apical rotation (RAR) with abnormal rotation of the cardiac apex in the same clockwise direction as the base has been described in adults with NCC. The aim of this study was to test the hypothesis that RAR might differentiate between symptomatic NCC and benign hypertrabeculations and might be associated with ventricular dysfunction. METHODS: Echocardiograms from 28 children with NCC without cardiac malformations were prospectively compared with those from 29 age-matched normal control subjects...
April 13, 2018: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/29655509/reduced-right-ventricular-fractional-area-change-strain-and-strain-rate-before-bidirectional-cavopulmonary-anastomosis-is-associated-with-medium-term-mortality-for-children-with-hypoplastic-left-heart-syndrome
#3
Lily Q Lin, Jennifer Conway, Silvia Alvarez, Benjamin Goot, Jesus Serrano-Lomelin, Timothy Colen, Edythe B Tham, Shelby Kutty, Ling Li, Nee Scze Khoo
BACKGROUND: Ventricular dysfunction is associated with increased morbidity and mortality in children with hypoplastic left heart syndrome. The aim of this study was to assess the diagnostic performance of conventional and speckle-tracking echocardiographic measures of right ventricular (RV) function before bidirectional cavopulmonary anastomosis palliation in predicting death or need for heart transplantation (HTx). METHODS: RV fractional area change (RVFAC) and longitudinal and circumferential strain and strain rate (SR) were measured in 64 prospectively recruited patients with hypoplastic left heart syndrome from echocardiograms obtained before bidirectional cavopulmonary anastomosis surgery...
April 12, 2018: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/29651605/diagnostic-role-of-strain-imaging-in-atypical-myocarditis-by-echocardiography-and-cardiac-mri
#4
Bethany L Wisotzkey, Brian D Soriano, Erin L Albers, Mark Ferguson, Sujatha Buddhe
BACKGROUND: The diagnosis of myocarditis presenting as isolated acute chest pain with elevated troponins but normal systolic function is challenging with significant drawbacks even for the gold-standard endomyocardial biopsy. OBJECTIVE: This study aimed to evaluate the diagnostic role of strain imaging by echocardiography and cardiac MRI in these patients. MATERIALS AND METHODS: This was a retrospective review of children with cardiac MRI for acute chest pain with elevated troponins compared to normal controls...
April 13, 2018: Pediatric Radiology
https://www.readbyqxmd.com/read/29650434/importance-of-three-dimensional-speckle-tracking-in-the-assessment-of-left-atrial-and-ventricular-dysfunction-in-patients-with-myotonic-dystrophy-type-1
#5
Henrique Guedes, Nuno Moreno, Rui Pontes Dos Santos, Leonor Marques, Daniel Seabra, Adriana Pereira, Aurora Andrade, Paula Pinto
INTRODUCTION AND AIM: Myotonic dystrophy type 1 (DM1) is a multisystem disease in which cardiac involvement is common. The aim of this study was to identify early changes in left atrial (LA) mechanics and left ventricular (LV) systolic function in patients with myotonic dystrophy type 1 using three-dimensional (3D) speckle tracking echocardiography (3D-STE). METHODS: This observational study included 25 patients with DM1 and 25 healthy volunteers. We assessed LA and LV global strain parameters using 3D-STE...
April 9, 2018: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/29648690/incremental-value-of-left-atrial-active-function-measured-by-speckle-tracking-echocardiography-in-patients-with-hypertrophic-cardiomyopathy
#6
Kaori Fujimoto, Katsuji Inoue, Makoto Saito, Haruhiko Higashi, Tamami Kono, Teruyoshi Uetani, Jun Aono, Takayuki Nagai, Kazuhisa Nishimura, Jun Suzuki, Takafumi Okura, Shuntaro Ikeda, Satoshi Nakatani, Jitsuo Higaki
PURPOSE: Hypertrophic cardiomyopathy (HCM) impairs left ventricular (LV) diastolic function leading to left atrial (LA) dilatation. Because Doppler echocardiography cannot accurately assess LV diastolic function in hearts with heterogeneous hypertrophy, assessment of LA function might be useful for risk stratification of patients with HCM. This study aimed to elucidate the impact of LA function on outcome in patients with patients. METHODS: Seventy-six patients with HCM who underwent echocardiographic and cardiac magnetic resonance imaging were retrospectively enrolled...
April 12, 2018: Echocardiography
https://www.readbyqxmd.com/read/29648414/assessment-of-left-ventricular-ejection-fraction-in-critically-ill-patients-at-the-time-of-speckle-tracking-echocardiography-intensivists-in-training-for-echocardiography-versus-experienced-operators
#7
Federico Franchi, Matteo Cameli, Fabio S Taccone, Loredana Mazzetti, Elisa Bigio, Martina Contorni, Sergio Mondillo, Sabino Scolletta
BACKGROUND: The biplane Simpson's method is considered the gold standard to assess and monitor left ventricular (LV) ejection fraction (EF) in critically ill patients. Recently, a new semiautomatic technique based on speckle tracking echocardiography called "Auto-EF" has been introduced. We compared LVEF values obtained with biplane Simpson's method and Auto-EF by two groups of operators: trainee echocardiography intensivists and experienced echocardiographers. METHODS: A standard transthoracic echocardiography was performed on 37 patients...
April 12, 2018: Minerva Anestesiologica
https://www.readbyqxmd.com/read/29644405/abnormalities-in-left-ventricular-rotation-are-inherent-in-young-children-with-repaired-tetralogy-of-fallot-and-are-independent-of-right-ventricular-dilation
#8
Ruchika Karnik, Santosh C Uppu, Meghan Tozzi, John Doucette, Irene D Lytrivi, Miwa Geiger, Berthold Klas, Ira A Parness, Rajesh Shenoy, Hari Rajagopal, Shubhika Srivastava
Left ventricular (LV) dysfunction is a risk factor for adverse outcomes in older children and adults with repaired Tetralogy of Fallot (rToF). Pulmonary regurgitation (PR), right ventricular (RV) dilation, and dysfunction have been shown to result in abnormal LV myocardial mechanics and dysfunction. The aim of our study was to evaluate LV rotational mechanics, especially apical rotation in young children with rToF with and without RV dilation. This is a retrospective, single center study in 28 asymptomatic young children with rToF (16 with RV dilation; 12 without RV dilation); 29 age-matched normal controls...
April 11, 2018: Pediatric Cardiology
https://www.readbyqxmd.com/read/29643702/evaluation-of-right-ventricular-function-by-speckle-tracking-echocardiography-in-patients-with-ankylosing-spondylitis-a-case-control-study
#9
Mustafa Zungur, Ilker Gul, Senol Kobak
Background: We aimed to evaluate the right ventricular (RV) systolic function in patients with ankylosing spondylitis (AS) compared to healthy subjects by using standard echocardiography and speckle-tracking echocardiography (STE) methods. Methods: This was a case-control study in which 64 patients (mean age, 55.7 ± 9.2 years; male/female, 53/11), who had AS for at least five years (mean disease duration, 7.1 ± 2.6 years) and 70 age-matched healthy subjects (mean age, 54...
March 2018: Acta Cardiologica Sinica
https://www.readbyqxmd.com/read/29642689/the-obestiy-paradox-the-protective-effect-of-obesity-on-right-ventricular-function-using-echocardiographic-strain-imaging-in-patients-with-pulmonary-hypertension
#10
Hiten Patel, Suchit Bhutani, Sahitya Posimreddy, Priyank Shah, Upamanyu Rampal, Apurva Gandhi, Rahul Vasudev, Raja Pullatt, Hartaj Virk, Fayez Shamoon, Mahesh Bikkina, Irvin Goldfarb
BACKGROUND: Obesity is associated withright ventricular (RV) dysfunction, but its effect on RV remodeling in patients with pulmonary hypertension(PHTN) has not been studied. We evaluated the effect of obesity, and its interplay with diabetes, in patients with PHTN using RV echocardiographic strain imaging. METHODS: 185 patients underwent echocardiographic imaging and pulmonary artery pressure was calculated using tricuspid regurgitation jet velocity. From focused RV apical-four-chamber view, global and mid peak systolic RV free wall longitudinal strain (FWLS) wascalculated using speckle-tracking software...
April 11, 2018: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/29626078/early-cardiac-involvement-affects-left-ventricular-longitudinal-function-in-females-carrying-%C3%AE-galactosidase-a-mutation-role-of-hybrid-positron-emission-tomography-and-magnetic-resonance-imaging-and-speckle-tracking-echocardiography
#11
Letizia Spinelli, Massimo Imbriaco, Carmela Nappi, Emanuele Nicolai, Giuseppe Giugliano, Andrea Ponsiglione, Tommaso Claudio Diomiaiuti, Eleonora Riccio, Giovanni Duro, Antonio Pisani, Bruno Trimarco, Alberto Cuocolo
BACKGROUND: Hybrid18 F-fluorodeoxyglucose (FDG) positron emission tomography and magnetic resonance imaging may differentiate mature fibrosis or scar from fibrosis associated to active inflammation in patients with Anderson-Fabry disease, even in nonhypertrophic stage. This study was designed to compare the results of positron emission tomography and magnetic resonance cardiac imaging with those of speckle-tracking echocardiography in heterozygous Anderson-Fabry disease females. METHODS AND RESULTS: Twenty-four heterozygous females carrying α-galactosidase A mutation and without left ventricular hypertrophy underwent cardiac positron emission tomography and magnetic resonance using18 F-FDG for glucose uptake and 2-dimensional strain echocardiography...
April 2018: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29622989/echocardiographic-predictors-of-atrial-fibrillation-after-mitral-valve-replacement
#12
REVIEW
Al-Shimaa Mohamed Sabry, Heba Abd El-Kader Mansour, Tarek Helmy Abo El-Azm, Shimaa Ahmed Mostafa, Basant Samy Zahid
Objectives: Detection of the echocardiographic predictors of post-operative atrial fibrillation in patients with rheumatic mitral valve disease undergoing mitral valve replacement. Methods: The study included 50 patients with rheumatic mitral valve disease undergoing mitral valve replacement. Preoperative assessment included standard two-dimensional echocardiography to assess LA diameter, volume, and emptying fraction, LV volume and ejection fraction. TDI derived velocity, strain of the left atrium and speckle tracking to assess left ventricular function then postoperative follow up for 1 month for occurrence of atrial fibrillation...
December 2017: The Egyptian heart journal: (EHJ): official bulletin of the Egyptian Society of Cardiology
https://www.readbyqxmd.com/read/29622963/role-of-2d-speckle-tracking-echocardiography-in-predicting-acute-coronary-occlusion-in-patients-with-non-st-segment-elevation-myocardial-infarction
#13
Viola William Keddeas, Salwa Mohammed Swelim, Ghada Kamel Selim
Background: A substantial fraction of patients with non ST-elevation acute coronary syndrome have an occluded culprit vessel on coronary angiography. Acute coronary occlusion often results in myocardial infarction and loss of systolic function. Identification of these patients may have considerable impact on treatment and prognosis. Aim: The study aims at investigating role of 2D speckle tracking echocardiography as a non-invasive predictor of acute coronary artery occlusion in patients with non ST-segment elevation myocardial infarction...
June 2017: The Egyptian heart journal: (EHJ): official bulletin of the Egyptian Society of Cardiology
https://www.readbyqxmd.com/read/29622962/value-of-global-longitudinal-strain-by-two-dimensional-speckle-tracking-echocardiography-in-predicting-coronary-artery-disease-severity
#14
Hanan Radwan, Ekhlas Hussein
Background: Significant coronary artery stenosis might cause persistently impaired longitudinal left ventricle (LV) function at rest. LV global longitudinal strain (LVGLS) can be accurately assessed by 2D speckle-tracking strain echocardiography(2D-STE). Objective: We aimed to evaluate the diagnostic accuracy of LV global longitudinal strain obtained by 2D-STE in prediction of severity of CAD. Methods: Eighty patients with suspected stable angina pectoris were included...
June 2017: The Egyptian heart journal: (EHJ): official bulletin of the Egyptian Society of Cardiology
https://www.readbyqxmd.com/read/29618036/quantification-of-aortic-stiffness-and-wall-stress-in-healthy-volunteers-and-abdominal-aortic-aneurysm-patients-using-time-resolved-3d-ultrasound-a-comparison-study
#15
Emiel M J van Disseldorp, Niels J Petterson, Frans N van de Vosse, Marc R H M van Sambeek, Richard G P Lopata
Aims: Using non-invasive 3D ultrasound, peak wall stress (PWS) and aortic stiffness can be evaluated, which may provide additional criteria in abdominal aortic aneurysm (AAA) risk assessment. In this study, these measures were determined in both young and age-matched individuals, and AAA patients while its relation to age, maximum diameter, and growth was assessed statistically. Methods and results: Time-resolved 3D-US data were acquired for 30 volunteers and 65 AAA patients...
March 29, 2018: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/29611048/use-of-speckle-tracking-in-the-evaluation-of-late-subclinical-myocardial-damage-in-survivors-of-childhood-acute-leukaemia
#16
Elena Guadalupe Corella Aznar, Ariadna Ayerza Casas, Lorenzo Jiménez Montañés, Maria Ángeles Carlota Calvo Escribano, José Ignacio Labarta Aizpún, Pilar Samper Villagrasa
Heart disease is the leading cause of non-cancer death in childhood cancer survivors. to determine the prevalence of subclinical cardiac dysfunction using speckle tracking and compare its results with those obtained by classical methods of assessing left ventricular function and its relationship with different factors to identify the population at higher risk. Echocardiographic assessment of left ventricular function included ejection fraction, tissue Doppler, longitudinal/circumferential strains and biochemical parameters (troponin-T and Pro-BNP) in a cohort of 57 survivors of childhood acute leukaemia with at least 10 years since diagnosis...
April 2, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29610084/multiline-transmit-beamforming-combined-with-adaptive-apodization
#17
Grigoriy Zurakhov, Ling Tong, Alessandro Ramalli, Piero Tortoli, Jan D'hooge, Zvi Friedman, Dan Adam
Increased frame rate is of high importance to cardiac diagnostic imaging as it enables examination of fast events during the cardiac cycle and improved quantitative analysis, such as speckle tracking. Multiline transmission (MLT) is one of the methods proposed for this purpose. In contrast to the single-line transmission (SLT), where one focused beam is sent in each direction, MLT beams are simultaneously transmitted and focused in several ( ) directions improving the frame rate accordingly. The simultaneous transmission is known to cause crosstalk artifacts due to the interference between the main lobes and the sidelobes of the transmitted and received beams...
April 2018: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/29609808/bi-atrial-function-before-and-after-percutaneous-closure-of-atrial-septum-in-patients-with-and-without-paroxysmal-atrial-fibrillation-a-2-d-and-3-d-speckle-tracking-echocardiographic-study
#18
Antonio Vitarelli, Carlo Gaudio, Enrico Mangieri, Lidia Capotosto, Gaetano Tanzilli, Serafino Ricci, Nicola Viceconte, Attilio Placanica, Giuseppe Placanica, Rasul Ashurov
Our aim was to analyze atrial function with 2-D (2-D-STE) and 3-D (3-D-STE) speckle tracking echocardiography in patients with atrial septal devices and paroxysmal atrial fibrillation (PAF). One hundred sixteen patients and a subgroup of 22 patients who developed PAF after device insertion were studied. Left atrial and right atrial peak longitudinal strain and standard deviations of time to peak strain (TPS) were calculated using 2-D-STE. The left atrial/right atrial emptying fraction and expansion index were determined using 3-D-STE...
March 30, 2018: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/29606334/apical-transverse-motion-is-associated-with-interventricular-mechanical-delay-and-decreased-left-ventricular-function-in-children-with-dilated-cardiomyopathy
#19
Wei Hui, Cameron Slorach, Mark K Friedberg
BACKGROUND: Apical transverse motion (ATM) is associated with electromechanical dyssynchrony in adult dilated cardiomyopathy (DCM). Bundle branch block electromechanical dyssynchrony is uncommon in pediatric DCM, but ATM and its association with ventricular function have not been characterized. METHODS: Fifty-six children with DCM were retrospectively studied. Using echocardiography, ATM was assessed visually and by speckle-tracking longitudinal displacement of the interventricular septal and left ventricular (LV) lateral walls in opposite directions...
March 29, 2018: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/29606104/study-protocol-randomized-controlled-trial-reducing-symptom-burden-in-patients-with-heart-failure-with-preserved-ejection-fraction-using-ubiquinol-and-or-d-ribose
#20
Janet D Pierce, Diane E Mahoney, John B Hiebert, Amanda R Thimmesch, Francisco J Diaz, Carol Smith, Qiuhua Shen, Dinesh Pal Mudaranthakam, Richard L Clancy
BACKGROUND: Heart failure (HF), the leading cause of morbidity and mortality in the US, affects 6.6 million adults with an estimated additional 3 million people by 2030. More than 50% of HF patients have heart failure with preserved left ventricular ejection fraction (HFpEF). These patients have impaired cardiac muscle relaxation and diastolic filling, which investigators have associated with cellular energetic impairment. Patients with HFpEF experience symptoms of: (1) fatigue; (2) shortness of breath; and (3) swelling (edema) of the lower extremities...
April 2, 2018: BMC Cardiovascular Disorders
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