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"Speckle-tracking"

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https://www.readbyqxmd.com/read/28639946/assessment-of-left-ventricular-systolic-function-in-patients-with-iron-deficiency-anemia-by-three-dimensional-speckle-tracking-echocardiography
#1
Qiao Zhou, Jiaqi Shen, Yue Liu, Runlan Luo, Bijun Tan, Guangsen Li
OBJECTIVE: The present study aimed to evaluate left ventricular (LV) systolic function in patients with iron deficiency anemia (IDA) by 3 dimensional speckle-tracking echocardiography (3DSTE). METHODS: Participants were grouped by hemoglobin (Hb) levels in order to study the effect of anemia on cardiac function. Group A included 40 healthy volunteers. Eighty-three patients who were diagnosed with IDA were divided into 2 groups according to the Hb level. Group B (Hb 9 g/dL) included 44 patients, while group C (Hb 6-9 g/dL) included 39 patients...
June 22, 2017: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/28639243/right-atrial-myocardial-deformation-by-two-dimensional-speckle-tracking-echocardiography-predicts-recurrence-in-paroxysmal-atrial-fibrillation
#2
Malini Govindan, Anatoli Kiotsekoglou, Samir K Saha, A John Camm
BACKGROUND: Atrial fibrillation (AF) is a bi-atrial disease yet little attention has been given to right heart function in AF. We propose that the assessment of right atrial (RA) and right ventricular function (RV) using two-dimensional speckle tracking echocardiography (2D-STE) could be valuable in predicting AF recurrence in patients with paroxysmal AF (PAF). METHODS: Thirty patients with PAF were prospectively recruited from a dedicated AF clinic. Right atrial size, volume, and area and RV dimensions were analyzed along with RA and RV strain derived from 2D-STE at baseline and at 3 and 12 months...
June 21, 2017: Journal of Echocardiography
https://www.readbyqxmd.com/read/28638961/evaluation-of-systolic-and-diastolic-properties-of-hypertensive-heart-failure-using-speckle-tracking-echocardiography-with-high-volume-rates
#3
Shingo Minatoguchi, Masanori Kawasaki, Ryuhei Tanaka, Takashi Yoshizane, Koji Ono, Maki Saeki, Maki Nagaya, Hidemaro Sato, Kazuhiko Nishigaki, Toshiyuki Noda, Michael R Zile, Shinya Minatoguchi
Left ventricular (LV) properties in hypertension (HTN) could be deteriorated by pressure overload, especially in endocardium, resulting in hypertensive heart failure (HHF). We sought to noninvasively examine LV systolic and diastolic functions at three myocardial layers in HTN and elucidate features of HHF by speckle-tracking echocardiography (STE) with high volume rates. We examined normotensive controls (n = 54), HTN patients without LV hypertrophy (LVH) (n = 50), and HTN patients with LVH (n = 40) and HHF patients (n = 45)...
June 21, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/28637305/left-atrial-structure-and-function-in-cardiac-amyloidosis
#4
Kotaro Nochioka, Candida Cristina Quarta, Brian Claggett, Gabriela Querejeta Roca, Claudio Rapezzi, Rodney H Falk, Scott D Solomon
Aims: Although cardiac amyloidosis (CA) is characterized by significant left atrial (LA) dilatation, the characteristics of LA function remain to be fully investigated. Methods and results: We assessed LA function by speckle-tracking echocardiography in 124 patients with CA and sinus rhythm: 68 with light chain (AL), 29 with mutant (ATTRm), 27 with wild-type (ATTRwt) transthyretin amyloidosis. Conventional and strain-derived parameters, including LA peak longitudinal strain (LS) and strain rate (peak LSR: reservoir function; early LSR: conduit function; late LSR: active function), were assessed compared between CA patients and 20 healthy controls of similar age and gender...
June 16, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28636515/a-brief-period-of-intensive-cardiac-rehabilitation-improves-global-longitudinal-strain-and-diastolic-function-after-a-first-uncomplicated-myocardial-infarction
#5
Gabriella Malfatto, Miriam Revera, Giovanna Branzi, Francesca Ciambellotti, Alessia Giglio, Simonetta Blengino, Matteo Oldani, Camilla Facchini, Gianfranco Parati, Mario Facchini
Objectives In patients with abnormal left ventricular ejection fraction (LVEF) after acute myocardial infarction (AMI), cardiac rehabilitation with physical training prevents cardiac remodelling. To define the role of rehabilitation in the recovery of ventricular function in less severe cases, we studied its effects on more refined indexes of left ventricular function in uncomplicated, low-risk patients. Methods and results Fifty-five patients underwent percutaneous coronary revascularization after uncomplicated first AMI...
March 21, 2017: Acta Cardiologica
https://www.readbyqxmd.com/read/28616561/left-atrial-appendage-function-assessment-and-thrombus-identification
#6
Jacek Kurzawski, Agnieszka Janion-Sadowska, Marcin Sadowski
BACKGROUND: The diagnosis of thrombus in the left atrium in patients with persistent atrial fibrillation (AF) and may be inconsistent because of variability in thrombus morphology. In some cases it is challenging and requires unusual approach. New Doppler-derived methods might be helpful to identify such thrombi. We evaluated quantitative differences in mechanical function of the left atrial appendage (LAA) basal segments using tissue Doppler imaging (TDI)and speckle tracking echocardiography (STE) in patients with non-valvular AF with and without LAA thrombus and compared them with SR patients...
March 2017: IJC Heart & Vasculature
https://www.readbyqxmd.com/read/28616546/late-gadolinium-enhancement-does-occur-in-tako-tsubo-cardiomyopathy-a-quantitative-cardiac-magnetic-resonance-and-speckle-tracking-strain-study
#7
Niranjan Gaikwad, Thomas Butler, Ryan Maxwell, Elizabeth Shaw, Wendy E Strugnell, Jonathan Chan, Gemma A Figtree, Richard E Slaughter, Christian Hamilton-Craig
BACKGROUND: Late gadolinium enhancement (LGE) on cardiac magnetic resonance imaging (CMR) has been recommended to distinguish Tako-tsubo cardiomyopathy (TTC) from either acute myocardial infarction or myocarditis. METHOD: 44 consecutive patients with confirmed Mayo Clinic criteria for TTC underwent CMR imaging at 1.5 Tesla during the acute phase. 10 patients who had CMRI to exclude scar related ventricular tachycardia, and had negative studies, were used as negative controls...
September 2016: IJC Heart & Vasculature
https://www.readbyqxmd.com/read/28616541/accuracy-of-quantitative-echocardiographic-measures-of-right-ventricular-function-as-compared-to-cardiovascular-magnetic-resonance
#8
Christian R Hamilton-Craig, Kathy Stedman, Ryan Maxwell, Bonita Anderson, Tony Stanton, Jonathan Chan, Akira Yamada, Gregory M Scalia, Darryl J Burstow
BACKGROUND: Many echocardiographic parameters have been proposed to evaluate right ventricular (RV) systolic function. We comprehensively assessed a wide range of quantitative echocardiographic parameters in a single cohort compared with same-day cardiovascular magnetic resonance (CMR). METHODS AND RESULTS: 92 subjects were examined prospectively: Group 1 consisted of 46 healthy controls (21 males, 33.4 ± 11.4 years), Group 2 consisted of 46 patients (20 males, 38...
September 2016: IJC Heart & Vasculature
https://www.readbyqxmd.com/read/28615148/echocardiographic-assessments-of%C3%A2-longitudinal-left-ventricular-function-in%C3%A2-healthy-english-springer-spaniels
#9
D Dickson, R Shave, M Rishniw, M Patteson
OBJECTIVES: To establish reference intervals for echocardiographic measures of longitudinal left ventricular function in adult English Springer spaniel (ESS) dogs. ANIMALS: This study involved 42 healthy adult ESS. METHODS: Animals were prospectively recruited from a general practice population in the United Kingdom. Dogs were examined twice, at least 12 months apart, to exclude dogs with progressive cardiac disease. Mitral annular plane systolic excursion, tissue Doppler imaging mitral annular velocities and two-dimensional speckle-tracking echocardiographic left ventricular longitudinal strain and strain rate were measured...
June 11, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/28610912/characteristics-of-cardiomyopathy-in-alstr%C3%A3-m-syndrome-prospective-single-center-data-on-38-patients
#10
Alessandra Brofferio, Vandana Sachdev, Hwaida Hannoush, Jan D Marshall, Jürgen K Naggert, Stanislav Sidenko, Anna Noreuil, Arlene Sirajuddin, Joy Bryant, Joan C Han, Andrew E Arai, William A Gahl, Meral Gunay-Aygun
BACKGROUND: Alström syndrome (AS) is a rare monogenetic disorder with multi-organ involvement. Complex metabolic disturbances are common and cardiomyopathy is a well-recognized feature in infants as well as in older children and adults. Although the mechanism of cardiomyopathy is not known, previous reports suggest that individuals with infantile-onset cardiac disease recover completely. METHODS: In this single center prospective series of 38 children and adults (age range 1...
May 30, 2017: Molecular Genetics and Metabolism
https://www.readbyqxmd.com/read/28608400/myocardial-strain-assessment-using-velocity-vector-imaging-in-normally-grown-fetuses-at-term
#11
Amal A Alsolai, Larissa N Bligh, Ristan M Greer, Alexander Gooi, Sailesh Kumar
OBJECTIVES: The aim was to prospectively assess fetal myocardial deformation at term in normally grown fetuses, using Velocity Vector Imaging (VVI) 2D speckle-tracking technique and explore myocardial deformation changes over the last four weeks of pregnancy. METHODS: This was a prospective, observational, cohort study, at the Mater Mother's Hospital, Brisbane, Australia. A cohort of 276 women with uncomplicated singleton pregnancies underwent fortnightly ultrasound from 36 weeks until delivery...
June 13, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28607564/subclinical-left-ventricular-systolic-dysfunction-in-patients-with-metabolic-syndrome-a-case-control-study-using-two-dimensional-speckle-tracking-echocardiography
#12
Alireza Moaref, Majid Faraji, Maryam Tahamtan
BACKGROUND: The dramatic increase in the prevalence of metabolic syndrome is associated with more increased cardiovascular morbidity and mortality in this group. Some recent studies suggested that metabolic syndrome is associated with increased risk of subclinical left ventricular (LV) systolic dysfunction. In the present cross-sectional case-control study, the utility of two-dimensional speckle tracking echocardiography (STE) was examined to detect early LV systolic dysfunction in this population...
November 2016: ARYA Atherosclerosis
https://www.readbyqxmd.com/read/28602206/strain-rate-in-children-and-young-piglets-mirrors-changes-in-contractility-and-demonstrates-a-force-frequency-relationship
#13
Silvia V Alvarez, Etienne Fortin-Pellerin, Mohammed Alhabdan, Jesus S Lomelin, Michal Kantoch, Joseph Atallah, Lisa K Hornberger, James Y Coe, Po-Yin Cheung, Edythe B Tham, Kandice Mah, Lily Lin, Lindsay Mills, Nee S Khoo
BACKGROUND: In adult humans and pig models, strain rate (SR) correlates strongly with invasive measures of contractility but does not demonstrate a force-frequency relationship, which is a fundamental behavior of myocardial contraction. Given the considerable maturational changes of the myocardium from fetal stages to adulthood, extrapolation of adult findings to the young heart may not be appropriate. We sought to evaluate the SR response of the immature heart to increased heart rate (HR) and inotropic stimulation...
June 8, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28599827/late-detection-of-left-ventricular-dysfunction-using-two-dimensional-and-three-dimensional-speckle-tracking-echocardiography-in-patients-with-history-of-nonsevere-acute-myocarditis
#14
Thibault Caspar, Marie Fichot, Mickaël Ohana, Soraya El Ghannudi, Olivier Morel, Patrick Ohlmann
BACKGROUND: Acute myocarditis (AM) often involves the left ventricular (LV) subepicardium that might be displayed by cardiac magnetic resonance even late after the acute phase. In the absence of global or regional LV dysfunction, conventional transthoracic echocardiography (TTE) does not accurately identify tissue sequelae of AM. We sought to evaluate the diagnostic value of two-dimensional (2D) and three-dimensional (3D) speckle-tracking echocardiography to identify patients with a history of AM with preserved LV ejection fraction (LVEF)...
June 6, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28599826/prognostic-value-of-left-ventricular-deformation-parameters-in-patients-with-severe-aortic-stenosis-a-pilot-study-of-the-usefulness-of-strain-echocardiography
#15
Lars Gunnar Klaeboe, Trine F Haland, Ida S Leren, Rachel M A Ter Bekke, Pål H Brekke, Helge Røsjø, Torbjørn Omland, Lars Gullestad, Svend Aakhus, Kristina H Haugaa, Thor Edvardsen
BACKGROUND: In patients with aortic stenosis, subtle alterations in myocardial mechanics can be detected by speckle-tracking echocardiography before reduction of left ventricular ejection fraction (LVEF). METHODS: In this prospective study, 162 patients with aortic stenosis with an average aortic valve area of 0.7 ± 0.2 cm(2) and a mean LVEF of 60 ± 11% were included. Global longitudinal strain (GLS) and mechanical dispersion (SD of time from Q/R on the electrocardiogram to peak strain in 16 left ventricular segments) were assessed using echocardiography, and all-cause mortality (n = 37) was recorded during 37 ± 13 months of follow-up...
June 6, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28599825/left-ventricular-rotational-and-twist-mechanics-in%C3%A2-the-human-fetal-heart
#16
Ling Li, Mary Craft, Hao H Hsu, Ming Zhang, Berthold Klas, David A Danford, Shelby Kutty
BACKGROUND: The authors investigated left ventricular (LV) rotational indices, twist, and torsion in a large cohort of fetuses using two-dimensional speckle-tracking echocardiography. METHODS: Pregnant women (N = 102) were prospectively recruited for fetal two-dimensional speckle-tracking echocardiography. Because of variable fetal position, ventricular orientation was established using the location of the liver and LV position in relation to the right ventricle...
June 6, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28598119/-aortic-and-mitral-annuli-coupling-and-its-association-with-cardiac-function-in-patients-with-dilated-cardiomyopathy
#17
Yan-Ting Liu, Wen-Juan Bai, Qiu Xie, Li Rao
OBJECTIVES: To compare the mitral and aortic annuli excursion (AE) and aortomitral angle (AMA) variations between patients with and without dilated cardiomyopathy (DCM) using speckle tracking echocardiography (STE),and determine the role of annuli dynamics and coupling behaviors in the left ventricular function. METHODS: Thirty-five patients with DCM and thirty-five age and sex matched healthy adults underwent transthoracic echocardiographic examinations.In the parasternal long-axis view,the AE and AMA variations were measured using Philips QLAB 9...
November 2016: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/28597735/early-changes-of-left-atrial-function-in-chronic-asymptomatic-alcoholics-by-two-dimensional-speckle-tracking-echocardiography
#18
Rui Xu, Runlan Luo, Bijun Tan, Tian Gan, Guangsen Li
Background Chronic excessive alcohol intake has been reported as a possible cause of dilated cardiomyopathy. Two-dimensional speckle-tracking echocardiography (2D-STE) is a novel method for the angle-independent and objective quantification of myocardial deformation. This study sought to assess left atrial function changes among alcoholics related to the duration of heavy drinking by 2D-STE. Methods We classified 92 asymptomatic alcoholics into mild, moderate and severe groups. Thirty age-matched controls were also recruited...
February 2017: Acta Cardiologica
https://www.readbyqxmd.com/read/28592962/how-to-detect-atrial-fibrosis
#19
REVIEW
Juan Lacalzada-Almeida, Javier García-Niebla
In the last twenty years, new imaging techniques to assess atrial function and to predict the risk of recurrence of atrial fibrillation after treatment have been developed. The present review deals with the role of these techniques in the detection of structural and functional changes of the atrium and diagnosis of atrial remodeling, particularly atrial fibrosis. Echocardiography allows the detection of anatomical, functional changes and deformation of the atrial wall during the phases of the cardiac cycle...
March 2017: Journal of Geriatric Cardiology: JGC
https://www.readbyqxmd.com/read/28592829/speckle-tracking-stress-echocardiography-uncovers-early-subclinical-cardiac-involvement-in-pediatric-patients-with-inflammatory-bowel-diseases
#20
Kai O Hensel, Francisca E Abellan Schneyder, Lucia Wilke, Andreas Heusch, Stefan Wirth, Andreas C Jenke
Inflammatory bowel disease (IBD) is an established risk factor for cardiovascular disease (CVD). However, whether cardiac consequences present early in IBD is unknown. This is the first study in children aiming to unmask altered myocardial mechanics in IBD. We enrolled 50 consecutive normotensive children with Crohn's disease (CD) (n = 28) or ulcerative colitis (UC) (n = 22). The study groups consisted of 18 patients with active inflammatory disease (mean age 14.6 ± 2.5 years) and 32 children with IBD in remission (14...
June 7, 2017: Scientific Reports
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