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"Speckle-tracking"

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https://www.readbyqxmd.com/read/29243788/evaluation-on-the-impact-of-spontaneous-reperfusion-on-cardiac-muscle-of-acute-myocardial-infarction-by-three-dimensional-speckle-tracking-imaging
#1
Z-W Tao, X-W Ma, N-N Liu, N-L Tian, X-F Gao, P-X Xiao
OBJECTIVE: To explore the effect of spontaneous reperfusion (SR) on three-dimensional myocardial strain in patients with acute anterior myocardial infarction by three-dimensional speckle tracking imaging (3D-STI) technology. PATIENTS AND METHODS: Patients diagnosed with acute anterior myocardial infarction during 2013 to 2016 were consecutively selected and divided into SR group and non-spontaneous reperfusion (Non-SR) group based on whether there was SR. Patients in both groups received direct percutaneous coronary intervention (PCI) in time window...
December 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29242009/tendon-displacements-during-voluntary-and-involuntary-finger-movements
#2
Nathalie van Beek, Kaj Gijsbertse, Ruud Selles, Chris L de Korte, DirkJan H E J Veeger, Dick F Stegeman, Huub Maas
In the human hand, independent movement control of individual fingers is limited. One potential cause for this is mechanical connections between the tendons and muscle bellies corresponding to the different fingers. The aim of this study was to determine the tendon displacement of the flexor digitorum superficialis (FDS) of both the instructed and the neighboring, non-instructed fingers during single finger flexion movements. In nine healthy subjects (age 22-29 years), instructed and non-instructed FDS finger tendon displacement of the index, middle and ring finger was measured using 2D ultrasound analyzed with speckle tracking software in two conditions: active flexion of all finger joints with all fingers free to move and active flexion while the non-instructed fingers were restricted...
December 5, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/29241906/rare-presentation-of-sarcoidosis-multimodal-imaging-diagnosis-of-cardiac-involvement
#3
Joao Abecasis, Mariana Castro, Regina Ribeiras, Victor Gil
We report a case of sarcoidosis with an unusual presentation, initially manifesting as bilateral pulmonary embolism and then as a cardiac form of the disease with an ominous clinical event consisting of sustained ventricular tachycardia. The diagnosis was established by clinical and magnetic resonance criteria despite normal conventional echocardiographic study. Detailed functional assessment provided by tracking techniques (speckle tracking echocardiography and cardiac magnetic resonance tissue tracking) enabled the detection of regional deformation abnormalities, indicating prominent circumferential strain and epicardial layer alterations, partly matching the structural changes depicted by distribution of delayed enhancement...
December 11, 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/29239028/recovery-of-myocardial-mechanics-in-kawasaki-disease-demonstrated-by-speckle-tracking-and-tissue-doppler-methods
#4
Emine Azak, Ibrahim Ilker Cetin, Hazım A Gursu, Ayse Esin Kibar, Murat Surucu, Ali Orgun, Utku Pamuk
AIM: To investigate myocardial deformation and function during treatment for Kawasaki disease (KD) in children. METHODS: We performed speckle tracking echocardiography (STE) and tissue Doppler imaging (TDI) in 15 children with KD and 15 healthy children during treatment for KD. STE was performed for longitudinal and circumferential strain (S) and strain rate (SR) at the left ventricle (LV) and for longitudinal S and SR at the right ventricle (RV). TDI was performed at the base of interventricular septum (IVS), LV, and RV...
December 13, 2017: Echocardiography
https://www.readbyqxmd.com/read/29236974/diabetes-as-an-independent-predictor-of-left-ventricular-longitudinal-strain-reduction-at-rest-and-during-dobutamine-stress-test-in-patients-with-significant-coronary-artery-disease
#5
Karina Wierzbowska-Drabik, Ewa Trzos, Malgorzata Kurpesa, Tomasz Rechcinski, Dawid Miskowiec, Urszula Cieslik-Guerra, Barbara Uznanska-Loch, Maria Sobczak, Jaroslaw Damian Kasprzak
Aims: Diabetes (DM) is a strong cardiovascular risk factor modifying also the left ventricular (LV) function that may be objectively assessed with echocardiographic strain analysis. Although the impact of isolated DM on myocardial deformation has been already studied, few data concern diabetics with coronary artery disease (CAD), especially in all stages of dobutamine stress echocardiography (DSE). We compared LV systolic function during DSE in CAD with and without DM using state-of-the art speckle-tracking quantification and assessed the impact of DM on LV systolic strain...
December 9, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/29235925/left-atrial-remodelling-may-predict-exercise-capacity-in-obstructive-sleep-apnoea-patients
#6
Süha Çetin, Mustafa Vural, Ramazan Akdemir, Hikmet Fırat
BACKGROUND: Left atrial volume (LAV) and LA deformation has been proposed as a good marker of exercise performance in patients with diastolic dysfunction (DD). As DD is more prevalent in obstructive sleep apnoea (OSA) we aimed to evaluate the influence of LAV and LA deformation parameters on exercise performance in varying severity of OSA. MATERIALS AND METHODS: OSA was diagnosed after polysomnography. Fifty-five OSA patients were enrolled in the study. OSA patients were divided into two groups with apnoea-hypopna-index (AHI) > 30 and <30...
December 13, 2017: Acta Cardiologica
https://www.readbyqxmd.com/read/29235182/spinal-cord-injury-induced-cardiomyocyte-atrophy-and-impaired-cardiac-function-are-severity-dependent
#7
Jordan W Squair, Jie Liu, Wolfram Tetzlaff, Andrei V Krassioukov, Christopher R West
The principle aim of the present study was to assess how the severity of spinal cord injury (SCI) affects LV mechanics, function, and underlying cardiomyocyte morphology. Here, we utilized different severities of T3 spinal cord contusions (MODERATE, 200Kdyn contusion; SEVERE, 400kdyn contusion; SHAM) and combined standard echocardiography with speckle tracking analyses to investigate in vivo cardiac function and deformation (contractility) after experimental SCI in the Wistar rat. In addition, we investigated changes in the intrinsic structure of cardiac myocytes ex vivo...
December 12, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/29234934/early-detection-of-left-ventricular-diastolic-dysfunction-using-conventional-and-speckle-tracking-echocardiography-in-a-large-animal-model-of-metabolic-dysfunction
#8
Mark M P van den Dorpel, Ilkka Heinonen, Sanne M Snelder, Hendrik J Vos, Oana Sorop, Ron T van Domburg, Daphne Merkus, Dirk J Duncker, Bas M van Dalen
Left ventricular (LV) diastolic dysfunction is one of the important mechanisms responsible for symptoms in patients with heart failure. The aim of the current study was to identify parameters that may be used to detect early signs of LV diastolic dysfunction in diabetic pigs on a high fat diet, using conventional and speckle tracking echocardiography. The study population consisted of 16 healthy Göttingen minipigs and 18 minipigs with experimentally induced metabolic dysfunction. Echocardiography measurements were performed at baseline and 3-month follow-up...
December 12, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29234843/the-right-atrium-in-idiopathic-hypereosinophilic-syndrome-insights-from-the-3d-speckle-tracking-echocardiographic-magyar-path-study
#9
A Nemes, I Marton, P Domsik, A Kalapos, É Pósfai, S Modok, Á Kormányos, N Ambrus, Z Borbényi, T Forster
BACKGROUND: Idiopathic hypereosinophilic syndrome is characterized by a persistent eosinophil blood count of >1.5 × 109 cells/l and organ damage, independent of the primary and secondary causes of eosinophilia. The purpose of the present study was to assess the three-dimensional speckle tracking echocardiography-derived right atrial volumetric and functional properties between hypereosinophilic syndrome patients and matched controls. METHODS: A total of 11 patients with idiopathic hypereosinophilic syndrome and 22 age- and gender-matched healthy controls were enrolled in the study...
December 12, 2017: Herz
https://www.readbyqxmd.com/read/29233835/right-atrial-deformation-in-predicting-outcomes-in-pediatric-pulmonary-hypertension
#10
Pei-Ni Jone, Michal Schäfer, Ling Li, Mary Craft, D Dunbar Ivy, Shelby Kutty
BACKGROUND: Elevated right atrial (RA) pressure is a risk factor for mortality, and RA size is prognostic of adverse outcomes in pulmonary hypertension (PH). There is limited data on phasic RA function (reservoir, conduit, and pump) in pediatric PH. We sought to evaluate (1) the RA function in pediatric PH patients compared with controls, (2) compare the RA deformation indices with Doppler indices of diastolic dysfunction, functional capacity, biomarkers, invasive hemodynamics, and right ventricular functional indices, and (3) evaluate the potential of RA deformation indices to predict clinical outcomes...
December 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29233648/left-atrial-dysfunction-in-light-chain-cardiac-amyloidosis-and-hypertrophic-cardiomyopathy-a-comparative-three-dimensional-speckle-tracking-echocardiographic-analysis-from-the-magyar-path-study
#11
Dóra Földeák, Árpád Kormányos, Péter Domsik, Anita Kalapos, Györgyike Á Piros, Nóra Ambrus, Zénó Ajtay, Róbert Sepp, Zita Borbényi, Tamás Forster, Attila Nemes
INTRODUCTION: While cardiac amyloidosis (CA) is a rare systemic disease characterized by extracellular deposition of protein-derived fibrils, hypertrophic cardiomyopathy (HCM) is histopathologically characterized by myocyte hypertrophy and disarray, interstitial fibrosis, and small intramural coronary arteriole dysplasia. The aim of the present study was to compare left atrial (LA) volumetric and functional characteristics between light-chain (AL) CA and HCM by three-dimensional (3D) speckle-tracking echocardiography (STE)...
December 9, 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/29233647/right-atrial-function-with-speckle-tracking-echocardiography-do-we-really-need-it
#12
Lígia Mendes, Nuno Cardim
No abstract text is available yet for this article.
December 9, 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/29230597/presence-of-post-systolic-shortening-is-an-independent-predictor-of-heart-failure-in-patients-following-st-segment-elevation-myocardial-infarction
#13
Philip Brainin, Sune Haahr-Pedersen, Morten Sengeløv, Flemming Javier Olsen, Thomas Fritz-Hansen, Jan Skov Jensen, Tor Biering-Sørensen
Following an ischemic event post systolic shortening (PSS) may occur. We investigated the association between PSS in patients with ST-segment elevation myocardial infarction (STEMI) following primary percutaneous coronary intervention (pPCI) and occurrence of cardiovascular events at follow-up. A total of 373 patients admitted with STEMI and treated with pPCI were prospectively included in the study cohort. All patients were examined by echocardiography a median of 2 days after admission (interquartile range, 1-3 days)...
December 11, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29229143/myocardial-functional-changes-in-transfemoral-versus-transapical-aortic-valve-replacement
#14
Niraj Asthana, Aditya Mantha, Eric H Yang, William Suh, Olcay Aksoy, Richard J Shemin, Gabriel Vorobiof, Peyman Benharash
BACKGROUND: Transcatheter aortic valve replacement (TAVR) has greatly expanded the treatment options available for patients with severe aortic stenosis at high surgical risk. MATERIALS AND METHODS: We compared changes in myocardial function in TAVR with a transfemoral (TF) versus a transapical (TA) approach at a major tertiary hospital from 2012-2016. Traditional echocardiographic measures of cardiac structure and function were tracked, alongside the use of two-dimensional speckle tracking echocardiography to measure myocardial strain and strain rates...
January 2018: Journal of Surgical Research
https://www.readbyqxmd.com/read/29226384/the-impact-of-volume-overload-on-right-heart-function-in-end-stage-renal-disease-patients-on-hemodialysis
#15
Serkan Ünlü, Asife Şahinarslan, Gökhan Gökalp, Özden Seçkin, Selim Turgay Arınsoy, Nuri Bülent Boyacı, Atiye Çengel
PURPOSE: The aim of this study was to evaluate the impact of volume overload on echocardiographic parameters used for the assessment of the right ventricle (RV) and right atrium (RA), to determine volume-independent parameters and to noninvasively investigate the physio-mechanics of RV and RA by examining end-stage kidney patients before and after hemodialysis (HD). METHODS: The echocardiographic images were obtained from 67 patients (49.2 ± 17.3 years, 23 f) before and after HD...
December 11, 2017: Echocardiography
https://www.readbyqxmd.com/read/29226357/atrial-deformation-correlated-with-functional-capacity-in-mitral-stenosis-patients
#16
Chen-Yu Chien, Chih-Wei Chen, Tin-Kwang Lin, Yu Lin, Jnnu-Wen Lin, Yi-Da Li, Chi-Hsien Chen, Wei-Chuan Tsai
BACKGROUND: Left atrial (LA) dysfunction, expressed as impaired LA deformation using two-dimensional (2D) strain imaging, has been observed in association with rheumatic mitral stenosis (MS). However, the clinical role of speckle tracking echocardiography (STE)-derived LA strain has rarely been studied in MS. AIM: This study aimed to identify the determinants of New York Heart Association (NYHA) functional class in patients with mitral stenosis and to investigate the relationship between left atrial deformation as measured by two-dimensional STE-derived LA strain and heart failure symptoms...
December 11, 2017: Echocardiography
https://www.readbyqxmd.com/read/29222822/coronary-microvascular-dysfunction-and-myocardial-contractile-reserve-in-women-with-angina-and-no-obstructive-coronary-artery-disease
#17
Marie M Michelsen, Adam Pena, Naja D Mygind, Jan Bech, Ida Gustafsson, Jens Kastrup, Henrik S Hansen, Nis Høst, Peter R Hansen, Eva Prescott
BACKGROUND: Coronary microvascular dysfunction (CMD) is a potential cause of myocardial ischemia and may affect myocardial function at rest and during stress. We investigated whether CMD was associated with left ventricular diastolic and systolic function at rest and during pharmacologically induced hyperemic stress. METHODS: In a prospective cohort study, we included 963 women with angina, left ventricular ejection fraction (LVEF) >45%, and an invasive coronary angiogram without significant stenosis (<50%)...
December 8, 2017: Echocardiography
https://www.readbyqxmd.com/read/29217112/assessment-of-left-atrial-function-by-three-dimensional-speckle-tracking-in-cardiomyopathies-a-step-forward
#18
José Ribeiro
No abstract text is available yet for this article.
December 4, 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/29216794/fragmented-qrs-complexes-are-associated-with-left-ventricular-dysfunction-in-patients-with-type-2-diabetes-mellitus-a-two-dimensional-speckle-tracking-echocardiography-study
#19
Adil Bayramoğlu, Hakan Taşolar, Yasemin Kaya, Osman Bektaş, Ahmet Kaya, Mehmet Yaman, Zeki Yüksel Günaydın
BACKGROUND: Heart failure may develop independently of coronary artery disease in diabetes mellitus (DM) patients. Fragmented QRS (fQRS) is a marker of myocardial fibrosis or scar tissue and is related to an increase in cardiovascular adverse events. In this study, we examined the utility of speckle tracking echocardiography (STE) in assessing LV function in DM patients with fQRS. METHODS AND RESULTS: The current study included 178 consecutive patients diagnosed with type-2 DM...
December 7, 2017: Acta Cardiologica
https://www.readbyqxmd.com/read/29214659/2d-speckle-tracking-echocardiography-of-the-right-ventricle-free-wall-in-scuba-divers-after-single-open-sea-dive
#20
Zora Susilovic-Grabovac, Ante Obad, Darko Duplančić, Ivana Banić, Denise Brusoni, Piergiuseppe Agostoni, Ivica Vuković, Zeljko Dujic, Darija Bakovic
The presence of circulating gas bubbles and their influence on pulmonary and right heart hemodynamics was reported after uncomplicated self-contained underwater breathing apparatus (SCUBA) dive(s). Improvements in cardiac imaging have recently focused great attention on the right ventricle (RV). The aim of our study was to evaluate possible effects of a single air SCUBA dive on RV function using 2D speckle tracking echocardiography in healthy divers after single open sea dive to 18 meters of seawater, followed by bottom stay of 47 minutes with a direct ascent to the surface...
December 7, 2017: Clinical and Experimental Pharmacology & Physiology
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