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https://www.readbyqxmd.com/read/29350882/cardiac-function-by-three-dimensional-speckle-tracking-imaging-and-cytokines-in-kawasaki-disease
#1
Masataka Kato, Mamoru Ayusawa, Hirofumi Watanabe, Akiko Komori, Yuriko Abe, Takahiro Nakamura, Hiroshi Kamiyama, Shori Takahashi
BACKGROUND: IT is well known that serum N-terminal pro brain natriuretic peptide (NT-proBNP) tends to elevate in acute phase of Kawasaki disease (KD), but the cause of NT-proBNP elevation has not been clarified. Our previous study revealed that cardiac function evaluated by two-dimensional echocardiography (2D-E) such as ejection fraction (EF) was normal. However, cardiac function evaluated by 2D-E does not reflect subtle change of cardiac dysfunction and the relation has still been controversial...
January 19, 2018: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/29350660/rest-2d-speckle-tracking-echocardiography-may-be-a-sensitive-but-nonspecific-test-for-detection-of-significant-coronary-artery-disease
#2
Mohammad Parsa Mahjoob, Saeed Alipour Parsa, Asghar Mazarei, Morteza Safi, Isa Khaheshi, Shooka Esmaeeli
AIMS: To detect the significance of coronary artery disease in the patients, who are suspected, was assumed to be one of the advantages of 2D STE, as a novel non-invasive imaging modality with acceptable accuracy. METHODS: In this study, 216 patients who were suspected to have coronary artery disease and candidate for coronary angiography, underwent rest two-dimensional speckle tracking echocardiography (2D STE) and negative global systolic longitudinal strain was evaluated...
January 16, 2018: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/29339687/subclinical-left-ventricular-systolic-dysfunction-in-patients-with-severe-aortic-stenosis-a-speckle-tracking-echocardiography-study
#3
Betül Cengiz, Şükrü Taylan Şahin, Selen Yurdakul, Serkan Kahraman, Ayşen Bozkurt, Saide Aytekin
OBJECTIVE: In patients with aortic stenosis (AS), the left ventricular (LV) geometry changes due to the increased LV afterload. However, subclinical myocardial dysfunction can develop despite a normal LV ejection fraction (EF). This study was an investigation of subclinical LV systolic dysfunction in patients with severe AS with a normal LV EF using a strain imaging method, speckle-tracking echocardiography (STE), and an evaluation of its correlation with novel indices to assess the severity of AS...
January 2018: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/29324692/a-portable-dynamic-laser-speckle-system-for-sensing-long-term-changes-caused-by-treatments-in-painting-conservation
#4
Alberto J Pérez, Rolando J González-Peña, Roberto Braga, Ángel Perles, Eva Pérez-Marín, Fernando J García-Diego
Dynamic laser speckle (DLS) is used as a reliable sensor of activity for all types of materials. Traditional applications are based on high-rate captures (usually greater than 10 frames-per-second, fps). Even for drying processes in conservation treatments, where there is a high level of activity in the first moments after the application and slower activity after some minutes or hours, the process is based on the acquisition of images at a time rate that is the same in moments of high and low activity. In this work, we present an alternative approach to track the drying process of protective layers and other painting conservation processes that take a long time to reduce their levels of activity...
January 11, 2018: Sensors
https://www.readbyqxmd.com/read/29322374/echocardiographic-assessment-of-regional-right-ventricular-systolic-function-using-two-dimensional-strain-echocardiography-and-evaluation-of-the-predictive-ability-of-longitudinal-2d-strain-imaging-for-pulmonary-arterial-hypertension-in-systemic-sclerosis-patients
#5
Vedat Hekimsoy, Ergun Barıs Kaya, Ali Akdogan, Levent Sahiner, Banu Evranos, Ugur Canpolat, Kudret Aytemir, Necla Özer, Lale Tokgozoglu
Systemic sclerosis (SSc) is a generalized connective tissue disorder, and SSc patients are at risk of developing pulmonary arterial hypertension (PAH). The aims of this study are to evaluate the right ventricular regional systolic function using two-dimensional speckle-tracking echocardiography (2D STE) and to determine the predictive ability of peak longitudinal systolic strain (PLSS) at the RV lateral wall for PAH in SSc patients. 80 SSc patients (mean age 51 ± 12 years) were included in the study. Echocardiography and 2D STE were performed at baseline and after 12 months...
January 10, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29312752/adult-echocardiographic-nomograms-overview-critical-review-and-creation-of-a-software-for-automatic-fast-and-easy-calculation-of-normal-values
#6
REVIEW
Massimiliano Cantinotti, Raffaele Giordano, Marco Paterni, Daniel Saura, Marco Scalese, Eliana Franchi, Nadia Assanta, Martin Koestenberg, Raluca Dulgheru, Tadafumi Sugimoto, Anne Bernard, Luis Caballero, Patrizio Lancellotti
There is a crescent interest on normal adult echocardiographic values and the introduction of new deformation imaging and 3D parameters pose the issue of normative data. A multitude of nomograms has been recently published, however data are often fragmentary, difficult to find, and their strengths/limitations have been never evaluated. AIMS: (I) to provide a review of current echocardiographic nomograms; (II) to generate a tool for easy and fast access to these data. A literature search was conducted accessing the National Library of Medicine using the keywords: 2D/3D echocardiography, strain, left/right ventricle, atrial, mitral/tricuspid valve, aorta, reference values/nomograms/normal values...
December 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29306590/new-definition-criteria-of-myocardial-dysfunction-in-patients-with-liver-cirrhosis-a-speckle-tracking-and-tissue-doppler-imaging-study
#7
Roxana Cristina Rimbaş, Sorina Mihăilă Baldea, Ruxandra Drăgoi Galrinho Antunes Guerra, Simona Ionela Visoiu, Mihai Rimbaş, Corina Silvia Pop, Dragoş Vinereanu
There are no clear recommendations regarding cirrhotic cardiomyopathy (CC) evaluation in patients with pre-transplant liver cirrhosis. The roles of new methods, tissue Doppler imaging (TDI) and speckle tracking echocardiography (STE) in the diagnosis and prognosis of cirrhotic cardiomyopathy remain controversial. We investigated the utility of TDI/STE parameters in cirrhotic cardiomyopathy diagnosis and also in predicting mortality in patients with liver cirrhosis. Left/right ventricular function was studied using conventional TDI (velocities) and STE (strain/strain rate)...
January 3, 2018: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/29305036/right-ventricular-structure-and-function-in-the-veteran-ultramarathon-runner-is-there-evidence-for-chronic-maladaptation
#8
Oliver Rothwell, Keith George, John Somauroo, Rachel Lord, Mike Stembridge, Rob Shave, Martin D Hoffman, Mathew Wilson, Euan Ashley, Francois Haddad, Thijs M H Eijsvogels, David Oxborough
BACKGROUND: It has been proposed that chronic exposure to prolonged strenuous exercise may result in maladaptation of the right ventricle (RV). The of this study aim was to establish RV structure and function, including septal insertion points, using conventional echocardiography and myocardial strain (ε) imaging in a veteran population of ultramarathon runners (UR) and age- and sex-matched controls. METHODS: A retrospective study design provided 40 UR (>35 years old; mean ± SD training experience, 18 ± 12 years) and 24 sedentary controls who had previously undergone conventional two-dimensional, tissue Doppler and speckle-tracking echocardiography to measure RV size and function...
January 3, 2018: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/29297194/red-cell-distribution-width-and-its-relationship-with-global-longitudinal-strain-in-patients-with-heart-failure-with-reduced-ejection-fraction-a-study-using-two-dimensional-speckle-tracking-echocardiography
#9
Elif Eroglu, Alev Kilicgedik, Gokhan Kahveci, Ruken Bengi Bakal, Cevat Kirma
BACKGROUND: Red cell distribution width (RDW) is a measurement of size variability of the red blood cells and has been shown to be a powerful predictor of prognosis in heart failure (HF). Recently, global longitudinal strain (GLS) emerged as a more accurate marker of left ventricular (LV) systolic function. AIM: We aimed to assess the relationship between RDW and standard echocardiographic parameters and left ventricular global strain measured by two-dimensional (2D) speckle tracking echocardiography in patients with HF with reduced EF (HFrEF)...
January 3, 2018: Kardiologia Polska
https://www.readbyqxmd.com/read/29296499/momentum-transfer-monte-carlo-for-the-simulation-of-laser-speckle-imaging-and-its-application-in-the-skin
#10
Caitlin Regan, Carole Hayakawa, Bernard Choi
Due to its simplicity and low cost, laser speckle imaging (LSI) has achieved widespread use in biomedical applications. However, interpretation of the blood-flow maps remains ambiguous, as LSI enables only limited visualization of vasculature below scattering layers such as the epidermis and skull. Here, we describe a computational model that enables flexible in-silico study of the impact of these factors on LSI measurements. The model uses Monte Carlo methods to simulate light and momentum transport in a heterogeneous tissue geometry...
December 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/29296472/approach-to-breast-cancer-early-detection-via-tracking-of-secondary-speckle-patterns-reflected-from-the-skin-with-artificial-intradermal-impurity
#11
Aviya Bennett, Talia Sirkis, Yevgeny Beiderman, Sergey Agdarov, Yafim Beiderman, Zeev Zalevsky
Breast cancer has become a major cause of death among women. The lifetime risk of a woman developing this disease has been established as one in eight. The most useful way to reduce breast cancer death is to treat the disease as early as possible. The existing methods of early diagnostics of breast cancer are mainly based on screening mammography or Magnetic Resonance Imaging (MRI) periodically conducted at medical facilities. In this paper the authors proposing a new approach for simple breast cancer detection...
December 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/29286395/benefits-of-cardiac-resynchronization-therapy-in-an-asynchronous-heart-failure-model-induced-by-left-bundle-branch-ablation-and-rapid-pacing
#12
Jingfeng Wang, Zhenning Nie, Haiyan Chen, Xianhong Shu, Zhaohua Yang, Ruiming Yao, Yangang Su, Junbo Ge
It is now well recognized that heart failure (HF) patients with left bundle branch block (LBBB) derive substantial clinical benefits from cardiac resynchronization therapy (CRT), and LBBB has become one of the important predictors for CRT response. The conventional tachypacing-induced HF model has several major limitations, including absence of stable LBBB and rapid reversal of left ventricular (LV) dysfunction after cessation of pacing. Hence, it is essential to establish an optimal model of chronic HF with isolated LBBB for studying CRT benefits...
December 11, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29283466/improved-segmental-myocardial-strain-reproducibility-using-deformable-registration-algorithms-compared-with-feature-tracking-cardiac-mri-and-speckle-tracking-echocardiography
#13
Jie Wang, Weihao Li, Jiayu Sun, Hong Liu, Yu Kang, Dan Yang, Liuyu Yu, Andreas Greiser, Xiaoyue Zhou, Yuchi Han, Yucheng Chen
BACKGROUND: Segmental myocardial strain using feature tracking (FT) cardiac MRI is not acceptable due to poor reproducibility. PURPOSE: To assess the reproducibility of left ventricle (LV) segmental myocardial strain measured by deformation registration algorithm (DRA). STUDY TYPE: Prospective clinical trial. SUBJECTS: Sixteen healthy volunteers and 28 hypertrophic cardiomyopathy (HCM) patients. FIELD STRENGTH/SEQUENCE: Retrospective ECG gating cardiac MRI imaging was performed at 3...
December 28, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29262403/sacubitril-valsartan-in-an-elderly-patient-with-heart-failure-a-case-report
#14
Matteo Cameli, Maria Concetta Pastore, Antonio Pagliaro, Cristina Di Tommaso, Rosanna Reccia, Valeria Curci, Giulia Elena Mandoli, Sergio Mondillo
Sacubitril/valsartan has recently been approved for the treatment of heart failure with reduced ejection fraction. Given its recent introduction in the armamentarium for the treatment of heart failure (HF), "field-practice" evidence is required to deepen the clinical management of sacubitril/valsartan therapy. We report a relevant case of an elderly patient who achieved major clinical benefits after only 3 months of sacubitril/valsartan therapy. Importantly, in our assessment, we employed speckle tracking echocardiography (STE), a recent echocardiography technique that is non-Doppler and not angle dependent, which analyzes deformations of heart chambers from standard images and allows a fast, reliable, and reproducible assessment of heart function...
2017: Cardiology
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
#15
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/29241906/rare-presentation-of-sarcoidosis-multimodal-imaging-diagnosis-of-cardiac-involvement
#16
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
#17
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/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
#18
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/29230597/presence-of-post-systolic-shortening-is-an-independent-predictor-of-heart-failure-in-patients-following-st-segment-elevation-myocardial-infarction
#19
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/29226384/the-impact-of-volume-overload-on-right-heart-function-in-end-stage-renal-disease-patients-on-hemodialysis
#20
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
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