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Echocardiography, 3D

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https://www.readbyqxmd.com/read/30315339/subtle-myocardial-dysfunction-and-fibrosis-in-children-with-rheumatic-heart-disease-insight-from-3d-echocardiography-3d-speckle-tracking-and-cardiac-magnetic-resonance-imaging
#1
R Sobhy, M Samir, G Abdelmohsen, H Ibrahim, M Y Abd El Rahman, N Abdelrahman, N Behairy, O Imam, H Hamza
Rheumatic heart disease (RHD) is a major cause of morbidity and mortality in developing countries, so early diagnosis and treatment can reduce morbidity and mortality resulting from subsequent valvular damage. The aim of this study was to detect subtle myocardial dysfunction among children with RHD with preserved left ventricular systolic function. This is a cross-sectional case-control study that was conducted on 30 children with RHD (who had valvular affection of any degree and were not in activity) compared to 23 healthy children...
October 12, 2018: Pediatric Cardiology
https://www.readbyqxmd.com/read/30314517/comparison-of-mitral-annulus-geometry-between-patients-with-ischemic-and-non-ischemic-functional-mitral-regurgitation-implications-for-transcatheter-mitral-valve-implantation
#2
Patrizia Aruta, Denisa Muraru, Andrada Camelia Guta, Sorina Mihaila, Niccolò Ruozi, Chiara Palermo, Basma Elnagar, Sabino Iliceto, Luigi P Badano
BACKGROUND: Transcatheter mitral valve replacement (TMVR) is a new therapeutic option for high surgical risk patients with mitral regurgitation (MR). Mitral valve (MV) geometry quantification is of paramount importance for success of the procedure and transthoracic 3D echocardiography represents a useful screening tool. Accordingly, we sought to asses MV geometry in patients with functional MR (FMR) that would potentially benefit of TMVR, focusing on the comparison of mitral annulus (MA) geometry between patients with ischemic (IMR) and non ischemic mitral regurgitation (nIMR)...
October 12, 2018: Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/30308043/preclinical-cardiovascular-changes-in-children-with-obesity-a-real-time-3-dimensional-speckle-tracking-imaging-study
#3
Chunquan Zhang, Yiwen Deng, Yanna Liu, Yan Xu, Yanling Liu, Li Zhang, Xiongwen Chen, Mingxing Xie, Shuping Ge
The aims of this study were (1) to quantify changes in 3-dimensional (3D) strain in obese children using real-time 3D echocardiography (RT3DE) and 3D speckle tracking echocardiography (3DSTE), and (2) to investigate the utility of left ventricular (LV) strain variables in measuring early cardiovascular changes in children with obesity. A total of 181 obese children (study group) aged 4-18 years old were prospectively enrolled and compared with 229 healthy subjects (control group). We acquired demographic, clinical, biochemical, and 2D echocardiography/Doppler data...
2018: PloS One
https://www.readbyqxmd.com/read/30303687/impact-of-3d-echocardiography-on-grading-of-mitral-stenosis-and-prediction-of-clinical-events
#4
C Bleakley, M Eskandari, O Aldalati, K Moschonas, M Huang, A Whittaker, M J Monaghan
Background: The mitral valve orifice area (MVOA) is difficult to assess accurately by 2D echocardiography because of geometric assumptions; therefore, 3D planimetry may offer advantages. We studied the differences in MVOA measurements between the most frequently used methods, to determine if 3D planimetry would result in the re-grading of severity in any cases, and whether it was a more accurate predictor of clinical outcomes. Methods: This was a head-to-head comparison of the three most commonly used techniques to grade mitral stenosis (MS) by orifice area and to assess their impact on clinical outcomes...
December 1, 2018: Echo Research and Practice
https://www.readbyqxmd.com/read/30293779/validation-of-a-holographic-display-for-quantification-of-mitral-annular-dynamics-by-three-dimensional-echocardiography
#5
Karl-Andreas Dumont, John-Peder Escobar Kvitting, Jørn S Karlsen, Espen W Remme, John Hausken, Runar Lundblad, Arnt E Fiane, Stig Urheim
BACKGROUND: Three-dimensional (3D) echocardiography with multiplanar reconstruction (MPR) is used clinically to quantify the mitral annulus. MPR images are, however, presented on a two-dimensional screen, calling into question their accuracy. An alternative to MPR is an autostereoscopic holographic display that enables in-depth visualization of 3D echocardiographic data without the need for special glasses. The aim of this study was to validate an autostereoscopic display using sonomicrometry as a gold standard...
October 4, 2018: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/30291509/changes-in-dynamic-mitral-valve-geometry-during-percutaneous-edge-edge-mitral-valve-repair-with-the-mitraclip-system
#6
Thilo Noack, Philipp Kiefer, Linda Mallon, Philipp Lurz, Carmine Bevilacqua, Joergen Banusch, Fabian Emrich, David M Holzhey, Mani Vannan, Holger Thiele, Friedrich-Wilhelm Mohr, Michael Andrew Borger, Joerg Ender, Joerg Seeburger
BACKGROUND: The aim of this study was to quantify the acute dynamic changes of mitral valve (MV) geometry throughout the cardiac cycle-during percutaneous MV repair with the MitraClip system by 3-dimensional transesophageal echocardiography (3D TEE). METHODS: The MV was imaged throughout the cardiac cycle (CC) before and after the MitraClip procedure using 3D TEE in 28 patients (mean age, 77 ± 8 years) with functional mitral regurgitation (FMR). Dynamic changes in the MV annulus geometry and anatomical MV orifice area (AMVOA) were quantified using a novel semi-automated software...
October 5, 2018: Journal of Echocardiography
https://www.readbyqxmd.com/read/30285762/echocardiographic-markers-of-dyssynchrony-as-predictors-of-super-response-to-cardiac-resynchronisation-therapy-a-pilot-study
#7
V A Kuznetsov, A M Soldatova, J D Kasprzak, D V Krinochkin, N N Melnikov
BACKGROUND: Some patients with congestive heart failure have greater improvement of cardiac remodelling after cardiac resynchronisation therapy (CRT) and they are identified as super-responders (SRs). It remains unclear if echocardiographic markers of dyssynchrony could accuratelly predict super-response to CRT. The aim of this study is to evaluate potential echocardiographic predictors associated with super-response to CRT. METHODS: Fifthy nine CRT patients (mean age 52...
October 2, 2018: Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/30281444/fast-segmentation-of-the-left-atrial-appendage-in-3d-transesophageal-echocardiographic-images
#8
Pedro Morais, Sandro Queiros, Pieter De Meester, Werner Budts, Joao L Vilaca, Joao Manuel R S Tavares, Jan D'hooge
Left atrial appendage (LAA) has been generally described as "our most lethal attachment", being considered the major source of thromboembolism in patients with non-valvular atrial fibrillation. Currently, LAA occlusion can be offered as a treatment for these patients, obstructing the LAA through a percutaneously delivered device. Nevertheless, correct device sizing is not straightforward, requiring the manual analysis of peri-procedural images. This approach is sub-optimal, time demanding and highly variable between experts, which can result in lengthy procedures and excess manipulations...
September 28, 2018: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/30279933/trans-catheter-aortic-valve-implantation-without-contrast-using-the-lotus-mechanically-expanded-heart-valve
#9
Noman Ali, Smriti Saraf, Dominik Schlosshan, Michael Cunnington, Christopher J Malkin, Daniel J Blackman
Trans-catheter aortic valve implantation (TAVI) has become an established treatment for inoperable and high-surgical risk patients with severe, symptomatic aortic stenosis (AS). Post-procedural acute kidney injury (AKI) is a frequent complication following TAVI and is associated with increased mortality. Patients with pre-existing chronic renal impairment are at particularly high risk. The etiology of post-TAVI AKI is multi-factorial, but the principal procedural issues are contrast-induced nephropathy, and renal hypoperfusion secondary to intra-procedural hypotension...
October 2018: Journal of Cardiology Cases
https://www.readbyqxmd.com/read/30276211/a-combined-fully-convolutional-networks-and-deformable-model-for-automatic-left-ventricle-segmentation-based-on-3d-echocardiography
#10
Suyu Dong, Gongning Luo, Kuanquan Wang, Shaodong Cao, Qince Li, Henggui Zhang
Segmentation of the left ventricle (LV) from three-dimensional echocardiography (3DE) plays a key role in the clinical diagnosis of the LV function. In this work, we proposed a new automatic method for the segmentation of LV, based on the fully convolutional networks (FCN) and deformable model. This method implemented a coarse-to-fine framework. Firstly, a new deep fusion network based on feature fusion and transfer learning, combining the residual modules, was proposed to achieve coarse segmentation of LV on 3DE...
2018: BioMed Research International
https://www.readbyqxmd.com/read/30269909/comparison-between-three-dimensional-echocardiography-and-computed-tomography-for-comprehensive-tricuspid-annulus-and-valve-assessment-in-severe-tricuspid-regurgitation-implications-for-tricuspid-regurgitation-grading-and-transcatheter-therapies
#11
Fabien Praz, Omar K Khalique, Leon G Dos Reis Macedo, Todd C Pulerwitz, Jennifer Jantz, Isaac Y Wu, Alex Kantor, Amisha Patel, Torsten Vahl, Vinayak Bapat, Isaac George, Tamim Nazif, Susheel K Kodali, Martin B Leon, Rebecca T Hahn
BACKGROUND: Tricuspid valve imaging is frequently challenging and requires the use of multiple modalities. Knowledge of limitations and methodologic discrepancies among different imaging techniques is crucial for planning transcatheter valve interventions. METHODS: Thirty-eight patients with severe symptomatic tricuspid regurgitation were included in this retrospective analysis. Tricuspid annulus (TA) measurements were made during mid-diastole using three-dimensional (3D) transthoracic echocardiographic direct planimetry (TTE_direct) and transesophageal echocardiographic direct planimetry (TEE_direct)...
September 27, 2018: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/30238697/comparison-of-the-mitral-valve-morphologies-of-cavalier-king-charles-spaniels-and-dogs-of-other-breeds-using-3d-transthoracic-echocardiography
#12
Giulio Menciotti, Michele Borgarelli, Michael Aherne, Paula Camacho, Jens Häggström, Ingrid Ljungvall, Sunshine M Lahmers, Jonathan A Abbott
BACKGROUND: Myxomatous mitral valve disease (MMVD) is more prevalent in Cavalier King Charles Spaniels (CKCSs) compared to dogs of other breeds at a given age. Abnormal valvular stress is thought to contribute to the development and progression of MMVD, and a relationship exists between mitral valve (MV) morphology and stress acting on the valve. OBJECTIVES: To determine whether the MV morphology of healthy adult CKCSs differs from the morphology of healthy adult dogs of other breeds determined by RT-3DTTE...
September 20, 2018: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/30227848/3d-electroanatomical-mapping-is-less-sensitive-to-atrial-remodeling-in-estimation-of-true-left-atrial-volume-than-echocardiography
#13
Zdenka Fingrova, Josef Marek, Stepan Havranek, Lukas Lambert, Petr Kuchynka, Ales Linhart
BACKGROUND: Left atrial (LA) enlargement has been identified as a predictor of worse clinical outcome after catheter ablation for atrial fibrillation (AF). We investigated the correspondence of LA size parameters assessed by echocardiography, CT and 3D electroanatomical mapping in patients with AF treated by catheter ablation. METHODS: We analyzed echocardiographic LA volume measurements by disc summation method (LAVDISC ), computed tomography (LAVCT ) and 3D electroanatomical mapping (LAVCARTO ) in 100 pts...
September 18, 2018: BMC Medical Imaging
https://www.readbyqxmd.com/read/30223837/comparison-of-non-triggered-magnetic-resonance-imaging-and-echocardiography-for-the-assessment-of-left-atrial-volume-and-morphology
#14
Nicoline W E van den Berg, Dean R P P Chan Pin Yin, Wouter R Berger, Jolien Neefs, Rianne H A C M De Bruin-Bon, Henk A Marquering, Annelie Slaar, R Nils Planken, Joris R de Groot
BACKGROUND: Advanced atrial fibrillation (AF) patients have persistent AF, failed previous catheter ablation and/or an enlarged left atrium (LA), which is associated with a reduced success of AF ablation. Transthoracic echocardiography (TTE) and contrast enhanced magnetic resonance angiography (CE-MRA) are available to assess LA volume. However, it is unknown how these modalities relate in patients with advanced AF. We therefore compared the reproducibility of TTE and non-triggered CE-MRA in advanced AF patients and their ability to select patients with successful thoracoscopic AF ablation...
September 18, 2018: Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/30218777/chitosan-silk-fibroin-modified-nanofibrous-patches-with-mesenchymal-stem-cells-prevent-heart-remodeling-post-myocardial-infarction-in-rats
#15
Jiangwei Chen, Yingfei Zhan, Yabin Wang, Dong Han, Bo Tao, Zhenli Luo, Sai Ma, Qun Wang, Xiang Li, Li Fan, Congye Li, Hongbing Deng, Feng Cao
Poor functional survival of the engrafted stem cells limits the therapeutic efficacy of stem-cell-based therapy for myocardial infarction (MI). Cardiac patch-based system for cardiac repair has emerged as a potential regenerative strategy for MI. This study aimed to design a cardiac patch to improve the retention of the engrafted stem cells and provide mechanical scaffold for preventing the ventricular remodeling post-MI. The patches were fabricated with electrospinning cellulose nanofibers modified with chitosan/silk fibroin (CS/SF) multilayers via layer-by-layer (LBL) coating technology...
September 13, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/30216120/exercise-induced-shift-in-right-ventricular-contraction-pattern-novel-marker-of-athlete-s-heart
#16
Balint Karoly Lakatos, Orsolya Kiss, Marton Tokodi, Zoltan Toser, Nora Sydo, Gergo Merkely, Mate Babity, Monika Szilagyi, Zsuzsanna Komocsin, Csaba Bognar, Attila Kovacs, Bela Merkely
BACKGROUND: Data is limited about the functional adaptation of the right ventricle (RV) to intense exercise. Our aim was to characterize the RV mechanical pattern in top-level athletes using 3D echocardiography. METHODS AND RESULTS: A total of 60 elite water polo athletes (19±4 years, 17±6 hours of training/week, 50% female) and 40 healthy, sedentary controls were enrolled. We measured RV end-diastolic volume index (RVEDVi) and ejection fraction (RVEF) using dedicated software...
September 14, 2018: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/30191507/echocardiographic-assessment-of-right-ventricular-function-current-clinical-practice
#17
Matthias Schneider, Stefan Aschauer, Julia Mascherbauer, Hong Ran, Christina Binder, Irene Lang, Georg Goliasch, Thomas Binder
Echocardiographic evaluation of right ventricular (RV) function is a challenge due to the complex anatomy of the RV. Several transthoracic echocardiographic methods have been suggested for the quantification of RV function. However, many of the parameters are time consuming and need dedicated hardware and software. We suspected that the majority of the established markers are not used on a wide basis. In a multinational online survey, we evaluated the use of current clinical standards for the quantification of RV function in clinical practice...
September 6, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/30190799/newer-echocardiographic-techniques-for-aortic-valve-imaging-clinical-aids-today-clinical-practice-tomorrow
#18
REVIEW
Nidhish Tiwari, Kavisha Patel
Increasing life expectancy is expected to lead to a corresponding increase in the prevalence of aortic valve disease (AVD). Further, the number of indications for transcatheter aortic valve replacement (TAVR) as a treatment option for AVD is expanding, with a growing role for echocardiography in its management. In this review we summarize the current literature on some newer echocardiographic modalities and the parameters they generate, with a particular focus on their prognostic and clinical value beyond conventional methods in the management of aortic stenosis, TAVR, and aortic regurgitation...
August 26, 2018: World Journal of Cardiology
https://www.readbyqxmd.com/read/30190645/assessment-of-left-ventricular-regional-wall-motion-abnormalities-using-regional-time-volume-curves-obtained-by-real-time-three-dimensional-echocardiography
#19
Ghada Youssef, Zakarya Saad, Waleed Ammar, Yasser Sharaf
Background: Three-dimensional echocardiography provides a volumetric measurement of global and regional left ventricular (LV) function. It avoids the subjectivity of 2D echocardiography in the assessment of regional wall motion abnormalities (RWMA). Purpose: Evaluate the feasibility and practicality of 3D echocardiography in the evaluation of ischemic patients with abnormal regional LV contractility. Methods: The study included 40 patients with ischemic heart disease and RWMA as well as 30 control subjects...
September 2018: The Egyptian heart journal: (EHJ): official bulletin of the Egyptian Society of Cardiology
https://www.readbyqxmd.com/read/30187654/assessment-of-diastolic-function-and-atrial-remodeling-by-mri-validation-and-correlation-with-echocardiography-and-filling-pressure
#20
Felicia Seemann, Lauren A Baldassarre, Fiorella Llanos-Chea, Ricardo A Gonzales, Karl Grunseich, Chenxi Hu, Lissa Sugeng, Judith Meadows, Einar Heiberg, Dana C Peters
Atrial fibrosis can be estimated noninvasively by magnetic resonance imaging (MRI) using late gadolinium enhancement (LGE), but diastolic dysfunction is clinically assessed by transthoracic echocardiography (TTE), and rarely by MRI. This study aimed to evaluate well-established diastolic parameters using MRI, and validate them with TTE and left ventricular (LV) filling pressures, and to study the relationship between left atrial (LA) remodeling and parameters of diastolic function. The study retrospectively included 105 patients (53 ± 16 years, 39 females) who underwent 3D LGE MRI between 2012 and 2016...
September 2018: Physiological Reports
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