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3d echocardiography

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https://www.readbyqxmd.com/read/28712559/impact-of-percutaneous-mitral-valvuloplasty-on-left-ventricular-function-in-patients-with-mitral-stenosis-assessed-by-3d-echocardiography
#1
William Antonio M Esteves, Lucas Lodi-Junqueira, Juliana Rodrigues Soares, Guilherme Rafael Sant'Anna Athayde, Gabriela Assunção Goebel, Lucas Amorim Carvalho, Xin Zeng, Judy Hung, Timothy C Tan, Maria Carmo Pereira Nunes
BACKGROUND: The status of intrinsic left ventricular (LV) contractility in patients with isolated rheumatic mitral stenosis (MS) has been debated. The acute changes in loading conditions after percutaneous mitral valvuloplasty (PMV) may affect LV performance. We aimed to examine the acute effects of PMV on LV function and identify factors associated with LV ejection fraction (LVEF) changes, and determinants of long-term events following the procedure. METHODS: One hundred and forty-two patients who underwent PMV for symptomatic rheumatic MS (valve area of 0...
June 23, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28711164/on-estimating-intraventricular-hemodynamic-forces-from-endocardial-dynamics-a-comparative-study-with-4d-flow-mri
#2
Gianni Pedrizzetti, Per M Arvidsson, Johannes Töger, Rasmus Borgquist, Federico Domenichini, Håkan Arheden, Einar Heiberg
Intraventricular pressure gradients or hemodynamic forces, which are their global measure integrated over the left ventricular volume, have a fundamental importance in ventricular function. They may help revealing a sub-optimal cardiac function that is not evident in terms of tissue motion, which is naturally heterogeneous and variable, and can influence cardiac adaptation. However, hemodynamic forces are not utilized in clinical cardiology due to the unavailability of simple non-invasive measurement tools...
July 5, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28706865/echocardiography-of-the-tricuspid-valve-acknowledgements
#3
Jamahal Luxford, Levi Bassin, Michael D'Ambra
The tricuspid valve (TV), although occasionally considered "neglected" is the subject of renewed and increasing interest. Factors include an awareness that tricuspid value dysfunction is influential in patient outcomes, an improving understanding of valve anatomy and function and evolving techniques available to address tricuspid regurgitation. Tricuspid regurgitation (TR) can be classified as being due to primary diseases of the valve or functional in nature, with the majority being functional. Whilst it was previously believed that such functional TR, resulting from left sided disease, would resolve after correction of the underlying pathology this is now known not to be true...
May 2017: Annals of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28706589/catheter-ablation-of-atrial-fibrillation-facilitated-by-preprocedural-three-dimensional-transesophageal-echocardiography-long-term-outcome
#4
Klaus Kettering, Felix Gramley, Stephan von Bardeleben
AIM: To evaluate the long-term outcome of catheter ablation of atrial fibrillation (AF) facilitated by preprocedural three-dimensional (3-D) transesophageal echocardiography. METHODS: In 50 patients, 3D transesophageal echocardiography (3D TEE) was performed immediately prior to an ablation procedure (paroxysmal AF: 30 patients, persistent AF: 20 patients). The images were available throughout the ablation procedure. Two different ablation strategies were used. In most of the patients with paroxysmal AF, the cryoablation technique was used (Arctic Front Balloon, CryoCath Technologies/Medtronic; group A2)...
June 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28704916/three-dimensional-echocardiography-in-adult-congenital-heart-disease
#5
REVIEW
Hyun Suk Yang
Congenital heart disease (CHD) is now more common in adults than in children due to improvements in fetal echo, neonatal and pediatric care, and surgical techniques leading to dramatically increased survivability into adulthood. Adult patients with CHD, regardless of prior cardiac surgery, experience further cardiac problems or therapeutic challenges; therefore, a non-invasive, easily accessible echocardiographic examination is an essential follow-up tool. Among echocardiographic modalities, three-dimensional (3D) echocardiography provides better delineation of spatial relationships in complex cardiac geometries and more accurate volumetric information without geometric assumptions...
July 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/28695443/3d-experimental-and-computational-analysis-of-eccentric-mitral-regurgitant-jets-in-a-mock-imaging-heart-chamber
#6
Yifan Wang, Annalisa Quaini, Sunčica Čanić, Marija Vukicevic, Stephen H Little
Mitral valve regurgitation (MR) is a disorder of the heart in which the mitral valve does not close properly. This causes an abnormal leaking of blood backwards from the left ventricle into the left atrium during the systolic contractions of the left ventricle. Noninvasive assessment of MR using echocardiography is an ongoing challenge. In particular, a major problem are eccentric or Coanda regurgitant jets which hug the walls of the left atrium and appear smaller in the color Doppler image of regurgitant flow...
July 10, 2017: Cardiovascular Engineering and Technology
https://www.readbyqxmd.com/read/28688857/three-dimensional-echocardiographic-automated-quantification-of-left-heart-chamber-volumes-using-an-adaptive-analytics-algorithm-feasibility-and-impact-of-image-quality-in-nonselected-patients
#7
Diego Medvedofsky, Victor Mor-Avi, Isida Byku, Amita Singh, Lynn Weinert, Megan Yamat, Eric Kruse, Boguslawa Ciszek, Alma Nelson, Kyoko Otani, Masaaki Takeuchi, Roberto M Lang
BACKGROUND: Although 3D echocardiography (3DE) allows accurate and reproducible quantification of cardiac chambers, it has not been integrated into clinical practice because it relies on manual input, which interferes with workflow. A recently developed automated adaptive analytics algorithm for simultaneous quantification of left ventricular and atrial (LV, LA) volumes was found to be accurate and reproducible in patients with good images. We sought to prospectively test its feasibility and accuracy in consecutive patients in relationship with image quality and reader experience...
July 6, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28685315/clinical-feasibility-and-validation-of-3d-principal-strain-analysis-from-cine-mri-comparison-to-2d-strain-by-mri-and-3d-speckle-tracking-echocardiography
#8
Alessandro Satriano, Bobak Heydari, Mariam Narous, Derek V Exner, Yoko Mikami, Monica M Attwood, John V Tyberg, Carmen P Lydell, Andrew G Howarth, Nowell M Fine, James A White
Two-dimensional (2D) strain analysis is constrained by geometry-dependent reference directions of deformation (i.e. radial, circumferential, and longitudinal) following the assumption of cylindrical chamber architecture. Three-dimensional (3D) principal strain analysis may overcome such limitations by referencing intrinsic (i.e. principal) directions of deformation. This study aimed to demonstrate clinical feasibility of 3D principal strain analysis from routine 2D cine MRI with validation to strain from 2D tagged cine analysis and 3D speckle tracking echocardiography...
July 6, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28685199/pacemaker-induced-tricuspid-regurgitation-is-uncommon-immediately-post-implantation
#9
Daniel P Rothschild, James A Goldstein, Nathan Kerner, Amr E Abbas, Meet Patel, Wai Shun Wong
BACKGROUND: Prior studies report permanent pacemaker (PPM)-induced tricuspid regurgitation (TR) in up to one third of cases late post-implantation. We sought to assess the extent of immediate PPM-induced TR. METHODS: Forty patients undergoing PPM implant were prospectively enrolled. Patients with pre-existing moderate or severe TR or an RVSP >50 mmHg were excluded. Pre- and immediate post-implantation transthoracic echocardiography (TTE) analyzed TR grade according to established methods...
July 6, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/28680627/utility-of-real-time-three-dimensional-echocardiography-in-improved-assessment-of-a-mitral-valve-papillary-fibroelastoma
#10
Rahul Suresh, Paul J Boor, Ghannam A Al-Dossari, Tareq Abu-Sharifeh, Sridhar Venkatachalam, Rafic F Berbarie
Primary cardiac tumors are exceedingly rare. They are usually first identified by transthoracic echocardiography. However, transesophageal echocardiography (TEE), with the aid of real-time three-dimensional (3D) imaging, can provide additional important mass characteristics. We present a case that demonstrates the usefulness of 3D TEE in characterizing a papillary fibroelastoma.
July 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28678069/echocardiographic-assessment-of-mitral-stenosis-orifice-area-a-comparison-of-a-novel-three-dimensional-method-versus-conventional-techniques
#11
Sergey Karamnov, Nelson Burbano-Vera, Chuan-Chin Huang, John A Fox, Stanton K Shernan
BACKGROUND: A comprehensive evaluation of mitral stenosis (MS) severity commonly utilizes two-dimensional (2D) echocardiography techniques. However, the complex three-dimensional (3D) structure of the mitral valve (MV) poses challenges to accurate measurements of its orifice area by 2D imaging modalities. We aimed to assess MS severity by comparing measurements of the MV orifice area using conventional echocardiography methods to 3D orifice area (3DOA), a novel echocardiographic technique which minimizes geometric assumptions...
July 1, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28677508/multimodality-imaging-for-interventional-cardiology
#12
Simona Celi, Nicola Martini, Luigi Emilio Pastormerlo, Vincenzo Positano, Sergio Berti
BACKGROUND: In the last decades, interventional cardiology has received fast and wide implementation as an effective alternative treatment to surgery for several congenital and acquired diseases. In this scenario, imaging provides solutions for most clinical needs, from diagnosis to prognosis and risk stratification, as well as anatomical and functional assessment. METHODS: In this review article, we present recent innovations in medical imaging for structural heart disease and coronary artery disease, emphasizing the progress achieved in the field of multimodality imaging and the solutions proposed to some as-yet unresolved technical problems for safe and effective procedural performance...
July 4, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28671551/3d-printing-for-sizing-left-atrial-appendage-closure-device-head-to-head-comparison-with-computed-tomography-and-transesophageal-echocardiography
#13
Michaela M Hell, Stephan Achenbach, In Seong Yoo, Joerg Franke, Florian Blachutzik, Jens Roether, Verena Graf, Dorette Raaz-Schrauder, Mohamed Marwan, Christian Schlundt
AIMS: Device sizing for LAA closure using transesophageal echocardiography (TEE) can be challenging due to complex LAA anatomy. We investigated whether the use of 3D-printed left atrial appendage (LAA) models based on pre-procedural computed tomography (CT) permits accurate device sizing. METHODS AND RESULTS: 22 patients (73±8 years, 55% male) with atrial fibrillation requiring anticoagulation at high bleeding risk underwent LAA closure (WatchmanTM device). Pre-procedurally, LAA was sized by TEE and third-generation dual-source CT...
July 4, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28667807/improved-algorithm-for-ostium-size-assessment-in-watchman-left-atrial-appendage-occlusion-using-three-dimensional-echocardiography
#14
Maximilian Schmidt-Salzmann, Felix Meincke, Felix Kreidel, Tobias Spangenberg, Alexander Ghanem, Karl-Heinz Kuck, Martin W Bergmann
AIMS: Correct sizing of the ostium is a crucial step in left atrial appendage (LAA) occlusion procedures. However, unfavorable anatomy of the ostium often complicates the assessment of the true ostium diameter. We hypothesized that area-derived diameter (ADD) and perimeter-derived diameter (PDD) from three-dimensional transesophageal echocardiogram (3D-TEE) can facilitate this step of the procedure as compared with two-dimensional (2D) measurements. METHODS AND RESULTS: For 55 patients within the ALSTER-LAA registry, retrospective analysis of PDD and ADD was correlated with 2D measurements used during the procedure to ascertain correct size of the Watchman device (Boston Scientific)...
July 2017: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/28664568/circulating-microrna-in-patients-with-repaired-tetralogy-of-fallot
#15
Clare Tm Lai, Enders Ko Ng, Pak-Cheong Chow, Ava Kwong, Yiu-Fai Cheung
BACKGROUND: Emerging data suggest that heart-related microRNAs (miRs) may serve as circulating biomarkers of myocardial injury. We aimed to determine the circulating profile of miRs in patients with volume-overloaded right ventricles after repair of tetralogy (TOF). METHODS: A total of 104 TOF patients and 70 controls were recruited. The study was conducted into two phases: I) determination of circulating heart-related miRs described in left heart diseases (miR-1, miR-133a, miR208a, miR-208b and miR423-5p) by quantitative real time-PCR in 49 patients and 30 controls and followed by validation in an independent cohort of 55 patients and 40 controls; II) expression profiling of serum samples from 8 patients and 8 controls, followed by validation...
June 29, 2017: European Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28647828/3d-printing-of-severe-hypertrophic-cardiomyopathy-in-a-child-with-rasopathy
#16
N F Johnston, T Prendiville, C J McMahon
We describe the use of 3D printing in conjunction with echocardiography in assessing hypertrophic cardiomyopathy in a boy with Rasopathy. 3D printing may supplement conventional imaging including echocardiography and MRI in the evaluation of hypertrophic cardiomyopathy.
June 25, 2017: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/28633478/efficacy-of-3d-transoesophageal-echocardiography-for-transcatheter-device-closure-of-atrial-septal-defect-without-balloon-sizing
#17
Jeong Yoon Jang, Ran Heo, Min Soo Cho, Jaeseok Bae, Jung Ae Hong, Sahmin Lee, Jung-Min Ahn, Duk-Woo Park, Dae-Hee Kim, Duk-Hyun Kang, Jae-Kwan Song, Jong-Min Song
Aims: Using balloon sizing to determine device size may cause complications and increase procedure time in performing transcatheter closure of atrial septal defect (ASD). We aimed to validate the clinical utility of a formula using measurements from 3D transoesophageal echocardiography (TOE) images in performing the procedure without balloon sizing. Methods and results: We enrolled 248 consecutive patients with ASD in a prospective registry. In the first tier (n = 53), we determined the device size before the procedure using our formula and performed balloon sizing during the procedure to verify our decision...
June 19, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28631106/transthoracic-3d-echocardiographic-left-heart-chamber-quantification-in-patients-with-bicuspid-aortic-valve-disease
#18
Allard T van den Hoven, Jackie S Mc-Ghie, Raluca G Chelu, Anthonie L Duijnhouwer, Vivan J M Baggen, Adriaan Coenen, Wim B Vletter, Marcel L Dijkshoorn, Annemien E van den Bosch, Jolien W Roos-Hesselink
Integration of volumetric heart chamber quantification by 3D echocardiography into clinical practice has been hampered by several factors which a new fully automated algorithm (Left Heart Model, (LHM)) may help overcome. This study therefore aims to evaluate the feasibility and accuracy of the LHM software in quantifying left atrial and left ventricular volumes and left ventricular ejection fraction in a cohort of patients with a bicuspid aortic valve. Patients with a bicuspid aortic valve were prospectively included...
June 19, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28612508/incremental-benefit-of-three-dimensional-transesophageal-echocardiography-in-the-assessment-of-a-primary-pericardial-hemangioma
#19
Mohammed J Arisha, Ming C Hsiung, Navin C Nanda, Ahmed ElKaryoni, Ahmed H Mohamed, Jeng Wei
Hemangiomas are rarely found in the heart and pericardial involvement is even more rare. We report a case of primary pericardial hemangioma, in which three-dimensional transesophageal echocardiography (3DTEE) provided incremental benefit over standard two-dimensional images. Our case also highlights the importance of systematic cropping of the 3D datasets in making a diagnosis of pericardial hemangioma with a greater degree of certainty. In addition, we also provide a literature review of the features of cardiac/pericardial hemangiomas in a tabular form...
June 13, 2017: Echocardiography
https://www.readbyqxmd.com/read/28603000/validation-of-a-defibrillation-lead-ventricular-volume-measurement-compared-to-three-dimensional-echocardiography
#20
David E Haines, Wilson Wong, Robert Canby, Coty Jewell, Mahmoud Houmsse, David Pederson, Lissa Sugeng, John Porterfield, Anil Kottam, John Pearce, Jon Valvano, Joel Michalek, Aron Trevino, Sandeep Sagar, Marc D Feldman
BACKGROUND: There is increasing evidence that using frequent invasive measures of pressure in patients with heart failure results in improved outcomes compared to traditional measures. Admittance, a measure of volume derived from preexisting defibrillation leads, is proposed as a new technique to monitor cardiac hemodynamics in patients with an implantable defibrillator. OBJECTIVE: The purpose of this study was to evaluate the accuracy of a new ventricular volume sensor (VVS, CardioVol) compared with 3-dimenssional echocardiography (echo) in patients with an implantable defibrillator...
June 9, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
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