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https://www.readbyqxmd.com/read/28822982/evaluation-of-aortic-regurgitation-with-cardiac-magnetic-resonance-imaging-a-systematic-review
#1
REVIEW
James C Lee, Kelley R Branch, Christian Hamilton-Craig, Eric V Krieger
This review summaries the utility, application and data supporting use of cardiac magnetic resonance imaging (CMR) to evaluate and quantitate aortic regurgitation. We systematically searched Medline and PubMed for original research articles published since 2000 that provided data on the quantitation of aortic regurgitation by CMR and identified 11 articles for review. Direct aortic measurements using phase contrast allow quantitation of volumetric flow across the aortic valve and are highly reproducible and accurate compared with echocardiography...
August 19, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28808772/longitudinal-strain-assessed-by-cardiac-magnetic-resonance-correlates-to-hemodynamic-findings-in-patients-with-severe-aortic-stenosis-and-predicts-positive-remodeling-after-transcatheter-aortic-valve-replacement
#2
Dominik Buckert, Maciej Cieslik, Raid Tibi, Michael Radermacher, Volker Rasche, Peter Bernhardt, Vinzenz Hombach, Wolfgang Rottbauer, Jochen Wöhrle
AIMS: To assess left-ventricular strain parameters before and after transcatheter aortic valve replacement (TAVR) by feature tracking cardiac magnetic resonance imaging (FT CMR) and to correlate the findings to hemodynamic state and left-ventricular remodeling. METHODS AND RESULTS: Patients with symptomatic AS underwent FT CMR before and after TAVR. Patients were carefully evaluated by a comprehensive work-up including CMR, echocardiography and left and right heart catheterization...
August 14, 2017: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/28802508/prognostic-significance-of-left-ventricular-fibrosis-in-patients-with-congenital-bicuspid-aortic-valve
#3
Gentian Lluri, Pierangelo Renella, J Paul Finn, Gabriel Vorobiof, Jamil Aboulhosn, Arjun Deb
This study sought to evaluate the prognostic value of left ventricular (LV) fibrosis assessed by late gadolinium enhancement (LGE) of the myocardium during cardiac magnetic resonance (CMR) imaging in patients with bicuspid aortic valve (BAV), which is associated with early aortic valve fibrosis and calcification. To what degree the LV myocardial wall is affected by fibrosis and its prognostic value is currently unknown. This is a retrospective, single-center study evaluating all adult patients with BAV who had CMR and followed from March 2002 to March 2016...
October 1, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28776135/importance-of-non-invasive-right-and-left-ventricular%C3%A2-variables-on-exercise-capacity-in-patients-with-tetralogy-of-fallot-hemodynamics
#4
Christian Meierhofer, Timon Tavakkoli, Andreas Kühn, Kurt Ulm, Alfred Hager, Jan Müller, Stefan Martinoff, Peter Ewert, Heiko Stern
Good quality of life correlates with a good exercise capacity in daily life in patients with tetralogy of Fallot (ToF). Patients after correction of ToF usually develop residual defects such as pulmonary regurgitation or stenosis of variable severity. However, the importance of different hemodynamic parameters and their impact on exercise capacity is unclear. We investigated several hemodynamic parameters measured by cardiovascular magnetic resonance (CMR) and echocardiography and evaluated which parameter has the most pronounced effect on maximal exercise capacity determined by cardiopulmonary exercise testing (CPET)...
August 3, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28764576/contemporary-evaluation-of-mitral-regurgitation-3d-echocardiography-cardiac-magnetic-resonance-and-procedural-planning
#5
Frank E Corrigan, Aneel Maini, Shawn Reginauld, Stamatios Lerakis
Mitral regurgitation is one of the more common forms of valvular heart disease. Given the expansion of therapies for structural heart disease, new therapies for mitral regurgitation are emerging. An accurate description and classification of mitral disease is important to understand pathology and provide recommendations for therapy. Areas covered: In the modern evaluation of mitral regurgitation, 3-dimensional echocardiography (3DE) and cardiac magnetic resonance imaging (CMR) play important roles which overcome the prior limitations of 2-dimensional echocardiography...
August 7, 2017: Expert Review of Cardiovascular Therapy
https://www.readbyqxmd.com/read/28750632/impact-of-bileaflet-mitral-valve-prolapse-on-quantification-of-mitral-regurgitation-with-cardiac-magnetic-resonance-a-single-center-study
#6
Gabriella Vincenti, Pier Giorgio Masci, Tobias Rutz, Jonathan De Blois, Milan Prša, Xavier Jeanrenaud, Juerg Schwitter, Pierre Monney
BACKGROUND: To quantify mitral regurgitation (MR) with CMR, the regurgitant volume can be calculated as the difference between the left ventricular (LV) stroke volume (SV) measured with the Simpson's method and the reference SV, i.e. the right ventricular SV (RVSV) in patients without tricuspid regurgitation. However, for patients with prominent mitral valve prolapse (MVP), the Simpson's method may underestimate the LV end-systolic volume (LVESV) as it only considers the volume located between the apex and the mitral annulus, and neglects the ventricular volume that is displaced into the left atrium but contained within the prolapsed mitral leaflets at end systole...
July 27, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/28728865/mass-spring-models-for-the-simulation-of-mitral-valve-function-looking-for-a-trade-off-between-reliability-and-time-efficiency
#7
O A Pappalardo, F Sturla, F Onorati, G Puppini, M Selmi, G B Luciani, G Faggian, A Redaelli, E Votta
Patient-specific finite element (FE) models can assess the impact of mitral valve (MV) repair on the complex MV anatomy and function. However, FE excessive time requirements hamper their use for surgical planning; mass-spring models (MSMs) represent a more approximate approach but can provide almost real-time simulations. On this basis, we implemented MSMs of three healthy MVs from cardiac magnetic resonance (cMR) imaging to simulate the systolic MV closure, including the in vivo papillary muscles and annular kinematics, and the anisotropic and non-linear mechanical response of MV tissues...
July 17, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28694784/4d-flow-analysis-of-bav-related-fluid-dynamic-alterations-evidences-of-wall-shear-stress-alterations-in-absence-of-clinically-relevant-aortic-anatomical-remodeling
#8
Filippo Piatti, Francesco Sturla, Malenka M Bissell, Selene Pirola, Massimo Lombardi, Igor Nesteruk, Alessandro Della Corte, Alberto C L Redaelli, Emiliano Votta
Bicuspid aortic valve (BAV) is the most common congenital cardiac disease and is a foremost risk factor for aortopathies. Despite the genetic basis of BAV and of the associated aortopathies, BAV-related alterations in aortic fluid-dynamics, and particularly in wall shear stresses (WSSs), likely play a role in the progression of aortopathy, and may contribute to its pathogenesis. To test whether WSS may trigger aortopathy, in this study we used 4D Flow sequences of phase-contrast cardiac magnetic resonance imaging (CMR) to quantitatively compare the in vivo fluid dynamics in the thoracic aorta of two groups of subjects: (i) five prospectively enrolled young patients with normo-functional BAV and with no aortic dilation and (ii) ten age-matched healthy volunteers...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28684436/major-adverse-events-and-atrial-tachycardia-in-ebstein-s-anomaly-predicted-by-cardiovascular-magnetic-resonance
#9
Riikka Rydman, Yumi Shiina, Gerhard-Paul Diller, Koichiro Niwa, Wei Li, Hideki Uemura, Anselm Uebing, Umberto Barbero, Beatriz Bouzas, Sabine Ernst, Tom Wong, Dudley J Pennell, Michael A Gatzoulis, Sonya V Babu-Narayan
OBJECTIVES: Patients with Ebstein's anomaly of the tricuspid valve (EA) are at risk of tachyarrhythmia, congestive heart failure and sudden cardiac death. We sought to determine the value of cardiovascular magnetic resonance (CMR) for predicting these outcomes. METHODS: Seventy-nine consecutive adult patients (aged 37±15 years) with unrepaired EA underwent CMR and were followed prospectively for a median 3.4 (range 0.4-10.9) years for clinical outcomes, namely major adverse cardiovascular events (MACEs: sustained ventricular tachycardia/heart failure hospital admission/cardiac transplantation/death) and first-onset atrial tachyarrhythmia (AT)...
July 6, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28662918/reproducibility-of-cardiac-magnetic-resonance-imaging-cmri-derived-right-ventricular-parameters-in-repaired-tetralogy-of-fallot-tof
#10
Ganesh Kumar Gnanappa, Imran Rashid, David Celermajer, Julian Ayer, Rajesh Puranik
BACKGROUND: Quantification of right ventricular (RV) volumes is challenging owing to variable reproducibility and is especially so in congenital heart disease. Cardiac magnetic resonance (CMR) has the ability to more comprehensively survey the entire right ventricle and is currently considered the gold standard. AIMS: We aimed to determine the inter-observer reproducibility of CMR-derived RV volumes generated by two independent and experienced (SCMR Level III) observers in Tetralogy of Fallot (ToF) patients with varying degrees of RV dilatation...
June 3, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28642994/cardiovascular-magnetic-resonance-imaging-to-assess-myocardial-fibrosis-in-valvular-heart-disease
#11
Tomaz Podlesnikar, Victoria Delgado, Jeroen J Bax
The left ventricular (LV) remodeling process associated with significant valvular heart disease (VHD) is characterized by an increase of myocardial interstitial space with deposition of collagen and loss of myofibers. These changes occur before LV systolic function deteriorates or the patient develops symptoms. Cardiovascular magnetic resonance (CMR) permits assessment of reactive fibrosis, with the use of T1 mapping techniques, and replacement fibrosis, with the use of late gadolinium contrast enhancement...
June 22, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28639972/imaging-in-repaired-tetralogy-of-fallot-with-a-focus-on-recent-advances-in-echocardiography
#12
Guillermo Larios, Mark K Friedberg
PURPOSE OF REVIEW: Imaging is essential for the management of adults with repaired tetralogy of Fallot (rToF). Echocardiography and cardiac magnetic resonance imaging are the central modalities to assess rToF. Here we review recent literature on imaging rToF, focusing on echocardiography and advances in assessment of cardiac mechanics. RECENT FINDINGS: Several two-dimensional, three-dimensional, and Doppler echo parameters have been proposed to assess pulmonary regurgitation, right ventricular volumes and ejection fraction, but most of them still have important limitations in their feasibility and reliability compared to cardiac magnetic resonance (CMR)...
July 20, 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/28575228/right-ventricular-outflow-tract-dimensions-in-arrhythmogenic-right-ventricular-cardiomyopathy-dysplasia-a-multicentre-study-comparing-echocardiography-and-cardiovascular-magnetic-resonance
#13
Alexander Gotschy, Ardan M Saguner, Markus Niemann, Sandra Hamada, Deniz Akdis, Ji-Na Yoon, Elena V Parmon, Victoria Delgado, Jeroen J Bax, Sebastian Kozerke, Corinna Brunckhorst, Firat Duru, Felix C Tanner, Robert Manka
Aims: Right ventricular outflow tract (RVOT) dilation is one of the echocardiographic criteria in the 2010 revised Task Force Criteria (TFC) of arrhythmogenic right ventricular cardiomyopathy/dysplasia (ARVC/D). However, studies comparing cardiac magnetic resonance (CMR) and transthoracic echocardiography (TTE) suggest a lower diagnostic accuracy of TTE due to its operator dependence and limited reproducibility. The goal of this study was to compare the 2010 TFC measures of RVOT dilation with three alternative measures for improving the echocardiographic assessment of RVOT in patients with ARVC/D...
May 26, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28570260/comparison-of-non-contrast-cardiovascular-magnetic-resonance-imaging-to-computed-tomography-angiography-for-aortic-annular-sizing-before-transcatheter-aortic-valve-replacement
#14
Jing Wang, Dinesh H Jagasia, Yamuna R Kondapally, Howard C Herrmann, Yuchi Han
BACKGROUND: Accurate measurement of aortic annulus is crucial before transcatheter aortic valve replacement (TAVR). Computed tomography (CT) angiography is the most commonly utilized method, but requires contrast administration. Cardiovascular magnetic resonance (CMR) imaging is a promising alternative modality to provide aortic annulus measurements. Few studies have compared the clinical feasibility and accuracy of non-contrast CMR to contrast-enhanced computed tomography (CT) angiography in order to provide a non-contrast alternative to CT annular sizing...
July 2017: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/28540067/utility-of-cardiac-magnetic-resonance-for-evaluation-of-mitral-regurgitation-prior-to-mitral-valve-surgery
#15
REVIEW
Neil K Mehta, Jiwon Kim, Jonathan Y Siden, Sara Rodriguez-Diego, Javid Alakbarli, Antonino Di Franco, Jonathan W Weinsaft
Mitral regurgitation (MR) is a common cause of morbidity worldwide and an accepted indication for interventional therapies which aim to reduce or resolve adverse clinical outcomes associated with MR. Cardiac magnetic resonance (CMR) provides highly accurate means of assessing MR, including a variety of approaches that can measure MR based on quantitative flow. Additionally, CMR is widely accepted as a reference standard for cardiac chamber quantification, enabling reliable detection of subtle changes in cardiac chamber size and function so as to guide decision-making regarding timing of mitral valve directed therapies...
April 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28540066/cine-cmr-partial-voxel-segmentation-demonstrates-increased-aortic-stiffness-among-patients-with-marfan-syndrome
#16
Parmanand Singh, Zaid Almarzooq, Noel C F Codell, Yi Wang, Mary J Roman, Richard B Devereux, Jonathan W Weinsaft
BACKGROUND: Standard cine-cardiac magnetic resonance (CMR) imaging is commonly used to evaluate cardiac structure, geometry and function. Prior studies have shown that automated segmentation via partial voxel interpolation (PVI) accurately quantifies phantom-based cardiac chamber volumes and necropsy left ventricular myocardial mass. Despite this, the applicability and usefulness of PVI in the determination of physiologic parameters of the aorta such as aortic stiffness has yet to be investigated...
April 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28540065/dynamic-and-quantitative-evaluation-of-degenerative-mitral-valve-disease-a-dedicated-framework-based-on-cardiac-magnetic-resonance-imaging
#17
Francesco Sturla, Francesco Onorati, Giovanni Puppini, Omar A Pappalardo, Matteo Selmi, Emiliano Votta, Giuseppe Faggian, Alberto Redaelli
BACKGROUND: Accurate quantification of mitral valve (MV) morphology and dynamic behavior over the cardiac cycle is crucial to understand the mechanisms of degenerative MV dysfunction and to guide the surgical intervention. Cardiac magnetic resonance (CMR) imaging has progressively been adopted to evaluate MV pathophysiology, although a dedicated framework is required to perform a quantitative assessment of the functional MV anatomy. METHODS: We investigated MV dynamic behavior in subjects with normal MV anatomy (n=10) and patients referred to surgery due to degenerative MV prolapse, classified as fibro-elastic deficiency (FED, n=9) and Barlow's disease (BD, n=10)...
April 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28536896/helical-distribution-of-hypertrophy-in-patients-with-hypertrophic-cardiomyopathy-prevalence-and-clinical-implications
#18
Dafne Viliani, Eduardo Pozo, Norma Aguirre, Alberto Cecconi, María J Olivera, Paloma Caballero, Luis J Jiménez-Borreguero, Fernando Alfonso
Recently a novel pattern of helical distribution of hypertrophy has been described in patients with hypertrophic cardiomyopathy (HCM). Our aim was to determine its prevalence and potential implications in an unselected cohort. One-hundred- and eight consecutive patients diagnosed with HCM by cardiac magnetic resonance (CMR) were included (median clinical follow up of 1718 days). All clinical and complementary test information was prospectively collected. The presence of a helical pattern was assessed by a simple measurement of the maximal left ventricle (LV) wall thickness (LVWT) for each of the 17 classical LV segments and it was classified in one of three types according to its extension...
May 23, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28535761/the-emerging-role-of-cardiovascular-magnetic-resonance-in-the-evaluation-of-hypertensive-heart-disease
#19
REVIEW
Sophie Mavrogeni, Vasiliki Katsi, Vasiliki Vartela, Michel Noutsias, George Markousis-Mavrogenis, Genovefa Kolovou, Athanasios Manolis
BACKGROUND: Arterial hypertension is the commonest cause of cardiovascular death. It may lead to hypertensive heart disease (HHD), including heart failure (HF), ischemic heart disease (IHD) and left ventricular hypertrophy (LVH). MAIN BODY: According to the 2007 ESH/ESC guidelines, the recommended imaging technique is echocardiography (echo), when a more sensitive detection of LVH than that provided by ECG, is needed. Cardiovascular Magnetic Resonance (CMR), a non-invasive, non-radiating technique, offers the following advantages, beyond echo: a) more reliable and reproducible measurements of cardiac parameters such as volumes, ejection fraction and cardiac mass b) more accurate differentiation of LVH etiology by providing information about tissue characterisation c) more accurate evaluation of myocardial ischemia, specifically if small vessels disease is present d) technique of choice for diagnosis of renovascular, aortic tree/branches lesions and quantification of aortic valve regurgitation e) technique of choice for treatment evaluation in clinical trials...
May 23, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28502640/a-cohort-study-reveals-myocarditis-to-be-a-rare-and-life-threatening-presentation-of-large-vessel-vasculitis
#20
Katie Bechman, Deepa Gopalan, Petros Nihoyannopoulos, Justin C Mason
BACKGROUND: The predominant forms of adult large vessel vasculitis (LVV) are giant cell arteritis (GCA) and Takayasu arteritis (TA). Cardiac involvement in LVV is a cause of morbidity and mortality, particularly in TA. Cardiac failure is most commonly secondary to uncontrolled arterial hypertension or myocardial ischaemia. Pulmonary hypertension and aortic valve incompetence following ascending aortic dilatation represent other serious cardiovascular complications. However, cardiac failure as a consequence of myocarditis is rarely reported, principally in single case reports or in autopsy studies...
April 4, 2017: Seminars in Arthritis and Rheumatism
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