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Circulation. Cardiovascular Imaging

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https://www.readbyqxmd.com/read/28093416/noninvasive-estimation-of-the-severity-of-aortic-stenosis-going-beyond-bernoulli
#1
EDITORIAL
Alan G Fraser, Piet Claus
No abstract text is available yet for this article.
January 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28093415/the-aging-human-heart
#2
EDITORIAL
João A C Lima
No abstract text is available yet for this article.
January 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28093414/fetal-growth-restriction-and-long-term-cardiovascular-risk-is-it-time-to-get-with-the-program
#3
EDITORIAL
David M Harrild, Gerald R Marx
No abstract text is available yet for this article.
January 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28093413/persistence-of-cardiac-remodeling-in-preadolescents-with-fetal-growth-restriction
#4
Sebastian Imre Sarvari, Merida Rodriguez-Lopez, Marta Nuñez-Garcia, Marta Sitges, Alvaro Sepulveda-Martinez, Oscar Camara, Constantine Butakoff, Eduard Gratacos, Bart Bijnens, Fatima Crispi
BACKGROUND: Fetal growth restriction (FGR) affects 5% to 10% of newborns and is associated with increased cardiovascular mortality in adulthood. We evaluated whether prenatal cardiovascular changes previously demonstrated in FGR persist into preadolescence. METHODS AND RESULTS: A cohort study of 58 FGR (defined as birth weight below 10th centile) and 94 normally grown fetuses identified in utero and followed-up into preadolescence (8-12 years of age) by echocardiography and 3-dimensional shape computational analysis...
January 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28093412/beyond-bernoulli-improving-the-accuracy-and-precision-of-noninvasive-estimation-of-peak-pressure-drops
#5
Fabrizio Donati, Saul Myerson, Malenka M Bissell, Nicolas P Smith, Stefan Neubauer, Mark J Monaghan, David A Nordsletten, Pablo Lamata
BACKGROUND: Transvalvular peak pressure drops are routinely assessed noninvasively by echocardiography using the Bernoulli principle. However, the Bernoulli principle relies on several approximations that may not be appropriate, including that the majority of the pressure drop is because of the spatial acceleration of the blood flow, and the ejection jet is a single streamline (single peak velocity value). METHODS AND RESULTS: We assessed the accuracy of the Bernoulli principle to estimate the peak pressure drop at the aortic valve using 3-dimensional cardiovascular magnetic resonance flow data in 32 subjects...
January 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28093411/age-and-sex-related-influences-on-left-ventricular-mechanics-in-elderly-individuals-free-of-prevalent-heart-failure-the-aric-study-atherosclerosis-risk-in-communities
#6
Chung-Lieh Hung, Alexandra Gonçalves, Amil M Shah, Susan Cheng, Dalane Kitzman, Scott D Solomon
BACKGROUND: Advanced age is related to left ventricular (LV) remodeling. We sought to investigate the relationships between aging, elevated hemodynamic load, cardiac mechanics, and LV remodeling in an elderly community-based population. METHODS AND RESULTS: We studied 1105 subjects (76±5 years, 61% women) without prevalent heart failure, who attended the visit 5 of the ARIC study (Atherosclerosis Risk in Communities). LV global longitudinal strain, global circumferential strain, and torsion indices were analyzed using 3-dimensional echocardiography...
January 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28073807/next-steps-in-modeling-the-tricuspid-valve
#7
EDITORIAL
Pravin V Patil, Susan E Wiegers
No abstract text is available yet for this article.
January 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28073806/functional-tricuspid-regurgitation-caused-by-chronic-atrial-fibrillation-a-real-time-3-dimensional-transesophageal-echocardiography-study
#8
Hiroto Utsunomiya, Yuji Itabashi, Hirotsugu Mihara, Javier Berdejo, Sayuki Kobayashi, Robert J Siegel, Takahiro Shiota
BACKGROUND: Functional tricuspid regurgitation (TR) with a structurally normal tricuspid valve (TV) may occur secondary to chronic atrial fibrillation (AF). However, the clinical and echocardiographic differences according to functional TR subtypes are unclear. Therefore, characterization of functional TR because of chronic AF (AF-TR) remains undetermined. METHODS AND RESULTS: To investigate the prevalence of AF-TR, 437 patients with moderate to severe TR underwent 3-dimensional (3D) transesophageal echocardiography...
January 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28069668/correction-to-a-case-of-rheumatic-fibrinous-pericarditis
#9
(no author information available yet)
No abstract text is available yet for this article.
January 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28028014/cardiovascular-magnetic-resonance-guided-electrophysiological-interventions-radiofrequency-ablation-of-typical-atrial-flutter
#10
Ingo Paetsch, Cosima Jahnke, Sebastian Hilbert, Sascha Krueger, Steffen Weiss, Jouke Smink, Bernhard Schnackenburg, Tom Lloyd, Gerhard Hindricks, Philipp Sommer
No abstract text is available yet for this article.
January 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28003223/ventricular-arrhythmias-and-reduced-echocardiographic-inferior-wall-strain-is-regional-function-an-important-risk-marker
#11
EDITORIAL
John Gorcsan, Kristina H Haugaa
No abstract text is available yet for this article.
January 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28003222/normal-reference-values-and-z-scores-of-the-pulmonary-artery-acceleration-time-in-children-and-its-importance-for-the-assessment-of-pulmonary-hypertension
#12
Martin Koestenberger, Gernot Grangl, Alexander Avian, Andreas Gamillscheg, Marlene Grillitsch, Gerhard Cvirn, Ante Burmas, Georg Hansmann
BACKGROUND: Pulsed-wave Doppler determination of the pulmonary artery acceleration time (PAAT) as a surrogate for pulmonary artery pressure was found to be of clinical value for assessment of pulmonary hypertension (PH) with studies to date exclusively performed in adults. This study aims to provide representative, normal reference values for PAAT in children of all ages. Moreover, we validated abnormal PAAT values in 54 children with PH. METHODS AND RESULTS: We conducted a prospective echocardiographic study in 756 healthy children (aged 1 day to 18 years) and in 54 children with PH...
January 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28003221/regional-longitudinal-deformation-improves-prediction-of-ventricular-tachyarrhythmias-in-patients-with-heart-failure-with-reduced-ejection-fraction-a-madit-crt-substudy-multicenter-automatic-defibrillator-implantation-trial-cardiac-resynchronization-therapy
#13
Tor Biering-Sørensen, Dorit Knappe, Anne-Catherine Pouleur, Brian Claggett, Paul J Wang, Arthur J Moss, Scott D Solomon, Valentina Kutyifa
BACKGROUND: Left ventricular dysfunction is a known predictor of ventricular arrhythmias. We hypothesized that measures of regional longitudinal deformation by speckle-tracking echocardiography predict ventricular tachyarrhythmias and provide incremental prognostic information over clinical and conventional echocardiographic characteristics. METHODS AND RESULTS: We studied 1064 patients enrolled in the MADIT-CRT trial (Multicenter Automatic Defibrillator Implantation Trial-Cardiac Resynchronization Therapy) with speckle-tracking data available...
January 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27974409/heart-failure-with-preserved-ejection-fraction-have-we-finally-found-the-perfect-noninvasive-biomarker
#14
EDITORIAL
Amit R Patel, John A Blair
No abstract text is available yet for this article.
December 2016: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27974408/interstitial-fibrosis-functional-status-and-outcomes-in-heart-failure-with-preserved-ejection-fraction-insights-from-a-prospective-cardiac-magnetic-resonance-imaging-study
#15
Franz Duca, Andreas A Kammerlander, Caroline Zotter-Tufaro, Stefan Aschauer, Marianne L Schwaiger, Beatrice A Marzluf, Diana Bonderman, Julia Mascherbauer
BACKGROUND: Myocardial extracellular volume (ECV) accumulation is one of the key pathophysiologic features of heart failure with preserved ejection fraction (HFpEF). Our aims were to (1) measure ECV by cardiac magnetic resonance T1 mapping using the modified Look-Locker inversion recovery (MOLLI) sequence, (2) validate MOLLI-ECV against histology, and (3) investigate the relationship between MOLLI-ECV and prognosis in HFpEF. METHODS AND RESULTS: One-hundred seventeen consecutive HFpEF patients underwent cardiac magnetic resonance imaging, coronary angiography, and invasive hemodynamic assessments at baseline...
December 2016: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27974407/state-of-the-art-review-of-echocardiographic-imaging-in-the-evaluation-and-treatment-of-functional-tricuspid-regurgitation
#16
Rebecca T Hahn
Functional or secondary tricuspid regurgitation (TR) is the most common cause of severe TR in the Western world. The presence of functional TR, either isolated or in combination with left heart disease, is associated with unfavorable natural history. Surgical mortality for isolated tricuspid valve interventions remains higher than for any other single valve surgery, and surgical options for repair do not have consistent long-term durability. In addition, as more patients undergo transcatheter left valve interventions, developing transcatheter solutions for functional TR has gained greater momentum...
December 2016: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27956411/large-artery-stiffness-microvascular-function-and-cardiovascular-risk
#17
EDITORIAL
Julio A Chirinos
No abstract text is available yet for this article.
December 2016: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27956410/positron-emission-tomography-assessment-of-left-main-coronary-arterial-inflammation-with-coronary-computed-tomographic-angiography-validation-before-and-after-statin-therapy-more-promise-for-fluorodeoxyglucose-vascular-uptake
#18
EDITORIAL
https://www.readbyqxmd.com/read/27956409/functional-assessment-of-coronary-artery-disease-using-whole-heart-dynamic-computed-tomographic-perfusion
#19
Logan Hubbard, Benjamin Ziemer, Jerry Lipinski, Bahman Sadeghi, Hanna Javan, Elliott M Groves, Shant Malkasian, Sabee Molloi
BACKGROUND: Computed tomographic (CT) angiography is an important tool for the evaluation of coronary artery disease but often correlates poorly with myocardial ischemia. Current dynamic CT perfusion techniques can assess ischemia but have limited accuracy and deliver high radiation dose. Therefore, an accurate, low-dose, dynamic CT perfusion technique is needed. METHODS AND RESULTS: A total of 20 contrast-enhanced CT volume scans were acquired in 5 swine (40±10 kg) to generate CT angiography and perfusion images...
December 2016: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27956408/microvascular-function-contributes-to-the-relation-between-aortic-stiffness-and-cardiovascular-events-the-framingham-heart-study
#20
Leroy L Cooper, Joseph N Palmisano, Emelia J Benjamin, Martin G Larson, Ramachandran S Vasan, Gary F Mitchell, Naomi M Hamburg
BACKGROUND: Arterial dysfunction contributes to cardiovascular disease (CVD) progression and clinical events. Inter-relations of aortic stiffness and vasodilator function with incident CVD remain incompletely studied. METHODS AND RESULTS: We used proportional hazards models to relate individual measures of vascular function to incident CVD in 4547 participants (mean age, 51±11 years; 54% women) in 2 generations of Framingham Heart Study participants. During follow-up (0...
December 2016: Circulation. Cardiovascular Imaging
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