Search
Results: 304
Mitral Valve Imaging with CT
Jonathan R Weir-McCall, Philipp Blanke, Christopher Naoum, Victoria Delgado, Jeroen J Bax, Jonathon Leipsic
Dec 20, 2018
The role of noninvasive imaging to help guide transcatheter aortic valvular interventions is well established and has grown with the advances in the procedure. With the rapid development of new transcatheter mitral valve...
Transcatheter Aortic and Mitral Valve Replacements.
Ryan Wilson, Charis McNabney, Jonathan R Weir-McCall, Stephanie Sellers, Philipp Blanke, Jonathon A Leipsic
Oct 08, 2019
Amid rapid growth in transcatheter valvular interventions computed tomography (CT) has emerged as a pivotal noninvasive imaging resource that can be used throughout many stages of the transcatheter heart valve process, enhancing...
The Future of Cardiovascular Computed Tomography
Edward D Nicol, Bjarne L Norgaard, Philipp Blanke, Amir Ahmadi, Jonathon Weir-McCall, Pal Maurovich Horvat, Kelly Han, Jeroen J Bax, Jonathon Leipsic
Jan 10, 2020
Cardiovascular computed tomography (CCT) has undergone rapid maturation over the last decade and is now of proven clinical utility in the diagnosis and management of coronary artery disease, in guiding structural heart disease...
FFR(CT) TMVR Atherosclerosis cardiac CT Machine Learning Radiomics Computed Tomography Angiography Coronary Angiography Diffusion of Innovation Forecasting Heart Diseases Humans Models Cardiovascular Patient-Specific Modeling Predictive Value of Tests printing Three-Dimensional Prognosis Tomography Scanners X-Ray Computed
Transcatheter Tricuspid Valve-in-Valve Replacement With Subsequent Bioprosthetic Valve Fracture to Optimize Hemodynamic Function.
Mark Hensey, Abdullah R Alenezi, Dale J Murdoch, Janarthanan Sathananthan, Jonathan R Weir-McCall, David Wood, Philipp Blanke, John Webb
Dec 21, 2018
transcatheter valve tricuspid valve Adult Balloon Valvuloplasty Bioprosthesis Cardiac Catheterization Female Heart valve prosthesis Heart Valve Prosthesis Implantation Hemodynamics Humans Prosthesis Design prosthesis failure Recovery of Function Treatment Outcome Tricuspid Valve Tricuspid Valve Insufficiency Tricuspid Valve Stenosis
Computed tomography imaging in the context of transcatheter aortic valve implantation (TAVI) / transcatheter aortic valve replacement (TAVR)
Philipp Blanke, Jonathan R Weir-McCall, Stephan Achenbach, Victoria Delgado, Jörg Hausleiter, Hasan Jilaihawi, Mohamed Marwan, Bjarne L Norgaard, Niccolo Piazza, Paul Schoenhagen, Jonathon A Leipsic
Feb 07, 2019
Since the publication of the firstexpertconsensus document on computed tomography imaging before transcatheter aortic valve implantation (TAVI)/trans- catheter aortic valve replacement (TAVR) by the So- ciety of Cardiovascular...
Annular versus supra-annular sizing for transcatheter aortic valve replacement in bicuspid aortic valve disease.
Jonathan R Weir-McCall, Adrian Attinger-Toller, Philipp Blanke, Gidon Y Perlman, Stephanie L Sellers, David Wood, John G Webb, Jonathon Leipsic
Sep 28, 2020
BACKGROUND: CT measurement of supra-annular area (SA) has been proposed as an alternative to annular area (AA) for sizing of trancatheter valves in biscuspid aortic valves (BAV). This study examines the reproducibility of SA and...
Aortic stenosis Bicuspid aortic valve Computer tomography Tavr Valvular disease Aged Aged 80 and over Aortic Valve aortic valve stenosis Bicuspid Aortic Valve Disease Computed Tomography Angiography Coronary Angiography Echocardiography Female Heart Valve Diseases Heart valve prosthesis Humans Male Middle Aged Multidetector Computed Tomography Predictive Value of Tests Prosthesis Design Retrospective Studies Severity of Illness Index transcatheter aortic valve replacement Treatment Outcome
Effect of a calcium deblooming algorithm on accuracy of coronary computed tomography angiography.
Jonathan R Weir-McCall, Rui Wang, Jaydeep Halankar, Jiang Hsieh, Cameron J Hague, Samuel Rosenblatt, Zhanming Fan, Stephanie L Sellers, Darra T Murphy, Philipp Blanke, Lei Xu, Jonathon A Leipsic
Sep 10, 2019
BACKGROUND: Coronary artery calcification is a significant contributor to reduced accuracy of coronary computed tomographic angiography (CTA) in the assessment of coronary artery disease severity. The aim of the current study is...
Atherosclerosis cardiac Computed tomography Coronary Artery Disease Plaque Aged Algorithms Computed Tomography Angiography Coronary Angiography Coronary Artery Disease Coronary Vessels Female Humans Male Middle Aged Multidetector Computed Tomography Plaque Atherosclerotic Predictive Value of Tests Proof of Concept Study Radiographic Image Interpretation Computer-Assisted Reproducibility of Results Retrospective Studies Severity of Illness Index Vascular Calcification
Hypertrophic Cardiomyopathy (HCM)
Stephanie L Sellers, Tim A Fonte, Rominder Grover, John Mooney, Jonathan Weir-McCall, Karen Pl Lau, Anesh Chavda, Charis McNabney, Amir Ahmadi, Philipp Blanke, Geoffrey W Payne, Darra T Murphy, Kevin Ong, Charles A Taylor, Jonathon A Leipsic
Dec 21, 2018
INTRODUCTION: Angina, myocardial ischemia, and coronary artery physiology in hypertrophic cardiomyopathy (HCM) are poorly understood. However, coronary computed tomography angiography (CCTA) with fractional flow reserve from CT...
Computed Tomography Angiography Coronary remodelling FFR(CT) Hypertrophic cardiomyopathy Ischemia Adult Aged Cardiomyopathy Hypertrophic Computed Tomography Angiography Coronary Angiography Coronary Stenosis Coronary Vessels Female Fractional Flow Reserve Myocardial Humans Male Middle Aged Predictive Value of Tests Retrospective Studies Severity of Illness Index Vascular Remodeling Ventricular Remodeling
Computed Tomography Imaging in the Context of Transcatheter Aortic Valve Implantation (TAVI)/Transcatheter Aortic Valve Replacement (TAVR)
Philipp Blanke, Jonathan R Weir-McCall, Stephan Achenbach, Victoria Delgado, Jörg Hausleiter, Hasan Jilaihawi, Mohamed Marwan, Bjarne L Nørgaard, Niccolo Piazza, Paul Schoenhagen, Jonathon A Leipsic
Jan 08, 2019
Since the publication of the first expert consensus document on computed tomography imaging before transcatheter aortic valve implantation (TAVI)/transcatheter aortic valve replacement (TAVR) by the Society of Cardiovascular...
Reference dimensions of stented surgical aortic bioprostheses for valve size determination.
Malcolm Anastasius, Marcelo Godoy, Jonathan R Weir-McCall, Vinayak Bapat, Janarthanan Sathananthan, Mark Hensey, Stephanie L Sellers, Anson Cheung, Jian Ye, David A Wood, Jonathon Leipsic, John Webb, Philipp Blanke
Feb 13, 2020
Aortic valve-in-valve (aVIV) procedures are advancing the management of failed bioprosthetic surgical heart valves (SHV)1,2. As opposed to transcatheter heart valve (THV) replacement for native aortic stenosis, selection of the...
Gamified Learning to Restore the Forest Landscape in Afghanistan
Philipp Busch
Oct 01, 2021
Implementing digital learning approaches in fragile contexts offers opportunities and challenges at the same time. The article describes an ongoing project by the German development cooperation organization GIZ (Deutsche...
Published by: IGI Global Scientific Publishing
Impact of sublingual nitroglycerin dosage on FFRCT assessment and coronary luminal volume-to-myocardial mass ratio.
Kenneth R Holmes, Tim A Fonte, Jonathan Weir-McCall, Malcolm Anastasius, Philipp Blanke, Geoffrey W Payne, Jen Ellis, Darra T Murphy, Charles Taylor, Jonathon A Leipsic, Stephanie L Sellers
Oct 30, 2019
OBJECTIVES: Fractional flow reserve computed tomography (FFRCT) depends upon nitroglycerin (NTG) inducing maximal hyperemia. However, the impact of NTG dosages on FFRCT analysis including coronary volume-to-mass ratio (V/M) is...
Computed Tomography Angiography Coronary Artery Disease Nitroglycerin Vasodilation Administration Sublingual Computed Tomography Angiography Coronary Angiography Coronary Artery Disease Female Fractional Flow Reserve Myocardial Humans Male Middle Aged Myocardium Nitroglycerin Organ Size Predictive Value of Tests Retrospective Studies Vasodilator Agents
International chemical identifier for reactions (RInChI).
The Reaction InChI (RInChI) extends the idea of the InChI, which provides a unique descriptor of molecular structures, towards reactions. Prototype versions of the RInChI have been available since 2011. The first official...
Creating a Functional Interdependency Map for Supporting the “Act of Improvement” in Business Process Improvement Projects
Business process improvement (BPI) is of high priority for practitioners. But especially the most value-adding phase in a BPI project, namely the “act of improvement”, is insufficiently supported despite the many existing...
Published by: IGI Global Scientific Publishing
Rural electrification, electrification inequality and democratic institutions in sub-Saharan Africa
Philipp Trotter
Oct 01, 2016
While it is commonly believed that democracy influences public service provision, comparably few studies have assessed how recent democratisation in developing countries has impacted tangible public service outcomes for...
Population genetics of mouse lemur vomeronasal receptors
BACKGROUND: A major effort is underway to use population genetic approaches to identify loci involved in adaptation. One issue that has so far received limited attention is whether loci that show a phylogenetic signal of...
Flexible latching
Controlling cognitive systems like domestic robots or intelligent assistive environments requires striking an appropriate balance between responsiveness and persistence. Basic goal arbitration is an essential element of low...
How Much Am I Expected to Pay for My Parents’ Firm? An Institutional Logics Perspective on Family Discounts
Recent evidence suggests that successors do not simply inherit their parents' firm, but have to pay a certain price. Building on institutional logics literature, we explore successors' family discount expectations, defined as...
Rural electrification, electrification inequality and democratic institutions in sub-Saharan Africa
Philipp Trotter
Oct 01, 2016
While it is commonly believed that democracy influences public service provision, comparably few studies have assessed how recent democratisation in developing countries has impacted tangible public service outcomes for...
Quantifying the Interactions in the Aggregation of Thermoresponsive Polymers
|
|< |
< |
1 |