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Paravalvular leakage in transcatheter mitral valve replacement
Transcatheter mitral valve replacement (TMVR) has emerged as a promising technique for the treatment of these patients with severe mitral valve disease and high or prohibitive surgical risk. Early experience with TMVR has shown...
Fractional Flow Reserve Derived from CT
Fractional flow reserve derived from CT is a rapidly developing technique, with an increasing burden of literature supporting its potential role in the workup of patients suspected of having coronary artery disease.
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...
Opportunities and challenges of implementing computed tomography fractional flow reserve into clinical practice.
Muhummad Sohaib Nazir, Tarun K Mittal, Jonathan Weir-McCall, Koen Nieman, Keith Channon, Edward D Nicol
Sep 28, 2020
CT-derived fractional flow reserve (CT-FFR) uses computational fluid dynamics to derive non-invasive FFR to determine the haemodynamic significance of coronary artery lesions. Studies have demonstrated good diagnostic accuracy...
advanced cardiac imaging cardiac computer tomographic (CT) imaging chronic coronary disease Coronary Artery Disease Clinical Decision-Making Computed Tomography Angiography Coronary Angiography Coronary Artery Disease Coronary Vessels Fractional Flow Reserve Myocardial Humans hydrodynamics Models Cardiovascular Predictive Value of Tests Prognosis Radiographic Image Interpretation Computer-Assisted Reproducibility of Results Severity of Illness Index
Effects of contrast administration on cardiac MRI volumetric, flow and pulse wave velocity quantification using manual and software-based analysis.
Amir Fathi, Jonathan R Weir-McCall, Allan D Struthers, Brian J Lipworth, Graeme Houston
Oct 07, 2019
OBJECTIVE: The aim of the current study was to determine the effects of gadolinium contrast agent on right (RV) and left ventricular (LV) volumetric, aortic flow and pulse wave velocity (PWV) quantification using manual...
Pulmonary arterial stiffening in COPD and its implications for right ventricular remodelling.
Jonathan R Weir-McCall, Patrick Sk Liu-Shiu-Cheong, Allan D Struthers, Brian J Lipworth, J Graeme Houston
Oct 03, 2019
BACKGROUND: Pulmonary pulse wave velocity (PWV) allows the non-invasive measurement of pulmonary arterial stiffening, but has not previously been assessed in COPD. The aim of the current study was to assess PWV in COPD and its...
Heart Ventricles Magnetic Resonance Imaging Pulmonary arteries Pulmonary Disease Chronic Obstructive Pulse-wave analysis Aged Female Heart Ventricles Humans Magnetic Resonance Imaging Male Middle Aged Pulmonary Artery Pulmonary Disease Chronic Obstructive Pulse Wave Analysis Respiratory Function Tests Ventricular Remodeling
Disconnection of pulmonary and systemic arterial stiffness in COPD.
Jonathan R Weir-McCall, Patrick Sk Liu-Shiu-Cheong, Allan D Struthers, Brian J Lipworth, J Graeme Houston
Sep 30, 2019
BACKGROUND: Both pulmonary arterial stiffening and systemic arterial stiffening have been described in COPD. The aim of the current study was to assess pulse wave velocity (PWV) within these two arterial beds to determine...
COPD arterial compliance Cardiovascular pulmonary vascular Ventricular Function Adult Aged Aged 80 and over Case-Control Studies Forced Expiratory Volume Germany Heart Humans Magnetic Resonance Imaging Male Middle Aged Organ Size Pulmonary Disease Chronic Obstructive Pulse Wave Analysis Spirometry Vascular Stiffness
Allopurinol in Patients with Pulmonary Hypertension Associated with Chronic Lung Disease.
Patrick Sk Liu-Shiu-Cheong, Brian J Lipworth, Jonathan R Weir-McCall, J Graeme Houston, Allan D Struthers
Oct 05, 2020
BACKGROUND: Oxidative stress (OS) has been implicated in the development of pulmonary hypertension (PH) and ventricular hypertrophy. Xanthine oxidase is a well-recognised source of reactive oxygen species, which lead to OS. The...
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...
CT in planning transcatheter aortic valve implantation procedures and risk assessment.
For surgical aortic valve replacement, the Society of Thoracic Surgeons score (STSS) is the reference standard for the prediction of operative risk. In transcatheter aortic valve implantation (TAVI) though, where the procedure...
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
Research priorities in cardiovascular imaging
Guo Liang Yong, Jonathan Weir-McCall, Michael Wilson, Giles H Roditi, Russell Bull, Michelle Claire Williams, Matthias Schmitt
Oct 14, 2020
Aim: A modified Delphi approach was used to develop consensus opinion among British Society for Cardiac Imaging/British Society of Cardiac CT (BSCI/BSCCT) members in order to prioritise research questions in cardiovascular...
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
Epicardial adipose tissue is related to arterial stiffness and inflammation in patients with cardiovascular disease and type 2 diabetes.
Shaween Al-Talabany, Ify Mordi, J Graeme Houston, Helen M Colhoun, Jonathan R Weir-McCall, Shona Z Matthew, Helen C Looker, Daniel Levin, Jill JF Belch, Fiona Dove, Faisel Khan, Chim C Lang
Sep 30, 2019
BACKGROUND: Epicardial adipose tissue (EAT) is an emerging cardio-metabolic risk factor and has been shown to correlate with adverse cardiovascular (CV) outcome; however the underlying pathophysiology of this link is not well...
arterial stiffness Cardiovascular magnetic resonance Epicardial adipose tissue Left ventricular mass pulse wave velocity type 2 diabetes mellitus Adipose Tissue Adiposity Aged Cardiovascular Diseases Case-Control Studies Diabetes mellitus Type 2 Female Humans Inflammation Magnetic Resonance Imaging Cine Male Middle Aged Pericardium Pulse Wave Analysis Risk Factors Scotland Vascular Stiffness
Research priorities in cardiovascular imaging.
Guo Liang Yong, Jonathan Weir-McCall, Michael Wilson, Giles H Roditi, Russell Bull, Michelle Claire Williams, Matthias Schmitt
Nov 09, 2020
AIM: A modified Delphi approach was used to develop consensus opinion among British Society for Cardiac Imaging/British Society of Cardiac CT (BSCI/BSCCT) members in order to prioritise research questions in 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
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...
Radiologist opinions regarding reporting incidental coronary and cardiac calcification on thoracic CT.
Michelle C Williams, Jonathan Weir-McCall, Alastair J Moss, Matthias Schmitt, James Stirrup, Ben Holloway, Deepa Gopalan, Aparna Deshpande, Gareth Morgan Hughes, Bobby Agrawal, Edward Nicol, Giles Roditi, James Shambrook, Russell Bull
Oct 15, 2022
OBJECTIVES: Coronary and cardiac calcification are frequent incidental findings on non-gated thoracic computed tomography (CT). However, radiologist opinions and practices regarding the reporting of incidental calcification are...
Highlights of the 15th annual scientific meeting of the Society of Cardiovascular Computed Tomography.
Jonathan R Weir-McCall, Kelley Branch, Maros Ferencik, Ron Blankstein, Andrew D Choi, Brian B Ghoshhajra, Kavitha Chinnaiyan, Purvi Parwani, Edward Nicol, Koen Nieman
Oct 23, 2020
The 15th Society of Cardiovascular Computed Tomography (SCCT) annual scientific meeting (ASM) welcomed 770 digital attendees from 44 countries, over 2 days, with a program that included 30 sessions across three simultaneously...
Coronary Artery Plaque Characteristics Associated With Adverse Outcomes in the SCOT-HEART Study.
Michelle C Williams, Alastair J Moss, Marc Dweck, Philip D Adamson, Shirjel Alam, Amanda Hunter, Anoop SV Shah, Tania Pawade, Jonathan R Weir-McCall, Giles Roditi, Edwin JR van Beek, David E Newby, Edward D Nicol
Feb 11, 2019
BACKGROUND: Unlike most noninvasive imaging modalities, coronary computed tomography angiography can characterize subtypes of atherosclerotic plaque. OBJECTIVES: The purpose of this study was to investigate the prognostic...
Highlights of the fourteenth annual scientific meeting of the Society of Cardiovascular Computed Tomography.
Jonathan R Weir-McCall, Edward Nicol, Suhny Abbara, Kelley Branch, Andrew D Choi, Brian B Ghoshhajra, Jonathon Leipsic, Koen Nieman, Leslee J Shaw, Ron Blankstein
Sep 28, 2020
The 14th Annual Scientific Meeting of the SCCT, held from July 11 to July 14 in Baltimore, MA, was attended by 830 attendees from 31 countries, with a program that included 45 sessions, and 26 exhibitors. This article summarizes...
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
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