J
Jennifer Keegan
Researcher at National Institutes of Health
Publications - 162
Citations - 6740
Jennifer Keegan is an academic researcher from National Institutes of Health. The author has contributed to research in topics: Coronary arteries & Heart failure. The author has an hindex of 40, co-authored 160 publications receiving 5865 citations. Previous affiliations of Jennifer Keegan include Imperial College London.
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The Use of Biofeedback with MCLAWS to Guide Respiration and Provide Inspiratory and Expiratory Images from a Single Navigator-Gated 3D Coronary MRA Acquisition
TL;DR: The aim of this work is to combine respiratory biofeedback with mCLAWS in order to regularise the breathing pattern and to exploit the ability of the technique to generate end-expiratory and end-inspiratory images from a single acquisition.
Posted Content
Three-Dimensional Embedded Attentive RNN (3D-EAR) Segmentor for Left Ventricle Delineation from Myocardial Velocity Mapping
Mengmeng Kuang,Yinzhe Wu,Diego Alonso-Álvarez,David N. Firmin,Jennifer Keegan,Peter D. Gatehouse,Guang Yang +6 more
TL;DR: In this article, a 3D-UNet backbone architecture with embedded multichannel attention mechanism and LSTM based recurrent neural networks (RNN) was proposed for the MVM-CMR dataset.
Proceedings ArticleDOI
D Perfusion abnormalities in hypertrophic cardiomyopathy: mechanisms and prognostic importance
Claire E. Raphael,Robert Cooper,Frances M. Mitchell,Alphonsus C. Liew,Simon Newsome,Rory O'Hanlon,Kim H. Parker,Vassilis Vassiliou,Dudley J. Pennell,Jennifer Keegan,Michael P. Frenneaux,Rod Stables,Carlo Di Mario,Sanjay K Prasad +13 more
TL;DR: While replacement fibrosis was a likely mechanism of progression to heart failure, LAVi as a more global measure of ventricular dysfunction was the strongest prognostic marker in HCM.
Journal ArticleDOI
The utility of magnetic resonance imaging in a trial to assess the effect of renal denervation in heart failure with preserved ejection fraction
Ricardo Wage,Hitesh Patel,Gillian Smith,Jennifer Keegan,Peter D. Gatehouse,Vassilis Vassiliou,Ee Ling Heng,Carl Hayward,Stuart D. Rosen,Alexander R. Lyon,Raad H. Mohiaddin,Sanjay K Prasad,Dudley J. Pennell,Carlo Di Mario +13 more
TL;DR: This phase II mechanistic study is primarily investigating the effect of RD on patient symptoms, cardio-pulmonary exercise function, B-type natriuretic peptide levels, left ventricular filling pressures,left ventricular mass and left atrial volume, and macrovascular function using aorta imaging to calculate aortA distensibility, pulse wave velocity and aortic flow.
Journal ArticleDOI
Improved 3D late gadolinium enhancement (LGE) imaging with dynamic-TI in patients with persistent atrial fibrillation
Jennifer Keegan,Peter D. Gatehouse,Shouvik Haldar,Ricardo Wage,Sonya V. Babu-Narayan,David N. Firmin +5 more
TL;DR: A dynamic inversion recovery (dynamic-TI) 3D LGE sequence which minimises variations in the longitudinal magnetisation of myocardium throughout the acquisition is developed and performed to assess its efficacy in 17 patients in persistent AF.