Zobrazeno 1 - 10
of 417
pro vyhledávání: '"David N. Firmin"'
Autor:
Andrew D. Scott, Sonia Nielles-Vallespin, Pedro F. Ferreira, Zohya Khalique, Peter D. Gatehouse, Philip Kilner, Dudley J. Pennell, David N. Firmin
Publikováno v:
Journal of Cardiovascular Magnetic Resonance, Vol 20, Iss 1, Pp 1-15 (2018)
Abstract Background Stimulated-echo (STEAM) and, more recently, motion-compensated spin-echo (M2-SE) techniques have been used for in-vivo diffusion tensor cardiovascular magnetic resonance (DT-CMR) assessment of cardiac microstructure. The two techn
Externí odkaz:
https://doaj.org/article/5c6c39ccaec043d99e19d1e773ec7708
Publikováno v:
IEEE Transactions on Medical Imaging. 41:420-433
Semi-supervised learning provides great significance in left atrium (LA) segmentation model learning with insufficient labelled data. Generalising semi supervised learning to cross-domain data is of high importance to further improve model robustness
Autor:
Pedro F. Ferreira, Arjun Banerjee, Andrew D. Scott, Zohya Khalique, Guang Yang, Ramyah Rajakulasingam, Maria Dwornik, Ranil De Silva, Dudley J. Pennell, David N. Firmin, Sonia Nielles‐Vallespin
Publikováno v:
Journal of magnetic resonance imaging : JMRI. 56(6)
In vivo cardiac diffusion tensor imaging (cDTI) characterizes myocardial microstructure. Despite its potential clinical impact, considerable technical challenges exist due to the inherent low signal-to-noise ratio.To reduce scan time toward one breat
Autor:
Pedro F. Ferreira, Sonia Nielles-Vallespin, Zohya Khalique, David N. Firmin, Andrew D Scott, Dudley J. Pennell
Publikováno v:
JACC: Cardiovascular Imaging. 13:1235-1255
Highlights •DT-CMR is a unique technique for noninvasive assessment of myocardial microstructure. •DT-CMR has identified novel cardiomyocyte and sheetlet abnormalities in cardiac disease in vivo. •DT-CMR has the potential to aid clinical diagno
Autor:
Guang Yang, Sonia Nielles-Vallespin, David N. Firmin, Dudley J. Pennell, Zohya Khalique, Raquel R. Martin, Andrew D Scott, Pedro F. Ferreira
Publikováno v:
Magnetic Resonance in Medicine. 84:2801-2814
Purpose In this work we develop and validate a fully automated postprocessing framework for in vivo diffusion tensor cardiac magnetic resonance (DT‐CMR) data powered by deep learning. Methods A U‐Net based convolutional neural network was develop
Autor:
Andrew D. Scott, Tim Jackson, Zohya Khalique, Margarita Gorodezky, Ben Pardoe, Lale Begum, V. Domenico Bruno, Rasheda A. Chowdhury, Pedro F. Ferreira, Sonia Nielles‐Vallespin, Malte Roehl, Karen P. McCarthy, Padmini Sarathchandra, Jan N. Rose, Denis J. Doorly, Dudley J. Pennell, Raimondo Ascione, Ranil de Silva, David N. Firmin
Publikováno v:
Scott, A D, Bruno, V D, Doorly, D J, Pennell, D J, Ascione, R, de Silva, R, Firmin, D N, Rose, J N, Sarathchandra, P, McCarthy, K P, Roehl, M, Nialles-Vallespin, S, Ferreira, P F, Chowdhury, R A, Begum, L, Pardoe, B, Gorodezky, M, Khalique, Z & Jackson, T 2022, ' Development of a cardiovascular magnetic resonance-compatible large animal isolated heart model for direct comparison of beating and arrested hearts ', NMR in Biomedicine, vol. 35, no. 7, e4692 . https://doi.org/10.1002/nbm.4692
BackgroundCardiac motion results in image artefacts and quantification errors in many cardiovascular magnetic resonance (CMR) techniques, including microstructural assessment using diffusion tensor cardiovascular magnetic resonance (DT-CMR). Here we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b2fad90dac3c088937f4cd74225ece79
https://research-information.bris.ac.uk/ws/files/321466446/Full_text_PDF_final_published_version_.pdf
https://research-information.bris.ac.uk/ws/files/321466446/Full_text_PDF_final_published_version_.pdf
Autor:
Laura-Ann McGill, Andrew D Scott, Pedro F Ferreira, Sonia Nielles-Vallespin, Tevfik Ismail, Philip J Kilner, Peter D Gatehouse, Ranil de Silva, Sanjay K Prasad, Archontis Giannakidis, David N Firmin, Dudley J Pennell
Publikováno v:
PLoS ONE, Vol 10, Iss 7, p e0132360 (2015)
Cardiac diffusion tensor imaging (cDTI) by cardiovascular magnetic resonance has the potential to assess microstructural changes through measures of fractional anisotropy (FA) and mean diffusivity (MD). However, normal variation in regional and trans
Externí odkaz:
https://doaj.org/article/cbeb57bd436c4fb9af70278dd73d9aca
Publikováno v:
Computerized medical imaging and graphics : the official journal of the Computerized Medical Imaging Society. 90
Autor:
Sonia Nielles-Vallespin, David N. Firmin, Andrew D Scott, Pedro F. Ferreira, Zohya Khalique, Dudley J. Pennell
Publikováno v:
Journal of Magnetic Resonance Imaging. 52:348-368
The 3D microarchitecture of the cardiac muscle underlies the mechanical and electrical properties of the heart. Cardiomyocytes are arranged helically through the depth of the wall, and their shortening leads to macroscopic torsion, twist, and shorten
Autor:
Sanjay K Prasad, Li-Yueh Hsu, Natasha Davendralingam, Peter D. Gatehouse, Carla Goncalves, Kaushiga Krishnathasan, Andrew E. Arai, Ankur Gulati, Tevfik F Ismail, Dudley J. Pennell, David N. Firmin, Daniel A. Jones, Ravi Assomull, Aamir Ali, Andrew Jabbour, Ricardo Wage, Anthony Mathur, Nizar Ismail, Pedro F. Ferreira, Brian P Halliday, Simon Newsome
Publikováno v:
JACC: Cardiovascular Imaging. 12:1699-1708
Objectives: This study sought to quantify myocardial blood flow (MBF) and myocardial perfusion reserve (MPR) in dilated cardiomyopathy (DCM) and examine the relationship between myocardial ...