Výsledky vyhledávání - "Alison M. Fletcher"

The impact of atrial fibrillation and stroke risk factors on left atrial blood flow characteristics

Autor: Barbara Casadei, Alison M Fletcher, P Manley, V Ferreira, S Neubauer, Guilherme Pessoa-Amorim, Aaron T. Hess, Jemma C. Hopewell, A Stracquadanio, Rohan S. Wijesurendra, A Von Ende, Marco Spartera

Publikováno v: European Heart Journal Cardiovascular Imaging

Aims Altered left atrial (LA) blood flow characteristics account for an increase in cardioembolic stroke risk in atrial fibrillation (AF). Here, we aimed to assess whether exposure to stroke risk factors is sufficient to alter LA blood flow even in t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ef5699469009baed671bc2d8da6b7bc
https://pubmed.ncbi.nlm.nih.gov/34687541

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Left atrial 4D flow cardiovascular magnetic resonance: a reproducibility study in sinus rhythm and atrial fibrillation

Autor: Vanessa M Ferreira, Peter Manley, Guilherme Pessoa-Amorim, Aaron T. Hess, Alison M Fletcher, Stefan Neubauer, Barbara Casadei, Antonio Stracquadanio, Adam Von Ende, Rohan S. Wijesurendra, Marco Spartera

Publikováno v: Journal of Cardiovascular Magnetic Resonance, Vol 23, Iss 1, Pp 1-11 (2021)
Journal of Cardiovascular Magnetic Resonance

Background Four-dimensional (4D) flow cardiovascular magnetic resonance (CMR) allows sophisticated quantification of left atrial (LA) blood flow, and could yield novel biomarkers of propensity for intra-cardiac thrombus formation and embolic stroke.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8933a0884de922afb1655e9942d046b
https://doi.org/10.1186/s12968-021-00729-0

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Scanning MRI condtional implantable devices

Autor: Michelle Walkden, James Shambrook, Charles Peebles, Stephen Harden, Alison M Fletcher

Publikováno v: Journal of Cardiovascular Magnetic Resonance

Background New developments and expanding indications have lead to a significant increase in the number of pacemakers and loop recorders being implanted. Alongside this cardiac magnetic resonance imaging (CMRI) is increasing being utilised in the ass

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ef33f7f41eb23ebe03b0d1c3bab7c8fe
https://doi.org/10.1186/1532-429x-16-s1-t10

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Coronary arterial 18F-sodium fluoride uptake: a novel marker of plaque biology

Autor: Marc R, Dweck, Marcus W L, Chow, Nikhil V, Joshi, Michelle C, Williams, Charlotte, Jones, Alison M, Fletcher, Hamish, Richardson, Audrey, White, Graham, McKillop, Edwin J R, van Beek, Nicholas A, Boon, James H F, Rudd, David E, Newby

Publikováno v: Journal of the American College of Cardiology. 59(17)

With combined positron emission tomography and computed tomography (CT), we investigated coronary arterial uptake of 18F-sodium fluoride (18F-NaF) and 18F-fluorodeoxyglucose (18F-FDG) as markers of active plaque calcification and inflammation, respec

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::4bfd16b90c7630752702957662080c03
https://pubmed.ncbi.nlm.nih.gov/23079119

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I-123 MIBG cardiac uptake measurements: limitations of collimator choice and scatter correction in the clinical context

Autor: Alison M. Fletcher, Will Martin, Graham M. McCurrach, Nicholas E.R. Goodfield, D.W. Motherwell, Mark C. Petrie, Stuart M. Cobbe, A.D. Small

Publikováno v: Nuclear medicine communications. 31(7)

OBJECTIVE: Low uptake of metaiodobenzylguanidine (MIBG) in patients with heart failure generally indicates poor prognosis. Our objective was to determine the best method for calculating I-123 MIBG uptake. MIBG uptake as a percentage of the injected d

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc63dd1015ba1b41ced1943e90f01b47
https://pubmed.ncbi.nlm.nih.gov/20224458

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MR imaging assessment of myelination in the very preterm brain

Autor: Serena J, Counsell, Elia F, Maalouf, Alison M, Fletcher, Philip, Duggan, Malcolm, Battin, Helen J, Lewis, Amy H, Herlihy, A David, Edwards, Graeme M, Bydder, Mary A, Rutherford

Publikováno v: AJNR Am J Neuroradiol

BACKGROUND AND PURPOSE: MR imaging was performed in very preterm infants by using an MR imager in the neonatal intensive care unit. The aims of this study were to assess the development of myelination in the preterm brain based on MR imaging findings

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::05ba4a06da3d4727d5e1b6fc311009ca
https://pubmed.ncbi.nlm.nih.gov/12006296

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The effect of gender, piloting and segmental analysis on T1 quantification in normal individuals using MOLLI

Autor: Peter Weale, Stephen Harden, Ausami Abbas, Charles Peebles, Andrew S. Flett, James Shambrook, Alison M Fletcher

Publikováno v: Journal of Cardiovascular Magnetic Resonance

Methods 9 healthy volunteers and 7 patients with no evidence/ history of disease were scanned on a Siemens Avanto 1.5T scanner and a 32 channel coil using the Siemens modified look locker inversion recovery (MOLLI) WIP version 448B (5:3:3 acquisition

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ec9a12bb9e949d1ee2f6b4f217e8bfea
http://europepmc.org/articles/PMC4042506

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An unusual case of hypertrophic cardiomyopathy causing right ventricular outflow tract obstruction

Autor: Charles Peebles, James Shambrook, Stephen Harden, Alison M Fletcher, Michelle Walkden

Publikováno v: Journal of Cardiovascular Magnetic Resonance

Methods Steady-state free precession (SSFP) imaging was performed to assess ventricular function, along with tagging. Black blood T1 and T2 weighted fast spin echo sequences were acquired for tissue characterisation and phase contrast imaging was use

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9357c20b23c177dacb36e5c22aec0adc
http://europepmc.org/articles/PMC4042257

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Magnetic resonance imaging of the brain in a cohort of extremely preterm infants

Autor: Mary A. Rutherford, Elia F. Maalouf, Frances M. Cowan, A. David Edwards, Malcolm Battin, Serena J. Counsell, Philip Duggan, Alison M. Fletcher

Publikováno v: The Journal of pediatrics. 135(3)

To define magnetic resonance imaging (MRI) appearances of the brain in extremely preterm infants between birth and term, a sequential cohort of infants born at a gestational age

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4fe0c706478e3445739350554f9b9357
https://pubmed.ncbi.nlm.nih.gov/10484802

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