Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Adam Maunder"'
Autor:
Ho-Fung Chan, Madhwesha Rao, Nicola De Zanche, Fraser Robb, Guilhem Collier, Martin H. Deppe, Jim M. Wild, Claudio Puddu, Adam Maunder, Xiaojun Xu
Publikováno v:
Magnetic Resonance in Medicine. 86:3373-3381
Purpose This study describes the development and testing of an asymmetrical xenon-129 (129Xe) birdcage radiofrequency (RF) coil for 129Xe lung ventilation imaging at 1.5 Tesla, which allows proton (1H) system body coil transmit–receive functionalit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7949bd62baad077439f14d53ff04188
https://doi.org/10.1002/mrm.28915
https://doi.org/10.1002/mrm.28915
Autor:
Oliver Rodgers, Jim M. Wild, Ho-Fung Chan, Graham Norquay, Adam Maunder, Paul Hughes, Guillhem Collier, Madhwesha Rao, Peter E. Thelwall, Fraser Robb
Publikováno v:
Magnetic Resonance in Medicine. 85:1561-1570
PURPOSE To measure the transverse relaxation time ( T2∗ ) and apparent diffusion coefficient (ADC) of 19 F-C3 F8 gas in vivo in human lungs at 1.5T and 3T, and to determine the representative distribution of values of these parameters in a cohort o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e24b8de3a992e4cd8064100df4aa8c83
https://doi.org/10.1002/mrm.28511
https://doi.org/10.1002/mrm.28511
Publikováno v:
Magnetic Resonance in Medicine. 84:2262-2277
PURPOSE To firstly improve the attainable image SNR of 19 F and 1 H C3 F8 lung imaging at 1.5 tesla using an 8-element transmit/receive (Tx/Rx) flexible vest array combined with a 6-element Rx-only array, and to secondly evaluate microelectromechanic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::473da4aad010f841cbb9c816395c795f
https://doi.org/10.1002/mrm.28260
https://doi.org/10.1002/mrm.28260
Publikováno v:
2021 International Conference on Electromagnetics in Advanced Applications (ICEAA).
Previously, metamaterials (MTMs) have been employed in MRI to alter and provide localized enhancement of MRI signal acquired using a traditional detector (coil) [1] . However, adding an MTM resonator to an existing coil or array increases complexity
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7300474c7c45609d228e53ca4e6d395
https://doi.org/10.1109/iceaa52647.2021.9539696
https://doi.org/10.1109/iceaa52647.2021.9539696
Autor:
Graham Norquay, Lothar R. Schad, Claudio Puddu, Adam Maunder, Oliver Rodgers, Jorge Chacon-Caldera, Matthew Clemence, Jim M. Wild, Madhwesha Rao
Publikováno v:
Magnetic Resonance in Medicine
Purpose\ud \ud To assess the feasibility of using dissolved hyperpolarized xenon‐129 (129Xe) MRI to study renal physiology in humans at 3 T.\ud \ud \ud \ud Methods\ud \ud Using a flexible transceiver RF coil, dynamic and spatially resolved 129Xe sp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::01ed132f44234611e937020342c9e298
http://europepmc.org/articles/PMC6852523
http://europepmc.org/articles/PMC6852523
Publikováno v:
2020 50th European Microwave Conference (EuMC).
The application of a thin metamaterial (MTM) liner to the RF shield of the magnetic resonance imaging (MRI) system is proposed to improve whole-body imaging compared to conventional "birdcage" body volume coils. The MTM liner facilitates travelling w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e218b707e6e7027ace3935a0ffc5244c
https://doi.org/10.23919/eumc48046.2021.9338226
https://doi.org/10.23919/eumc48046.2021.9338226
Autor:
Adam, Maunder, Ho-Fung, Chan, Paul J C, Hughes, Guillhem, Collier, Graham, Norquay, Oliver, Rodgers, Peter, Thelwall, Fraser, Robb, Madhwesha, Rao, Jim M, Wild
Publikováno v:
Magnetic resonance in medicineREFERENCES. 85(3)
To measure the transverse relaxation time (Mapping of ADC at lung inflation levels of functional residual capacity (FRC) and total lung capacity (TLC) was performed with inhaledAt both FRC and TLC, theIn this feasibility study, values of physiologica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::756ed3a172f0220f0b4b70b91f91bdd9
https://pubmed.ncbi.nlm.nih.gov/32926448
https://pubmed.ncbi.nlm.nih.gov/32926448
Publikováno v:
Magnetic Resonance in Medicine
Purpose To evaluate the performance of micro‐electromechanical systems (MEMS) switches against PIN diodes for switching a dual‐tuned RF coil between 19F and 1H resonant frequencies for multi‐nuclear lung imaging. Methods A four‐element fixed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f1fdf779e5cc042f19b53c76c6d3b841
https://doi.org/10.1002/mrm.27156
https://doi.org/10.1002/mrm.27156
Autor:
Fabiano Cezar Domingos, Pedram Mousavi, Parinaz Naseri, Susanna Vital de Campos de Freitas, Rashid Mirzavand, Adam Maunder
Publikováno v:
IEEE Transactions on Industrial Electronics. 64:4027-4036
This paper discusses the implementation of a system that utilizes inductive coupling and single-conductor techniques in order to enable power and data transmission through a metallic structure. The power and data transfer occur simultaneously over th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9acc536124fa3691368d0f02be27e4e
https://doi.org/10.1109/tie.2016.2644602
https://doi.org/10.1109/tie.2016.2644602
Autor:
Adam Maunder, M Neal, Peter E. Thelwall, AJ Simpson, Benjamin Pippard, Rod Lawson, Jim M. Wild
Publikováno v:
‘Under your skin’ – imaging in lung disease.
Introduction 19F-MRI of inhaled perfluoropropane (PFP) is a relatively new approach to ventilation imaging, enabling assessment of regional gas distribution without the requirement for hyperpolarization.1 While quantitative measures of pulmonary vent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::988653c686b91a82a358b54d6cf1e858
https://doi.org/10.1136/thorax-2019-btsabstracts2019.130
https://doi.org/10.1136/thorax-2019-btsabstracts2019.130