Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Madhwesha, Rao"'
Publikováno v:
Magnetic Resonance in Medicine. 89:2217-2226
Autor:
Ho-Fung Chan, Laurie J. Smith, Alberto M. Biancardi, Jody Bray, Helen Marshall, Paul J. C. Hughes, Guilhem J. Collier, Madhwesha Rao, Graham Norquay, Andrew J. Swift, Kylie Hart, Michael Cousins, W. John Watkins, Jim M. Wild, Sailesh Kotecha
Publikováno v:
American Journal of Respiratory and Critical Care Medicine. 207:89-100
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
Autor:
Ho-Fung, Chan, Laurie J, Smith, Alberto M, Biancardi, Jody, Bray, Helen, Marshall, Paul J C, Hughes, Guilhem J, Collier, Madhwesha, Rao, Graham, Norquay, Andrew J, Swift, Kylie, Hart, Michael, Cousins, W John, Watkins, Jim M, Wild, Sailesh, Kotecha
Publikováno v:
American journal of respiratory and critical care medicine. 207(1)
Publikováno v:
Magnetic Resonance in Medicine. 85:2939-2949
Purpose This study develops a tracer kinetic model of xenon uptake in the human brain to determine the transfer rate of inhaled hyperpolarized 129 Xe from cerebral blood to gray matter that accounts for the effects of cerebral physiology, perfusion a
Publikováno v:
Progress in Nuclear Magnetic Resonance Spectroscopy
Graphical abstract
Highlights • Review of in vivo methods and applications of 129Xe magnetic resonance in humans. • Focus on polarisation physics, radiofrequency coil and pulse sequence design. • 129Xe MRS/MRI is sensitive to lung ventilat
Highlights • Review of in vivo methods and applications of 129Xe magnetic resonance in humans. • Focus on polarisation physics, radiofrequency coil and pulse sequence design. • 129Xe MRS/MRI is sensitive to lung ventilat
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
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
Publikováno v:
IEEE Transactions on Medical Imaging. 39:1085-1093
A capacitive impedance metasurface combined with a transceiver coil to improve the radio frequency magnetic field for 1.5T magnetic resonance imaging applications is presented. The novel transceiver provides localized enhancement in magnetic flux den
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