Zobrazeno 1 - 10
of 80
pro vyhledávání: '"Mark, Bydder"'
Autor:
Paul Condron, Daniel M. Cornfeld, Miriam Scadeng, Tracy R. Melzer, Gil Newburn, Mark Bydder, Eryn E. Kwon, Joshua P. McGeown, Geoffrey G. Handsfield, Taylor Emsden, Maryam Tayebi, Samantha J. Holdsworth, Graeme M. Bydder
Publikováno v:
Tomography, Vol 10, Iss 7, Pp 983-1013 (2024)
Ultra-high contrast (UHC) MRI describes forms of MRI in which little or no contrast is seen on conventional MRI images but very high contrast is seen with UHC techniques. One of these techniques uses the divided subtracted inversion recovery (dSIR) s
Externí odkaz:
https://doaj.org/article/4c91cd48264f4e6287ca19b2801c8f85
Autor:
Daniel Cornfeld, Paul Condron, Gil Newburn, Josh McGeown, Miriam Scadeng, Mark Bydder, Mark Griffin, Geoffrey Handsfield, Meeghage Randika Perera, Tracy Melzer, Samantha Holdsworth, Eryn Kwon, Graeme Bydder
Publikováno v:
Bioengineering, Vol 11, Iss 5, p 441 (2024)
Divided and subtracted MRI is a novel imaging processing technique, where the difference of two images is divided by their sum. When the sequence parameters are chosen properly, this results in images with a high T1 or T2 weighting over a small range
Externí odkaz:
https://doaj.org/article/628502e0a3d44c67a78b71f1102eb468
Autor:
Gil Newburn, Paul Condron, Eryn E. Kwon, Joshua P. McGeown, Tracy R. Melzer, Mark Bydder, Mark Griffin, Miriam Scadeng, Leigh Potter, Samantha J. Holdsworth, Daniel M. Cornfeld, Graeme M. Bydder
Publikováno v:
Diagnostics, Vol 14, Iss 4, p 418 (2024)
Background: Delayed Post-Hypoxic Leukoencephalopathy (DPHL), or Grinker’s myelinopathy, is a syndrome in which extensive changes are seen in the white matter of the cerebral hemispheres with MRI weeks or months after a hypoxic episode. T2-weighted
Externí odkaz:
https://doaj.org/article/0ab435d846d54459bc61745869a70e73
Autor:
Mark Bydder, Tanya Chavez, Jessica Lam, Walter Henderson, Nick Pinto, Roxana Chavarria, Alex D. Pham, Rohit Loomba, Jeff Schwimmer, Claude Sirlin, Gavin Hamilton
Publikováno v:
Biophysica, Vol 2, Iss 1, Pp 8-15 (2021)
Chemical shift magnetic resonance imaging (MRI) is commonly used to estimate the amount of fat in tissues, namely the proton density fat fraction (PDFF). In addition to PDFF, the type of fat can be inferred and characterized in terms of the number of
Externí odkaz:
https://doaj.org/article/e12f17d52169465a957ffc6dd4ada98e
Autor:
Mark, Bydder, Fadil, Ali, Andres, Saucedo, Vahid, Ghodrati, Alexei, Samsonov, Massoud, Akhtari, Chencai, Wang, Akifumi, Hagiwara, Jingwen, Yao, Ben, Ellingson
Publikováno v:
Magnetic Resonance Imaging. 94:43-47
The present study describes a model-based approach for correcting off-resonance in the context of double half-echo k-space acquisitions. This technique employs center-out readouts in forward and reverse directions to reduce echo-times but is sensitiv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::abdd32b0b046254c69666f9a2765ef27
https://doi.org/10.1016/j.mri.2022.08.017
https://doi.org/10.1016/j.mri.2022.08.017
Autor:
Ya-Jun, Ma, Dina, Moazamian, Daniel M, Cornfeld, Paul, Condron, Samantha J, Holdsworth, Mark, Bydder, Jiang, Du, Graeme M, Bydder
Publikováno v:
Quantitative Imaging in Medicine and Surgery. 12:4658-4690
This paper updates and extends three previous papers on tissue property filters (TP-filters), Multiplied, Added, Divided and/or Subtracted Inversion Recovery (MASTIR) pulse sequences and synergistic contrast MRI (scMRI). It does this by firstly addin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::32520e4d3ac406a0845f30d4b87f7d54
https://doi.org/10.21037/qims-22-394
https://doi.org/10.21037/qims-22-394
Publikováno v:
Quant Imaging Med Surg
Background Center-out radial sampling of k-space in magnetic resonance imaging employs a different direction for each readout. Off-resonance artifacts (including those produced by chemical shift between water and fat) found with this type of sampling
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f1544eaea0bd998f053e791f3563ad82
https://doi.org/10.21037/qims-21-115
https://doi.org/10.21037/qims-21-115
Autor:
Farzad Fatehi, Emmanuelle Salort-Campana, Arnaud Le Troter, Emilie Lareau-Trudel, Mark Bydder, Alexandre Fouré, Maxime Guye, David Bendahan, Shahram Attarian
Publikováno v:
PLoS ONE, Vol 12, Iss 8, p e0183825 (2017)
Facioscapulohumeral muscular dystrophy (FSHD) is one of the most common hereditary muscular disorders. Currently FSHD has no known effective treatment and detailed data on the natural history are lacking. Determination of the efficacy of a given ther
Externí odkaz:
https://doaj.org/article/045fe43a86c44aeabe2007a208c2c765
Autor:
Mark Bydder, Andrew T. Trout, Takeshi Yokoo, Mark Smith, Houchun H. Hu, Claude B. Sirlin, Timothy J. Colgan, Thomas L. Chenevert, Yunhong Shu, Michael S. Middleton, Jean A. Tkach, Jean H. Brittain, Scott B. Reeder, Suraj D. Serai, Ruvini Navaratna, Ruiyang Zhao, Gavin Hamilton, Mustafa R. Bashir, Diego Hernando, Walter C. Henderson, Dariya I. Malyarenko
Publikováno v:
Magnetic Resonance in Medicine. 86:69-81
Purpose Chemical shift-encoded MRI (CSE-MRI) is well-established to quantify proton density fat fraction (PDFF) as a quantitative biomarker of hepatic steatosis. However, temperature is known to bias PDFF estimation in phantom studies. In this study,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::66370bb6aba31092d3329c46d8d53951
https://doi.org/10.1002/mrm.28669
https://doi.org/10.1002/mrm.28669
Publikováno v:
Magnetic Resonance Imaging. 66:1-8
The study evaluates four physically motivated constraints in the estimation of the proton density fat fraction (PDFF). Least squares approaches were developed for constraining the parameters in PDFF quantification based on the physics of magnetic res
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68326c0d79b69589f1e5921c8379ff2c
https://doi.org/10.1016/j.mri.2019.11.009
https://doi.org/10.1016/j.mri.2019.11.009