Zobrazeno 1 - 10
of 80
pro vyhledávání: '"R. Marc Lebel"'
Autor:
Timothy J. Allen, Leah C. Henze Bancroft, Orhan Unal, Lloyd D. Estkowski, Ty A. Cashen, Frank Korosec, Roberta M. Strigel, Frederick Kelcz, Amy M. Fowler, Alison Gegios, Janice Thai, R. Marc Lebel, James H. Holmes
Publikováno v:
Tomography, Vol 9, Iss 5, Pp 1949-1964 (2023)
Deep learning (DL) reconstruction techniques to improve MR image quality are becoming commercially available with the hope that they will be applicable to multiple imaging application sites and acquisition protocols. However, before clinical implemen
Externí odkaz:
https://doaj.org/article/7a9fea97b4a84c71a2595b92b2a9fe5b
Autor:
Rebecca J. Williams, Jacinta L. Specht, Erin L. Mazerolle, R. Marc Lebel, M. Ethan MacDonald, G. Bruce Pike
Publikováno v:
Frontiers in Physiology, Vol 14 (2023)
BOLD sensitivity to baseline perfusion and blood volume is a well-acknowledged fMRI confound. Vascular correction techniques based on cerebrovascular reactivity (CVR) might reduce variance due to baseline cerebral blood volume, however this is predic
Externí odkaz:
https://doaj.org/article/7e8b01f621fc46bcb6384e73bf1c8d5b
Autor:
Fanny Munsch, Manuel Taso, Li Zhao, R. Marc Lebel, Arnaud Guidon, John A. Detre, David C. Alsop
Publikováno v:
NeuroImage, Vol 223, Iss , Pp 117371- (2020)
Background: Arterial Spin Labeling (ASL) MRI can provide quantitative images that are sensitive to both time averaged blood flow and its temporal fluctuations. 3D image acquisitions for ASL are desirable because they are more readily compatible with
Externí odkaz:
https://doaj.org/article/95199fd903c944bbb355473a78bffcf8
Publikováno v:
NeuroImage, Vol 204, Iss , Pp 116224- (2020)
Adequate cerebral blood flow (CBF) is essential to proper brain development and function. Detailed characterization of CBF developmental trajectories will lead to better understanding of the development of cognitive, motor, and sensory functions, as
Externí odkaz:
https://doaj.org/article/88f78916648e4902a2b40e3270fe304c
Publikováno v:
NeuroImage: Clinical, Vol 24, Iss , Pp - (2019)
Objective: To construct a clinical diagnostic biomarker using state-of-the-art microstructural MRI in the motor cortex of people with amyotrophic lateral sclerosis (ALS). Methods: Clinical and MRI data were obtained from 21 ALS patients (aged 54 ± 1
Externí odkaz:
https://doaj.org/article/90bcab37d5cc45a888f6997b29127c51
Publikováno v:
PLoS ONE, Vol 15, Iss 8, p e0233244 (2020)
The role of white matter in reading has been established by diffusion tensor imaging (DTI), but DTI cannot identify specific microstructural features driving these relationships. Neurite orientation dispersion and density imaging (NODDI), inhomogeneo
Externí odkaz:
https://doaj.org/article/f68785b6580648c38570e097631acddb
Autor:
Simon Sun, Ek Tsoon Tan, Douglas N. Mintz, Meghan Sahr, Yoshimi Endo, Joseph Nguyen, R. Marc Lebel, John A. Carrino, Darryl B. Sneag
Publikováno v:
European Radiology. 32:6167-6177
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f3711c01c8697286732bb8ac8df21273
https://doi.org/10.1007/s00330-022-08708-4
https://doi.org/10.1007/s00330-022-08708-4
Publikováno v:
Magnetic Resonance in Medicine. 87:1561-1573
PURPOSE To develop a deep-learning model that leverages the spatial and temporal information from dynamic contrast-enhanced magnetic resonance (DCE MR) brain imaging in order to automatically estimate a vascular function (VF) for quantitative pharmac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e28577bc78293d79a8506db4d1576a52
https://doi.org/10.1002/mrm.29054
https://doi.org/10.1002/mrm.29054
Autor:
Brendan J. Bakker, R. Marc Lebel, Ricardo P.J. Budde, Nikki van der Velde, Martin A. Janich, H. Carlijne Hassing, Isabella Kardys, Alexander Hirsch, Piotr A. Wielopolski
Publikováno v:
European Radiology
European radiology, 31(6), 3846-3855. Springer Verlag
European Radiology, 31(6), 3846-3855. Springer-Verlag
European radiology, 31(6), 3846-3855. Springer Verlag
European Radiology, 31(6), 3846-3855. Springer-Verlag
Objectives The aim of this study was to assess the effect of a deep learning (DL)–based reconstruction algorithm on late gadolinium enhancement (LGE) image quality and to evaluate its influence on scar quantification. Methods Sixty patients (46 ±
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0de668684f7c701ac9760af7fd1a1ab1
https://doi.org/10.1007/s00330-020-07461-w
https://doi.org/10.1007/s00330-020-07461-w
Publikováno v:
Magnetic Resonance in Medicine. 86:2234-2249
PURPOSE To develop and evaluate an efficient precontrast T1 mapping technique suitable for quantitative high-resolution whole-brain dynamic contrast-enhanced-magnetic resonance imaging (DCE-MRI). METHODS Variable flip angle (VFA) T1 mapping was consi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9169f7ef4646a17d26d51198bcfb01c8
https://doi.org/10.1002/mrm.28849
https://doi.org/10.1002/mrm.28849