Results 21 to 30 of about 3,926,912 (305)

MRI assessment of bone structure and microarchitecture [PDF]

Journal of Magnetic Resonance Imaging, 2017
Osteoporosis is a disease of weak bone and increased fracture risk caused by low bone mass and microarchitectural deterioration of bone tissue. The standard‐of‐care test used to diagnose osteoporosis, dual‐energy x‐ray absorptiometry (DXA) estimation of areal bone mineral density (BMD), has limitations as a tool to identify patients at risk for ...
Gregory, Chang, Sean, Boone, Dimitri, Martel, Chamith S, Rajapakse, Robert S, Hallyburton, Mitch, Valko, Stephen, Honig, Ravinder R, Regatte   +7 more
openaire   +2 more sources

Structural network efficiency is associated with cognitive impairment in small-vessel disease. [PDF]

, 2014
To characterize brain network connectivity impairment in cerebral small-vessel disease (SVD) and its relationship with MRI disease markers and cognitive impairment.METHODS: A cross-sectional design applied graph-based efficiency analysis to deterministic
Lawrence, AJ, A. W. Chung, T. R. Barrick, Chung, AW, Barrick, Thomas R., Lawrence, Andrew J.; id_orcid, A. J. Lawrence, H. S. Markus, Morris, RG, Morris, Robin G., Barrick, TR, Chung, Ai Wern, R. G. Morris, Markus, Hugh S., Markus, HS   +14 more
core   +1 more source

Consensus between pipelines in structural brain networks. [PDF]

, 2014
Structural brain networks may be reconstructed from diffusion MRI tractography data and have great potential to further our understanding of the topological organisation of brain structure in health and disease.
Dayan, M, Fani Deligianni, Clayden, Jonathan, Daga, Pankaj (5302726), Clayden, JD, Jonathan D. Clayden (388576), Parker, CS, Cardoso, M., M Jorge Cardoso, Modat, M, Fani Deligianni (651913), Pankaj Daga (3705391), Clark, CA, Jonathan D Clayden, Michael Dayan, Chris A Clark, Clayden, Jonathan D. (5302705), Cardoso, MJ, Parker, Christopher S. (5302711), Daga, Pankaj, Dayan, Michael, Clark, Chris, Daga, P, Deligianni, Fani (5302729), Clark, Chris A., Modat, Marc (5302723), Chris A. Clark (388579), Parker, Christopher S., Ourselin, Sebastien, Modat, Marc, Pankaj Daga, Michael Dayan (405211), Ourselin, Sebastien (5302708), Clark, Chris A. (5302714), Sebastien Ourselin (300144), Cardoso, M. Jorge (5302720), Christopher S. Parker (651912), Parker, Christopher, Christopher S Parker, Clayden, Jonathan D., M. Jorge Cardoso (390129), Sebastien Ourselin, Ourselin, S, Marc Modat (300140), Deligianni, F, Deligianni, Fani, Cardoso, M. Jorge, Marc Modat, Dayan, Michael (5302717)   +48 more
core   +1 more source

Quantification of cerebellar structures with MRI

Psychiatry Research: Neuroimaging, 1997
Methodological issues have limited neuroimaging studies of cerebellar structures. In this article we describe a method that addresses some of these limitations and phantom studies that examine the validity of the image manipulations. We compared volumes derived from 3D Spoiled Gradient Recalled Acquisition MR images sliced with respect to three ...
A R, Deshmukh, J E, Desmond, E V, Sullivan, B F, Lane, B, Lane, B, Matsumoto, L, Marsh, K O, Lim, A, Pfefferbaum   +8 more
openaire   +2 more sources

A method for improving the performance of gradient systems for diffusion-weighted MRI [PDF]

, 2007
The MR signal is sensitive to diffusion. This effect can be increased by the use of large, balanced bipolar gradients. The gradient systems of MR scanners are calibrated at installation and during regular servicing visits.
Daniel C. Alex, Zoltan Nagy, Ralf Deichmann, Weiskopf, N. ; https://orcid.org/, Alexander, D., Nagy, Z., Nagy, Zoltan, Deichmann, R., Alexander, Daniel C., Weiskopf, Nikolaus, Deichmann, Ralf, Nikolaus Weiskopf   +11 more
core   +1 more source

Subchronic memantine induced concurrent functional disconnectivity and altered ultra-structural tissue integrity in the rodent brain: revealed by multimodal MRI [PDF]

, 2013
Background An effective NMDA antagonist imaging model may find key utility in advancing schizophrenia drug discovery research. We investigated effects of subchronic treatment with the NMDA antagonist memantine by using behavioural observation and ...
Ver Donck, L., Van der Linden, A, Giugliano, M., Sijbers, J., Sijbers, J, Wuyts, K, Sekar, S, Couto, J, Ver Donck, L, Willems, R, Mackie, C., Steckler, T, Couto, J., Van Der Linden, A., Willems, R., Jonckers, Elisabeth, Jonckers, E., Veraart, J, Van Auderkerke, J, Steckler, T., Giugliano, M, Veraart, J., Wuyts, K., Mackie, C, Van Audekerke, J., Dedeurwaerdere, S., Verhoye, M, Verhoye, M., De Deurwaerdere, S, Sekar, S.   +29 more
core   +1 more source

Combined evaluation of FDG-PET and MRI improves detection and differentiation of dementia. [PDF]

, 2011
INTRODUCTION: Various biomarkers have been reported in recent literature regarding imaging abnormalities in different types of dementia. These biomarkers have helped to significantly improve early detection and also differentiation of various dementia ...
Möller, Harald E, Dukart, J., Osama Sabri, Horstmann, A., Sabri, O., Harald E. Möller, Schroeter, Matthias L, Matthias L Schroeter, Barthel, H., Sabri, Osama, Juergen Dukart, Villringer, Arno, Dukart, Juergen, Müller, K. ; https://orcid.org/, Mueller, Karsten, Harald E Möller, Villringer, A. ; https://orcid.org/, Matthias L. Schroeter, Henryk Barthel, Karsten Mueller, Annette Horstmann, Arno Villringer, Barthel, Henryk, Schroeter, M. ; https://orcid.org/, Horstmann, Annette, Möller, H. ; https://orcid.org/   +25 more
core   +2 more sources

MRI Characterization of Non-traumatic Intracerebral Hemorrhage in Young Adults

Frontiers in Neurology, 2020
Background and Purpose: Non-traumatic intracerebral hemorrhage (ICH) in younger population is a relatively rare event but is associated with considerable mortality and poor functional outcome.
Mohamed Elmegiri, Riku-Jaakko Koivunen, Turgut Tatlisumak, Turgut Tatlisumak, Jukka Putaala, Juha Martola   +5 more
doaj   +1 more source

Magnetic resonanse imaging as a prognostic tool in encephalitis in children

Клиническая практика, 2019
We provide the data on the modern use of MRI of different modalities as a prognostic tool in the encephalitis diagnostics in pediatrics. According to the recent scientific knowledge, this implementation is possible, but its efficacy depends on the ...
Natalia V. Marchenko, Vladislav B. Voitenkov, Natalia V. Skripchenko, Olga O. Kurzanceva   +3 more
doaj   +1 more source

Axon radius measurements in vivo from diffusion MRI: A feasibility study [PDF]

, 2007
This paper investigates the feasibility of using diffusion MRI to measure axon-cell dimensions in the white matter of live subjects. A simple geometric model of white-matter tissue provides an expression that relates the axon radius to the diffusion MRI ...
Daniel C. Alexander, Alexander, DC
core   +1 more source