Characterization of white matter fiber bundles withT2*relaxometry and diffusion tensor imaging

2009 ◽  
Vol 61 (5) ◽  
pp. 1066-1072 ◽  
Author(s):  
Andrea Cherubini ◽  
Patrice Péran ◽  
Gisela Elisabeth Hagberg ◽  
Ambra Erika Varsi ◽  
Giacomo Luccichenti ◽  
...  
Keyword(s):  
Diffusion Tensor Imaging ◽  
White Matter ◽  
Diffusion Tensor ◽  
Fiber Bundles ◽  
And Diffusion

scholarly journals Characterization of white matter alterations in phenylketonuria by magnetic resonance relaxometry and diffusion tensor imaging

2007 ◽  
Vol 58 (6) ◽  
pp. 1145-1156 ◽  
Author(s):  
Peter Vermathen ◽  
Laure Robert-Tissot ◽  
Joachim Pietz ◽  
Thomas Lutz ◽  
Chris Boesch ◽  
...  
Keyword(s):  
Diffusion Tensor Imaging ◽  
White Matter ◽  
Magnetic Resonance ◽  
Diffusion Tensor ◽  
And Diffusion

scholarly journals White matter and schizophrenia: A meta-analysis of voxel-based morphometry and diffusion tensor imaging studies

2017 ◽  
Vol 270 ◽  
pp. 8-21 ◽  
Author(s):  
Enrico Vitolo ◽  
Mona Karina Tatu ◽  
Claudia Pignolo ◽  
Franco Cauda ◽  
Tommaso Costa ◽  
...  
Keyword(s):  
Diffusion Tensor Imaging ◽  
White Matter ◽  
Diffusion Tensor ◽  
Meta Analysis ◽  
Voxel Based Morphometry ◽  
Imaging Studies ◽  
And Diffusion

scholarly journals Brain Substrates of Time-Based Prospective Memory Decline in Aging: A Voxel-Based Morphometry and Diffusion Tensor Imaging Study

2020 ◽  
Vol 31 (1) ◽  
pp. 396-409
Author(s):  
Alexandrine Morand ◽  
Shailendra Segobin ◽  
Grégory Lecouvey ◽  
Julie Gonneaud ◽  
Francis Eustache ◽  
...  
Keyword(s):  
Diffusion Tensor Imaging ◽  
White Matter ◽  
Prospective Memory ◽  
Gray Matter ◽  
Diffusion Tensor ◽  
Imaging Study ◽  
Age Related ◽  
Young Subjects ◽  
Anterior Prefrontal Cortex ◽  
And Diffusion

Abstract Time-based prospective memory (TBPM) allows us to remember to perform intended actions at a specific time in the future. TBPM is sensitive to the effects of age, but the neural substrates of this decline are still poorly understood. The aim of the present study was thus to better characterize the brain substrates of the age-related decline in TBPM, focusing on macrostructural gray matter and microstructural white matter integrity. We administered a TBPM task to 22 healthy young (26 ± 5.2 years) and 23 older (63 ± 5.9 years) participants, who also underwent volumetric magnetic resonance imaging and diffusion tensor imaging scans. Neuroimaging analyses revealed lower gray matter volumes in several brain areas in older participants, but these did not correlate with TBPM performance. By contrast, an age-related decline in fractional anisotropy in several white-matter tracts connecting frontal and occipital regions did correlate with TBPM performance, whereas there was no significant correlation in healthy young subjects. According to the literature, these tracts are connected to the anterior prefrontal cortex and the thalamus, 2 structures involved in TBPM. These results confirm the view that a disconnection process occurs in aging and contributes to cognitive decline.

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