2018
DOI: 10.1016/j.neuroimage.2017.12.017
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Investigation of the pulsatility of cerebrospinal fluid using cardiac-gated Intravoxel Incoherent Motion imaging

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Cited by 16 publications
(21 citation statements)
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“…As expected, the lowest mean diffusivity was calculated when using the biexponential fit. the diffusion-encoding direction, with a more than two-fold higher velocity in the anteroposterior direction than in craniocaudal and lateral direction (7). These results may explain the dependency of the MD value over the ventricle from the method used for the computation of the tensor's elements.…”
Section: Discussionmentioning
confidence: 91%
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“…As expected, the lowest mean diffusivity was calculated when using the biexponential fit. the diffusion-encoding direction, with a more than two-fold higher velocity in the anteroposterior direction than in craniocaudal and lateral direction (7). These results may explain the dependency of the MD value over the ventricle from the method used for the computation of the tensor's elements.…”
Section: Discussionmentioning
confidence: 91%
“…Incoherent intravoxel fluid motion affects the evaluation of the diffusion properties in the static tissue and liquor (6,7,14). In this paper, we evaluated the potential detrimental effect of those movements on the evaluation of the diffusion tensor metric by comparing common approaches for DTI computation (such as two b-value based diffusion coefficient estimation, and monoexponential fit of For both, the MD and the FA, we found a dependency from the processing model.…”
Section: Discussionmentioning
confidence: 99%
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“…10 However, recent studies have demonstrated that the fast diffusion component is anisotropic in some tissue types (such as the kidneys 18 and the cerebral gray matter 19 ), and that other sources of fluid movement other than blood perfusion also mimic a pseudo-diffusion regime. 18,20 Discarding the contribution of those fast pseudo-diffusion compartments in the DW signal of the abdominal organs may lead to local bias in the quantification of the diffusion tensor metrics. Moreover, the quantification of mesoscopic fluid movements in terms of pseudo-diffusion components may allow the monitoring of those movements, which could have a clinical relevance.…”
Section: Introductionmentioning
confidence: 99%
“…The conventional IVIM model assumes an isotropic contribution of the fast‐diffusion compartments, and attributes the fast‐diffusion regime to the effect of blood perfusion . However, recent studies have demonstrated that the fast diffusion component is anisotropic in some tissue types (such as the kidneys and the cerebral gray matter), and that other sources of fluid movement other than blood perfusion also mimic a pseudo‐diffusion regime . Discarding the contribution of those fast pseudo‐diffusion compartments in the DW signal of the abdominal organs may lead to local bias in the quantification of the diffusion tensor metrics.…”
Section: Introductionmentioning
confidence: 99%