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Brain tissue compartment density estimated using diffusion‐weighted MRI yields tissue parameters consistent with histology

We examined whether quantitative density measures of cerebral tissue consistent with histology can be obtained from diffusion magnetic resonance imaging (MRI). By incorporating prior knowledge of myelin and cell membrane densities, absolute tissue density values were estimated from relative intracel... Full description

Journal Title: Human Brain Mapping September 2015, Vol.36(9), pp.3687-3702
Main Author: Sepehrband, Farshid
Other Authors: Clark, Kristi A. , Ullmann, Jeremy F. P. , Kurniawan, Nyoman D. , Leanage, Gayeshika , Reutens, David C. , Yang, Zhengyi
Format: Electronic Article Electronic Article
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Dti
ID: ISSN: 1065-9471 ; E-ISSN: 1097-0193 ; DOI: 10.1002/hbm.22872
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recordid: wj10.1002/hbm.22872
title: Brain tissue compartment density estimated using diffusion‐weighted MRI yields tissue parameters consistent with histology
format: Article
creator:
  • Sepehrband, Farshid
  • Clark, Kristi A.
  • Ullmann, Jeremy F. P.
  • Kurniawan, Nyoman D.
  • Leanage, Gayeshika
  • Reutens, David C.
  • Yang, Zhengyi
subjects:
  • Diffusion‐Weighted Mri
  • Noddi
  • Dti
  • Tissue Compartment Density
  • Validation
  • Electron Microscopy
ispartof: Human Brain Mapping, September 2015, Vol.36(9), pp.3687-3702
description: We examined whether quantitative density measures of cerebral tissue consistent with histology can be obtained from diffusion magnetic resonance imaging (MRI). By incorporating prior knowledge of myelin and cell membrane densities, absolute tissue density values were estimated from relative intracellular and intraneurite density values obtained from diffusion MRI. The NODDI (neurite orientation distribution and density imaging) technique, which can be applied clinically, was used. Myelin density estimates were compared with the results of electron and light microscopy in ex vivo mouse brain and with published density estimates in a healthy human brain. In ex vivo mouse brain, estimated myelin densities in different subregions of the mouse corpus callosum were almost identical to values obtained from electron microscopy (diffusion MRI: 42 ± 6%, 36 ± 4%, and 43 ± 5%; electron microscopy: 41 ± 10%, 36 ± 8%, and 44 ± 12% in genu, body and splenium, respectively). In the human brain, good agreement was observed between estimated fiber density measurements and previously reported values based on electron microscopy. Estimated density values were unaffected by crossing fibers. . ©
language:
source:
identifier: ISSN: 1065-9471 ; E-ISSN: 1097-0193 ; DOI: 10.1002/hbm.22872
fulltext: fulltext
issn:
  • 1065-9471
  • 10659471
  • 1097-0193
  • 10970193
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titleBrain tissue compartment density estimated using diffusion‐weighted MRI yields tissue parameters consistent with histology
creatorSepehrband, Farshid ; Clark, Kristi A. ; Ullmann, Jeremy F. P. ; Kurniawan, Nyoman D. ; Leanage, Gayeshika ; Reutens, David C. ; Yang, Zhengyi
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subjectDiffusion‐Weighted Mri ; Noddi ; Dti ; Tissue Compartment Density ; Validation ; Electron Microscopy
descriptionWe examined whether quantitative density measures of cerebral tissue consistent with histology can be obtained from diffusion magnetic resonance imaging (MRI). By incorporating prior knowledge of myelin and cell membrane densities, absolute tissue density values were estimated from relative intracellular and intraneurite density values obtained from diffusion MRI. The NODDI (neurite orientation distribution and density imaging) technique, which can be applied clinically, was used. Myelin density estimates were compared with the results of electron and light microscopy in ex vivo mouse brain and with published density estimates in a healthy human brain. In ex vivo mouse brain, estimated myelin densities in different subregions of the mouse corpus callosum were almost identical to values obtained from electron microscopy (diffusion MRI: 42 ± 6%, 36 ± 4%, and 43 ± 5%; electron microscopy: 41 ± 10%, 36 ± 8%, and 44 ± 12% in genu, body and splenium, respectively). In the human brain, good agreement was observed between estimated fiber density measurements and previously reported values based on electron microscopy. Estimated density values were unaffected by crossing fibers. . ©
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titleBrain tissue compartment density estimated using diffusion‐weighted MRI yields tissue parameters consistent with histology
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titleBrain tissue compartment density estimated using diffusion‐weighted MRI yields tissue parameters consistent with histology
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abstractWe examined whether quantitative density measures of cerebral tissue consistent with histology can be obtained from diffusion magnetic resonance imaging (MRI). By incorporating prior knowledge of myelin and cell membrane densities, absolute tissue density values were estimated from relative intracellular and intraneurite density values obtained from diffusion MRI. The NODDI (neurite orientation distribution and density imaging) technique, which can be applied clinically, was used. Myelin density estimates were compared with the results of electron and light microscopy in ex vivo mouse brain and with published density estimates in a healthy human brain. In ex vivo mouse brain, estimated myelin densities in different subregions of the mouse corpus callosum were almost identical to values obtained from electron microscopy (diffusion MRI: 42 ± 6%, 36 ± 4%, and 43 ± 5%; electron microscopy: 41 ± 10%, 36 ± 8%, and 44 ± 12% in genu, body and splenium, respectively). In the human brain, good agreement was observed between estimated fiber density measurements and previously reported values based on electron microscopy. Estimated density values were unaffected by crossing fibers. . ©
doi10.1002/hbm.22872
pages3687-3702
date2015-09