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American Journal of Neuroradiology
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Europe PubMed Central
Other literature type . 2008
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Article . 2008
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American Journal of Neuroradiology
Article . 2008 . Peer-reviewed
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High b-Value Diffusion Tensor Imaging of the Neonatal Brain at 3T

Authors: Dudink, J; Larkman, DJ; Kapellou, O; Boardman, JP; Allsop, JM; Cowan, FM; Hajnal, JV; +3 Authors

High b-Value Diffusion Tensor Imaging of the Neonatal Brain at 3T

Abstract

BACKGROUND AND PURPOSE: Diffusion-weighted MR imaging studies of the adult brain have shown that contrast between lesions and normal tissue is increased at high b-values. We designed a prospective study to test the hypothesis that diffusion tensor imaging (DTI) obtained at high b-values increases image contrast and lesion conspicuity in the neonatal brain. MATERIALS AND METHODS: We studied 17 neonates, median (range) age of 10 (2–96) days, who were undergoing MR imaging for clinical indications. DTI was performed on a Philips 3T Intera system with b-values of 350, 700, 1500, and 3000 s/mm2. Image contrast and lesion conspicuity at each b-value were visually assessed. In addition, regions of interest were positioned in the central white matter at the level of the centrum semiovale, frontal and occipital white matter, splenium of the corpus callosum, posterior limb of the internal capsule, and the thalamus. Apparent diffusion coefficient (ADC) and fractional anisotropy (FA) values for these regions were calculated. RESULTS: Isotropic diffusion image contrast and lesion-to-normal-tissue contrast increased with increasing b-value. ADC values decreased with increasing b-value in all regions studied; however, there was no change in FA with increasing b-value. CONCLUSIONS: Diffusion image contrast increased at high b-values may be useful in identifying lesions in the neonatal brain.

Country
Netherlands
Subjects by Vocabulary

Microsoft Academic Graph classification: Internal capsule Splenium Corpus callosum White matter Centrum semiovale Fractional anisotropy medicine Effective diffusion coefficient business.industry medicine.anatomical_structure Nuclear medicine business Diffusion MRI

Keywords

Male, Sensitivity and Specificity, Pediatrics, Image Interpretation, Computer-Assisted, Humans, Radiology, Nuclear Medicine and imaging, Infant, Newborn, Brain, Infant, Reproducibility of Results, Diffusion Magnetic Resonance Imaging, Female, Neurology (clinical)

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    influence
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  • citations
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    36
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Top 10%
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Top 10%
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Top 10%
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
36
Top 10%
Top 10%
Top 10%
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