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Line scan diffusion tensor MRI of the cervical spinal cord in preterm infants

✍ Scribed by Brendan P. Murphy; Gary P. Zientara; Petra S. Huppi; Stephan E. Maier; Patrick D. Barnes; Ferenc A. Jolesz; Joseph J. Volpe

Publisher
John Wiley and Sons
Year
2001
Tongue
English
Weight
222 KB
Volume
13
Category
Article
ISSN
1053-1807

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✦ Synopsis

Abstract

Line scan diffusion tensor magenetic resonance imaging (DT‐MRI) of the cervical spinal cord was demonstrated in vivo for unsedated preterm (gestational age 24–30 weeks at birth), very low birthweight (birthweight 620–1300 g) infants at postmenstrual ages from 29–40 weeks. Scalar invariant measures of diffusion [apparent diffusion coefficient (ADC) and relative anisotropy (RA)] determined from a cervical cord region of interest in each case are reported, characterizing the maturational status of the normal third trimester and newborn spinal cord. Mean ADC of 11 infants was 1.2 Β± 0.1 ΞΌm^2^/msec and the mean RA was 24.3 Β± 4.9%. Normal infant cord neural fiber tract morphology was visualized using a mapping of the predominant diffusion tensor eigenvector. Potential clinical applications of line scan DT‐MRI of the spinal cord of preterm and term newborns for assessment of spinal cord injury are discussed. J. Magn. Reson. Imaging 2001;13:949–953. Β© 2001 Wiley‐Liss, Inc.

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