Please use this identifier to cite or link to this item: https://olympias.lib.uoi.gr/jspui/handle/123456789/19836
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dc.contributor.authorXydis, V.en
dc.contributor.authorAstrakas, L.en
dc.contributor.authorDrougia, A.en
dc.contributor.authorGassias, D.en
dc.contributor.authorAndronikou, S.en
dc.contributor.authorArgyropoulou, M.en
dc.date.accessioned2015-11-24T19:02:48Z-
dc.date.available2015-11-24T19:02:48Z-
dc.identifier.issn0301-0449-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/19836-
dc.rightsDefault Licence-
dc.subjectChild, Preschoolen
dc.subjectContrast Mediaen
dc.subjectFemaleen
dc.subjectGestational Ageen
dc.subjectHumansen
dc.subjectImaging, Three-Dimensionalen
dc.subjectInfanten
dc.subjectInfant, Newbornen
dc.subjectInfant, Prematureen
dc.subjectLeukomalacia, Periventricular/*pathologyen
dc.subjectMagnetic Resonance Imaging/*methodsen
dc.subjectMaleen
dc.subjectReference Valuesen
dc.subjectRegression Analysisen
dc.subjectRetrospective Studiesen
dc.titleMyelination process in preterm subjects with periventricular leucomalacia assessed by magnetization transfer ratioen
heal.typejournalArticle-
heal.type.enJournal articleen
heal.type.elΆρθρο Περιοδικούel
heal.identifier.primary10.1007/s00247-006-0235-x-
heal.identifier.secondaryhttp://www.ncbi.nlm.nih.gov/pubmed/16802143-
heal.identifier.secondaryhttp://www.springerlink.com/content/yx21087061478712/fulltext.pdf-
heal.languageen-
heal.accesscampus-
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών Υγείας. Τμήμα Ιατρικήςel
heal.publicationDate2006-
heal.abstractBACKGROUND: Magnetization transfer imaging assesses the myelination status of the brain. OBJECTIVES: To study the progress of myelination in children with periventricular leucomalacia (PVL) by measuring the magnetization transfer ratio (MTR) and to compare the MTR values with normal values. MATERIALS AND METHODS: Brain MTR in 28 PVL subjects (16 males, 12 females, gestational age 30.7+/-2.5 weeks, corrected age 3.1+/-2.9 years) was measured using a 3D gradient echo sequence (TR/TE 32/8 ms, flip angle 60 degrees, 4 mm/2 mm overlapping sections) without and with magnetization transfer prepulse and compared with normal values for preterm subjects. RESULTS: MTR of white-matter structures followed a monoexponential function model (y=A-B*exp(-x/C)) while the thalamus and caudate nucleus had a poor goodness of fit. MTR of the splenium of the corpus callosum reached a final value lower than normal (0.67 versus 0.70) at a younger age [t(99%) at 10.32 versus 18.90 months; P<0.05]. MTR of the normal-appearing occipital white matter and of the genu of the corpus callosum reached a normal final MTR but at a younger age than normal preterm infants [t(99%) at 8.51 versus 14.50 months and 12.51 versus 20.85 months, respectively]. CONCLUSION: In PVL subjects, myelination of the splenium is characterized by early arrest and deficient maturation. Accelerated myelination in unaffected white matter might suggest a compensatory process of reorganization.en
heal.journalNamePediatric Radiologyen
heal.journalTypepeer-reviewed-
heal.fullTextAvailabilityTRUE-
Appears in Collections:Άρθρα σε επιστημονικά περιοδικά ( Ανοικτά) - ΙΑΤ

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