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Verfasst von:Lie, Chuh-Hyoun [VerfasserIn]   i
 Hirsch, J. G. [VerfasserIn]   i
 Rossmanith, C. [VerfasserIn]   i
 Hennerici, Michael G. [VerfasserIn]   i
 Gass, Achim [VerfasserIn]   i
Titel:Clinicotopographical correlation of corticospinal tract stroke
Titelzusatz:a color-coded diffusion tensor imaging study
Verf.angabe:C. Lie, J.G. Hirsch, C. Rossmanith, M.G. Hennerici, A. Gass
Jahr:2004
Umfang:7 S.
Fussnoten:Online published: December 11, 2003 ; Gesehen am 19.05.2022
Titel Quelle:Enthalten in: Stroke
Ort Quelle:New York, NY : Association, 1970
Jahr Quelle:2004
Band/Heft Quelle:35(2004), 1, Seite 86-92
ISSN Quelle:1524-4628
Abstract:Background- Small capsular strokes are difficult to assess with regard to the precise location and the extent of pyramidal tract damage with conventional brain imaging. Color-coded diffusion tensor imaging (CDTI) provides a means to visualize the course of the corticospinal tract within the white matter. In addition to T2-weighted MRI, diffusion-weighted MRI and CDTI were used to analyze the topographical patterns of small lacunar corticospinal tract strokes. - METHODS: We examined 15 patients with pyramidal tract strokes in the subacute phase (days 3 to 7). Lesions were identified on diffusion-weighted MRI and superimposed on CDTI images. The anatomic location and pattern of the lesion were visualized on CDTI with regard to the corticospinal tract and subsequently compared with the clinical presentation. In addition, infarct areas were evaluated with quantitative parameters: mean diffusivity and lattice anisotropy index of lesions were determined. - RESULTS: We identified 5 different patterns of corticospinal tract stroke falling into 2 clinical subgroups: (1) those with marked deficits and minor improvement (6/15) and (2) those with good recovery (9/15). Group 1 had long lesions centered in the pyramidal tract, involving the basal ganglia (anterior choroidal artery); group 2 lesions were very small and/or located anteriorly and medially (periventricular anterior choroidal artery territory; thalamogeniculate, tuberothalamic, and lateral striate branches). Lesions showed a significant increase of mean diffusivity and decrease of lattice anisotropy. - CONCLUSIONS: CDTI allows in vivo differentiation of distinct subcortical stroke subtypes. Improved anatomic definition of lesion localization using CDTI may help in better establishing the prognosis for patients after subcortical stroke.
DOI:doi:10.1161/01.STR.0000106912.09663.EB
URL:Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.

Volltext: https://doi.org/10.1161/01.STR.0000106912.09663.EB
 DOI: https://doi.org/10.1161/01.STR.0000106912.09663.EB
Datenträger:Online-Ressource
Sprache:eng
Sach-SW:Aged
 Aged, 80 and over
 Anisotropy
 Brain Edema
 Brain Infarction
 Color
 Diffusion Magnetic Resonance Imaging
 Female
 Humans
 Image Enhancement
 Male
 Middle Aged
 Predictive Value of Tests
 Pyramidal Tracts
 Risk Factors
 Sensitivity and Specificity
 Stroke
K10plus-PPN:1803951869
Verknüpfungen:→ Zeitschrift

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