High b-value diffusion tensor imaging of the remote white matter and white matter of obstructive unilateral cerebral arterial regions.
作者： X. Meng , C. Jun , Q. Wang , X. Zhang , Z. Li
DOI: 10.1016/J.CRAD.2013.03.009
关键词: Anatomy 、 Medicine 、 Internal capsule 、 Cerebral arteries 、 Diffusion MRI 、 Fractional anisotropy 、 Corona radiata 、 White matter 、 Middle cerebral artery 、 Cerebral peduncle
摘要: Aim To assess diffusion changes in the remote white matter and areas of with cerebral artery obstruction without magnetic resonance imaging (MRI) evidence brain parenchymal abnormalities using high b- value tensor (DTI). Materials methods A total 34 patients severe unilateral stenosis (≥75%) or occlusion middle (MCA) abnormal signals at MRI underwent DTI a b 2200 s/mm 2 3 T. Fractional anisotropy (FA), apparent coefficient (ADC), axial diffusivity (eigenvalue λ 1 ) radial 23 were measured bilateral corona radiata, anterior posterior limbs internal capsule, peduncle, pons. Results The mean FA was significantly lower ipsilateral radiata capsule than contralateral ( p higher limb 3 not different between peduncle Conclusions High could sensitively reveal regions MCA abnormalities.
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