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. 2021 May 31;31(1):131–137. doi: 10.1055/s-0041-1729671

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Indian Radiological Association. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/).

This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License, which permits unrestricted reproduction and distribution, for non-commercial purposes only; and use and reproduction, but not distribution, of adapted material for non-commercial purposes only, provided the original work is properly cited.

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Fig. 3 — ( A–G ) Case 3: A 64-year-old male with left-sided hemiplegia (NIHSS19). Imaging at 10 hours of stroke: (A) diffusion-weighted image reveals right temporal acute infarction. (B and C) 3D reconstruction of corticospinal tract reveals displacement, mild attenuation, interruption at the motor cortex and corona radiata, decreased fiber number of ipsilateral CST. Imaging at 30 days of stroke: (D) axial T2 WI reveals a decrease in the size and intensity of infarction. (E) Axial FA map at the pons reveals a marked decrease in FA on the right side (rFA: 0.83) denoting Wallerian degeneration. (F) Color-coded map at the pons reveals distortion of right CST. (G) 3D reconstruction of both CSTs reveals attenuation and a decreased number of fiber of CST at the pons denoting Wallerian degeneration. CST, corticospinal tract; FA, fractional anisotropy; NIHSS, National Institute of Health Stroke Scale; rFA, fractional anisotropy ratio; WI, weighted image.