Diffusion-weighted imaging in Wallerian degeneration.
We report two patients displaying hyperintensities on diffusion-weighted imaging (DWI) in the area of Wallerian degeneration (WD) at 12 days after stroke. High signal intensities were more conspicuous on DWI than on T2-weighted images. Both patients showed decreased diffusion anisotropy resulting in elevated apparent diffusion coefficient in the area of WD. These patients illustrate that DWI may be useful in the detection of the early stage of WD.
Kang
D W
DW
Department of Neurology, Seoul National University College of Medicine, 28 Yongon-dong, Chongno-gu, 110-744, Seoul, South Korea.
Chu
K
K
Yoon
B W
BW
Song
I C
IC
Chang
K H
KH
Roh
J K
JK
D000368:Aged; D001921:Brain / Q000473:pathology*; D002545:Brain Ischemia / Q000150:complications / Q000473:pathology*; D002536:Cerebral Arteries; D002544:Cerebral Infarction / Q000150:complications / Q000473:pathology*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D013997:Time Factors; D014855:Wallerian Degeneration / Q000209:etiology / Q000473:pathology*