Multiple prominent dilated perivascular spaces do not induce Wallerian degeneration as evaluated by diffusion tensor imaging.
It is unknown whether dilated perivascular spaces can affect the adjacent neuronal fibers. We describe conventional MR and diffusion tensor imaging findings of a case with multiple, prominent dilated perivascular spaces in the left cerebral hemisphere. Diffusion tensor imaging showed no alterations in the fractional anisotropy and apparent diffusion coefficient values for the corona radiata, posterior rim of the internal capsule, and the cerebral peduncle, indicating no wallerian degeneration associated with dilated perivascular spaces.
Akter
M
M
Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan.
Hirai
T
T
Kitajima
M
M
Yamada
K
K
Hayashida
Y
Y
Okuda
T
T
Takeshima
H
H
Kuratsu
J
J
Yamashita
Y
Y
D001160:Arterioles / Q000473:pathology; D002540:Cerebral Cortex / Q000098:blood supply* / Q000473:pathology*; D002560:Cerebrovascular Circulation; D038524:Diffusion Magnetic Resonance Imaging; D045604:Extracellular Fluid; D006801:Humans; D008297:Male; D008875:Middle Aged; D009413:Nerve Fibers, Myelinated / Q000473:pathology*; D010841:Pia Mater / Q000098:blood supply / Q000473:pathology; D014855:Wallerian Degeneration / Q000473:pathology*