Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association · 2008
Magnetic resonance correlate of hemiparesis in posterior cerebral artery infarction.
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Finelli Pasquale F
Аннотация
BACKGROUND: Magnetic resonance (MR) imaging of posterior cerebral artery infarction with hemiparesis (PCAH) is limited to case reports with T2-weighted lesions involving the cerebral peduncle.
OBJECTIVE: We sought to extend the MR imaging correlate of PCAH.
METHODS: The case histories and MR/MR angiography findings of 4 patients with PCAH were examined.
RESULTS: Distinct from previously described MR imaging findings with PCAH, diffusion-weighted imaging and/or FLAIR changes were noted in the thalamogeniculate artery (TGA) territory in one patient; in the distribution of the TGA and lateral posterior choroidal artery (PChA) in two patients; and in the TGA and lateral PChA combined with the peduncular perforating arteries of the cerebral peduncle in one patient.
CONCLUSION: Diffusion-weighted imaging changes of infarction in the distribution of the TGA alone or combined with lateral PChA involvement with or without cerebral peduncle infarction correlate with PCAH.
OBJECTIVE: We sought to extend the MR imaging correlate of PCAH.
METHODS: The case histories and MR/MR angiography findings of 4 patients with PCAH were examined.
RESULTS: Distinct from previously described MR imaging findings with PCAH, diffusion-weighted imaging and/or FLAIR changes were noted in the thalamogeniculate artery (TGA) territory in one patient; in the distribution of the TGA and lateral posterior choroidal artery (PChA) in two patients; and in the TGA and lateral PChA combined with the peduncular perforating arteries of the cerebral peduncle in one patient.
CONCLUSION: Diffusion-weighted imaging changes of infarction in the distribution of the TGA alone or combined with lateral PChA involvement with or without cerebral peduncle infarction correlate with PCAH.