Dominant ipsilateral posterior cerebral artery on magnetic resonance angiography in acute ischemic stroke

Cerebrovascular Diseases
Ju-Hun LeeByung-Chul Lee

Abstract

In acute infarction involving the anterior circulation, the ipsilateral posterior cerebral artery (PCA) often appears to be longer than the contralateral PCA on magnetic resonance angiography. We described this finding as dominant ipsilateral PCA (DIPCA). We sought to find the frequency of DIPCA and its predictors. We recruited 164 consecutive individuals with acute infarct involving the anterior circulation, and analyzed their radiological and clinical features. DIPCA was noted in 27 patients (16.5%). It was more frequent in patients with than in patients without steno-occlusive disease of the ipsilateral anterior circulation (30.5 vs. 2.4%, p < 0.001). Multivariate analysis revealed a significant relationship between the severity of arterial lesions in the ipsilateral anterior circulation and DIPCA (p = 0.039). DIPCA may reflect increased leptomeningeal collateral flow via the ipsilateral PCA, and its development may be dependent on the stenotic anterior circulation.

References

May 1, 1989·Stroke; a Journal of Cerebral Circulation·W M FeinbergJ J Corrigan
Sep 19, 1997·Journal of Computer Assisted Tomography·K OkamotoS Tokiguchi
Dec 3, 1999·Stroke; a Journal of Cerebral Circulation·M J HartkampW P Mali
Apr 13, 2000·Neurology·M G LansbergM P Marks
Apr 5, 2001·European Journal of Radiology·H BosmansG Marchal

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Citations

Dec 20, 2005·Neuroimaging Clinics of North America·David S Liebeskind
Apr 22, 2008·Journal of Neuroimaging : Official Journal of the American Society of Neuroimaging·Sean RulandFady T Charbel
Oct 15, 2021·Journal of Neuroimaging : Official Journal of the American Society of Neuroimaging·Na WangLihua Wang

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