Methods: Retrospective clinical data, MRI scans, and cerebral angiograms of all patients referred to a single centre for cerebral revascularization were analysed for PCA involvement. Angiographic patterns of PCA involvement were defined. Associated stroke burden was evaluated using general estimation equation regression models adjusting for prespecified potential confounder age at onset, right or left laterality, and involvement of anterior circulation.
Mazzotta et al. (Thu,) studied this question.