Summary
A. Reflux: from the anterior to the posterior circulation (or vice-versa) may occur in the presence of of favorable configuration of the Circle of Willis consisting of a combination of a wide diameter of the PCCA and P 1. — A fetal type of PCA will not necessarily allow a reflux into the tip of the BA (importance of P 1). — B. Reflux: should be definitely considered a pathological event after a favorable configuration of the Circle of Willis has been ruled out.
Résumé
A. Reflux: peut se faire de la circulation antérieure vers la postérieure (ou vice-versa) en cas de configuration favorable du cercle de Willis par le gros diamètre de la communicante postérieure et du ségment P1. Le type foetal de l'artère cérébrale postérieure n'est pas forcement à l'origine d'un reflux dans le tronc basilaire (importance de P1). B. Le reflux peut être considéré comme pathologique si une disparution artérielle de favorisation a été exelue.
Zusammenfassung
Anhand von postmortalen und prämortalen Angiogrammen (Carotis-Arteriographie, Vertebralis-Arteriographie) wird die Bedeutung eines Refluxes von der Arteria carotis interna zum Posterior-Kreislauf (oder umgekehrt) untersucht. Anatomische Besonderheiten und pathologische Fälle werden gegenüber gestellt.
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Wollschlaeger, P.B., Wollschlaeger, G., Lopez, V.F. et al. The reflux from internal carotid artery to posterior circulation: Variation of anatomy versus pathology. Neuroradiology 2, 65–75 (1971). https://doi.org/10.1007/BF00337500
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DOI: https://doi.org/10.1007/BF00337500