Persistent proatlantal intersegmental artery

Common and uncommon intracranial arterial anatomic variations in multi-detector computed tomography angiography (MDCTA). What radiologists should be aware of. CTA (VRT 3D reconstructions) shows a case of the origin of the occipital artery from the ICA (red arrow)

Common and

uncommon intracranial arterial anatomic variations in multi-detector computed tomography angiography (MDCTA). What radiologists should be aware of. CTA (VRT 3D reconstructions) shows a case of the origin of the occipital artery from the ICA (red arrow)

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Proatlantal artery • Type II proatlantal artery - Ganzer Fall bei Radiopaedia

Proatlantal

artery • Type II proatlantal artery - Ganzer Fall bei Radiopaedia

Harvey, J. Type II proatlantal artery. Case study, Radiopaedia.org. (accessed on 02 Nov 2022) https://doi.org/10.53347/rID-70820 • CC by-nc-sa 3.0 (modified)

Radiopaedia • CC-by-nc-sa 3.0 • de

siehe auch

Arteria carotis externa
Arteria carotis interna
Arteria vertebralis
Arteria carotis communis
persistierende karotidobasiläre Anastomosen
Canalis nervi hypoglossi
type 2 proatlantal artery
type 1 proatlantal artery

The proatlantal intersegmental artery is also known as the type I proatlantal artery, and is one of the persistent carotid-vertebrobasilar anastomoses. It arises from the internal carotid artery (similar to the hypoglossal artery) but instead of heading for the hypoglossal canal, it joins the vertebral artery through the foramen magnum.