ArticleClinical neuroradiology2024
Thalamo-mesencephalic Branches of the Posterior Cerebral Artery: a 3D Rotational Angiography Study.
Article in Clinical neuroradiology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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5 citing papers in PubMed.
- Human cerebral arterial morphogenesis explored by 3D microscopic imaging of cleared embryos: Bridging the gap between embryonic and adult anatomy.Journal of anatomy · 2026Article
- Acute ischemic stroke caused by Percheron artery occlusion after vertebral artery stent placement: a case report.BMC neurology · 2026Article
- Inadvertent neuroform atlas stent deployment into a posterior cerebral artery circumflex branch with long-term patency during stent-assisted coiling of a basilar artery aneurysm.Surgical neurology international · 2026Article
- In-vivo Assessment of the Proximal Branches of the Anterior Cerebral Artery Using Rotational Angiography.Clinical neuroradiology · 2025Article
- Artery of Percheron Stroke: A Case Report.Acta medica Lituanic · 2025Article
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Abstract
purposeThe thalamo-mesencephalic (TM) branches of the posterior cerebral artery (PCA) supply critical structures. Previous descriptions of these vessels are inconsistent and almost exclusively rely on cadaver studies. We aimed to provide a neuroradiological description of TM vessels in vivo based on routine 3D rotational angiographies (3D-RA).
methodsWe analyzed 3D-RAs of 58 patients with pathologies remote from the PCA. PCA-origins were considered. Delineation, origin and number of branches of the collicular artery (CA), the accessory CA (ACA), the posterior thalamoperforating artery (PTA), the thalamogeniculate artery (TGA), and the posterior medial (PMCA) and lateral (PCLA) choroid arteries were assessed. The PTAs were categorized based on Percheron's suggested classification.
resultsA CA was identified in 84%, an ACA in 20%. The PTA was delineated in 100%. In 27%, PTA anatomy had features of several Percheron types (n = 7) or vessels emanating from a net like origin (n = 9). 26% had a type IIb PTA. A fetal type PCA origin with hypoplastic ipsilateral P1 was observed in 5 cases with type IIa (n = 2) or type IIb (n = 3) PTAs originating from contralateral P1. The TGA was identified in 85% of patients, with ≥ 2 branches in 67%. The PMCA was delineable in 41%, the PLCA in 100%.
conclusionThe prevalence of a proper "Artery of Percheron" type IIb PTA seems to be higher than previously reported. A fetal type P1-origin may be predictive of a type IIa/b PTA emanating from contralateral P1. 3D-RA may be useful for planning PCA interventions, as impairment of TM branches is a severe risk.
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