Open AccessMorphometry and anatomic variations of the posterior cerebral artery in Northeast Brazil
Author(s) -
Andressa Gabriella Duarte de Queiroz,
Fábio Antônio Serra de Lima Júnior,
Júlio César Claudino dos Santos,
Larissa Eleutério Gomes,
Kamila Peixoto Ribeiro,
Guilherme Cordeiro Bezerra,
André de Sá Braga Oliveira
Publication year - 2021
Language(s) - English
Resource type - Conference proceedings
DOI - 10.5327/1516-3180.336
Subject(s) - circle of willis , posterior cerebral artery , anterior cerebral artery , cerebral arteries , anatomy , artery , medicine , middle cerebral artery , radiology , cardiology , ischemia
The posterior cerebral artery (PCA) is a vessel of the Circle of Willis. Variations are observed in the first segments of the PCA and its branches, especially in the thalamoperforating arteries (TPAs) and in the artery of Percheron (AP). Anatomical presentation of these arteries is of relevant clinical importance for safer neurosurgical approaches. Objective: To identify the most frequent PCA and TPA patterns and the morphometry of P1 and P2 branches in Northeast Brazil. Methods: This is an observational study. Nine Circle of Willis from human brains were isolated. PCA morphology, TPAs classification and prevalence of AP were evaluated. The length and diameter of the P1 and P2 segments of the PCA were measured. Values of p 0.05). Conclusions: Adult pattern of PCA was the most frequent and trifurcation of PCA, a rare anomaly, was found in 22,2% of specimens. TPAs were mostly bilateral multiple type. No differences between sides in the length and diameter of the segments P1 and P2 were found. These data can contribute to safer approaches to neurological pathologies in this population in Northeast Brazil.