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Anatomical variations in the circle of Willis in canines
Author(s) -
Tanaka Toshiyuki,
Akiyoshi Hideo,
Mie Keiichiro
Publication year - 2018
Publication title -
anatomia, histologia, embryologia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.34
H-Index - 35
eISSN - 1439-0264
pISSN - 0340-2096
DOI - 10.1111/ahe.12390
Subject(s) - circle of willis , aplasia , medicine , anatomy , magnetic resonance angiography , artery , basilar artery , magnetic resonance imaging , radiology , cardiology
The circle of Willis ( CW ) supplies blood to the brain. In humans, anatomical variations in the CW are an important risk factor for transient ischaemic attack and stroke. In canines, anatomical variations in the CW have not been reported. The aim of this study was to determine anatomical variations in the CW in dogs by magnetic resonance angiography. Normal configuration of the CW was observed in 82%, aplasia of the precommunicating segment of the rostral cerebral artery was observed in 14%, and aplasia of the rostral communicating artery was observed in 4% of dogs included in the study.