Akademik Veri Yönetim Sistemi
3th International Conference on Neurology and Brain Disorders, Rome, İtalya, 18 - 19 Kasım 2024, ss.49, (Özet Bildiri)
The anterior cerebral artery (ACA) arises from the internal carotid artery as the smaller of its two terminal branches. Afterward, the ACA courses anteromedially across the optic nerve to reach the longitudinal fissure. At this point, it branches a short anterior communicating artery (AcoA), which traverses transversely to anastomose with the contralateral ACA. The ACA further gives off multiple anteromedial central branches that supply to the optic chiasm, lamina terminalis, hypothalamus, paraolfactory areas, anterior columns of the fornix, and the cingulate gyrus.
According to surgical terminology, the ACA is divided into three parts: A1, A2, and A3. The A1 extends from the artery's origin to the emergence of the AcoA from the ACA. A2 is the part from the point where it gives off the ACoA to the beginning of the callosomarginal artery and A3, also named the pericallosal artery, is the part distal to the origin of the callosomarginal artery.
The ACA has cortical and central branches. Cortical branches are referred to according to the region to which they are distributed. The orbital branches provide vascular supply to the olfactory cortex, gyrus rectus, and medial orbital gyrus. Similarly, the frontal branches perfuse the corpus callosum, cingulate gyrus, medial frontal gyrus, and paracentral lobule. Additionally, the parietal branches deliver blood to the precuneus Anterior communicating artery aneurysms represent the most prevalent form of intracranial aneurysms. It is of paramount importance for neurosurgeons, radiologists, Neurologist and anatomists to be conversant with the variations of the anterior communicating artery. In this study, a very rare anterior cerebral artery variation found in a patient presenting with transient ischaemic attack is presented. In this patient, the left A1 and anterior communicating artery were hypoplasic, while the right anterior cerebral artery divided in front of the corpus callosum and supplied both hemispheres.