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. 2016 Feb 17;10:12. doi: 10.3389/fnana.2016.00012

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Copyright © 2016 Viviani.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution and reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Vascular frequency maps illustrating incidence of vasculature in the medial wall (top row) and in the superior portion of the brain (bottom row), overlaid on the high-resolution ICBM template brain. The disappearance of the sagittal sinus at the topmost part of the brain is due to artifactual loss of coverage. Vessels and sinuses (blue labels): CM, region corresponding to the common course of the callosomarginal artery, when present; BA, basilar artery; CA, anterior cerebral artery; PC, pericallosal artery. SaS, sagittal sinus; StS, straight sinus; GCV, great cerebral vein. There is no consensus in the literature on point of transition between anterior cerebral and pericallosal artery. In green: POS, parieto-occipital sulcus; CF, calcarine fissure; PCS, precentral sulcus; CS, central sulcus; IPS, intraparietal sulcus.