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. 2019 Feb;41(2):181-186.
doi: 10.1007/s00276-018-2118-x. Epub 2018 Nov 14.

Main anatomical features of the calcarine sulcus: a 3D magnetic resonance imaging at 3T study

Ahmad Rachid El Mohamad  1 , Laurent Tatu  2   3 , Thierry Moulin  3 , Sami Fadoul  4 , Fabrice Vuillier  2   3
Affiliations

Main anatomical features of the calcarine sulcus: a 3D magnetic resonance imaging at 3T study

Ahmad Rachid El Mohamad et al. Surg Radiol Anat. 2019 Feb.

Abstract

Objective: The purpose of our study was to determine the main anatomical features of the calcarine sulcus using a 3-T MRI.

Methods: Fifty human brains have been explored using an MRI 3-T in Doctors Center in Beirut (Lebanon).

Results: The calcarine sulcus was identified in 100% of cases. In most cases, it had a continuous aspect with several peaks. In all our specimens, the calcarine sulcus crosses the parieto-occipital fissure. The majority of their collateral branches and their connections with other sulci were located at the level of the calcarine sulcus properly. In the majority of specimens, the deepest part of the anterior calcarine sulcus forms a protrusion in the occipital horn of the lateral ventricle called calcar avis.

Conclusion: Our study emphasizes the fact that the course patterns of the calcarine sulcus are highly variable. The description of the main anatomical features of the calcarine sulcus obtained from our study can be used as a reference for fMRI exploration and is useful for brain surgery.

Keywords: Calcarine sulcus; Magnetic resonance imaging; Occipital lobe; Striate cortex.

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