Central sulcus on axial imaging [Neurosurgery Wiki]

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====== Central sulcus on axial imaging ======

Identification of the [[central sulcus]] is important to localize the [[motor strip]] (contained in the [[precentral gyrus]]). The central sulcus (CS) is visible on 93% of [[CT]]s and 100% of [[MRI]]s
((Naidich TP, Brightbill TC. The pars marginalis, I: A "bracket" sign for the central sulcus in axial plane
CT and MRI. Int J Neuroradiol. 1996; 2:3–19)).

It curves posteriorly as it approaches the [[interhemispheric fissure]] (IHF), and often terminates in the [[paracentral lobule]], just anterior to the [[pars marginalis]] (pM) within the pars bracket 
((Naidich TP, Brightbill TC. The pars marginalis, I: A "bracket" sign for the central sulcus in axial plane
CT and MRI. Int J Neuroradiol. 1996; 2:3–19))
(i.e. the CS often does not reach the midline).

{{::centralsulcusmri.png?400|}}