Is the omega sign a reliable landmark for the neurosurgical team? An anatomical study about the central sulcus region

Arquivos de Neuro-Psiquiatria

Thiago Rodrigues¹  Mariana Rodrigues¹  Daniel Paz¹  Marcos Devanir Costa¹  Bruno Santos¹  Vinicius Braga¹  Manoel De Paiva Neto¹  Ricardo Centeno¹  Sergio Cavalheiro¹  Feres Chaddad-neto¹ 

关键词: omega sign;    central sulcus;    anatomy;    primary motor cortex;    sinal do ômega;    sulco central;    anatomia;    córtex motor primário;   

DOI  :  10.1590/0004-282X20150160

来源: SciELO

【 摘 要 】

ABSTRACTThe central sulcus region is an eloquent area situated between the frontal and parietal lobes. During neurosurgical procedures, it is sometimes difficult to understand the cortical anatomy of this region.Objective Find alternative ways to anatomically navigate in this region during neurosurgical procedures.Method We analyzed eighty two human hemispheres using a surgical microscope and completed a review of the literature about central sulcus region.Results In 68/82 hemispheres, the central sulcus did not reach the posterior ramus of the lateral sulcus. A knob on the second curve of the precentral gyrus was reliably identified in only 64/82 hemispheres.Conclusion The morphometric data presented in this article can be useful as supplementary method to identify the central sulcus region landmarks.

【 授权许可】

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