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Preoperative Cortical Mapping for Brain Tumor Surgery Using Navigated Transcranial Stimulation: Analysis of Accuracy.
Paiva, Wellingson Silva; Fonoff, Erich Talamoni; Dos Santos Silva, Rhuann Pontes; Schiavao, Lucas; Brunoni, André Russowsky; de Almeida, César Cimonari; Júnior, Carlos Carlotti.
Afiliação
  • Paiva WS; Neurosurgery Division, University of São Paulo, São Paulo 14040-906, Brazil.
  • Fonoff ET; Neurosurgery Division, University of São Paulo, São Paulo 14040-906, Brazil.
  • Dos Santos Silva RP; Medicine Department, Catholic University of Pernambuco, Recife 50050-900, Brazil.
  • Schiavao L; Neurosurgery Division, University of São Paulo, São Paulo 14040-906, Brazil.
  • Brunoni AR; Neurosurgery Division, University of São Paulo, São Paulo 14040-906, Brazil.
  • de Almeida CC; Neurosurgery Division, University of São Paulo, São Paulo 14040-906, Brazil.
  • Júnior CC; Neurosurgery Division, University of São Paulo, São Paulo 14040-906, Brazil.
Brain Sci ; 14(9)2024 Aug 28.
Article em En | MEDLINE | ID: mdl-39335363
ABSTRACT
Transcranial magnetic stimulation (TMS) represents a distinctive technique for non-invasive brain stimulation. Recent advancements in image processing have enabled the enhancement of TMS by integrating magnetic resonance imaging (MRI) modalities with TMS via a neuronavigation system. The aim of this study is to assess the efficacy of navigated TMS for cortical mapping in comparison to surgical mapping using direct electrical stimulation (DES). This study involved 30 neurosurgical procedures for tumors located in or adjacent to the precentral gyrus. The DES points were compared with TMS responses based on the original distances of vectorial modules. There was a notable similarity in the points obtained from the two mapping methods. The distances between the geometric centers of TMS and DCS were 4.85 ± 1.89 mm. A strong correlation was identified between these vectorial points (r = 0.901, p < 0.001). The motor threshold in TMS was highest in the motor cortex adjacent to the tumor compared to the normal cortex (p < 0.001). Patients with deficits exhibited excellent accuracy in both methods. In view of this, TMS demonstrated reliable and precise application in brain mapping, which is a promising method for preoperative functional mapping in motor cortex tumor surgery.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Brain Sci Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Brasil País de publicação: Suíça

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Brain Sci Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Brasil País de publicação: Suíça