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Updated: Dec 9, 2025

Fiber Connections of the Supplementary Motor Area Revisited: Methodology of Fiber Dissection, DTI, and Three Dimensional Documentation
Published on: May 23, 2017
A Practical Approach to Imaging of the Supplementary Motor Area and Its Subcortical Connections
Mar Jiménez de la Peña1, Santiago Gil-Robles2, Vicente Martínez de Vega3
1Department of Radiology, Hospital Universitario QuironSalud Madrid, C/ Diego de Velázquez 1, Pozuelo de Alarcón, 28223, Madrid, Spain. cataldo@telefonica.net.
Purpose Of Review:
First, an anatomical and functional review of these cortical areas and subcortical connections with T-fMRI and tractography techniques; second, to demonstrate the value of this approach in neurosurgical planning in a series of patients with tumors close to the SMA.
Recent Findings:
Implications in language and cognitive networks with a clear hemispheric lateralization of these SMA/pre-SMA. The recommendation of the use of the advanced neuroimaging studies for surgical planning and preservation of these areas. The SMA/pre-SMA and their subcortical connections are functional areas to be taken into consideration in neurosurgical planning. These areas would be involved in the control/inhibition of movement, in verbal expression and fluency and in tasks of cognitive control capacity. Its preservation is key to the patient's postsurgical cognitive and functional evolution.
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