Resection of lesions involving motor or language areas or pathways requires the intraoperative identification of functional cortical and subcortical sites for effectively and safe guidance. Diffusion tensor (DT) imaging and fiber tractography are MR imaging techniques based on the concept of anisotropic water diffusion in myelinated fibers, which enable 3D reconstruction and visualization of white matter tracts and provide information about the relationship of these tracts to the tumor mass. The authors routinely used DT imaging fiber tractography to reconstruct various tracts involved in the motor and/or language system in a large series of patients with lesions involving the motor and/or language areas or pathways. The DT imaging fiber tractography data were loaded into the neuronavigational system and combined intraoperatively with those obtained from direct electrical stimulation applied at the subcortical level. In this paper the authors report the results of their experience, describing the findings for each tract and discussing technical aspects of the combined use as well as the pitfalls.
Intraoperative use of diffusion tensor imaging fiber tractography and subcortical mapping for resection of gliomas: technical considerations / L. Bello, A. Castellano, E.M. Fava, G. Casaceli, M. Riva, G. Scotti, S.M. Gaini, A. Falini. - In: NEUROSURGICAL FOCUS. - ISSN 1092-0684. - 28:2(2010 Feb), pp. E6.1-E6.14.
|Titolo:||Intraoperative use of diffusion tensor imaging fiber tractography and subcortical mapping for resection of gliomas: technical considerations|
BELLO, LORENZO (Primo)
CASTELLANO, ANTONELLA (Secondo)
GAINI, SERGIO MARIA (Penultimo)
|Parole Chiave:||intraoperative mapping ; glioma ; diffusion tensor imaging fiber tractography ; motor and language subcortical sites|
|Settore Scientifico Disciplinare:||Settore MED/27 - Neurochirurgia|
Settore MED/26 - Neurologia
|Data di pubblicazione:||feb-2010|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.3171/2009.12.FOCUS09240|
|Appare nelle tipologie:||01 - Articolo su periodico|