Functional magnetic resonance imaging (fMRI) is a non-invasive pre-surgical tool used to map task-related brain activation in brain tumor and vascular lesion patients in order to guide neurosurgeons as they devise a surgical approach to treat these lesions and minimizes post-operative neurological deﬁcits.
Functional Magnetic Resonance Imaging (fMRI) can be used to define brain regions which must be left intact when patients undergo surgery. Critical function is mapped with fMRI using a relevant task
These maps are generated from changes in the blood oxygen level-dependent (BOLD) signal related to neural activity
Task based functional MRI (fMRI) has been used successfully for pre-surgical localization of brain activated regions prior to the performance of brain surgery
To date, usage of fMRI in pre-surgical planning has played a valuable role for neurosurgical procedures
In our pre-surgical Analysis group, for each patient we use various types of language, Memory and Motor Tasks, based on individual medical conditions (tumor region) and neurosurgeons request to help the neuro-surgical team evaluate specific function.
All tasks followed a block design paradigm and Patients are instructed to perform tasks before scanning.
FMRI data is analyzed using FEAT (FMRI Expert Analysis Tool), part of FSL (FMRIB’s Software Library, www.fmrib.ox.ac.uk/fsl)
Word Encoding Memory:
Face Encoding Memory: