Back to Search
Start Over
Quantitative comparison of functional MRI and direct electrocortical stimulation for functional mapping
- Publication Year :
- 2007
-
Abstract
- Mapping functional areas of the brain is important for planning tumour resections. With the increased use of functional magnetic resonance imaging (fMRI) for presurgical planning, there is a need to validate that fMRI activation mapping is consistent with the mapping obtained during surgery using direct electrocortical stimulation (DECS).A quantitative comparison of DECS and fMRI mapping techniques was performed, using a patient-specific conductivity model to find the current distribution resulting from each stimulation site. The resulting DECS stimulation map was compared to the fMRI activation map, using the maximal Dice similarity coefficient (MDSC).Our results show some agreement between these two mapping techniques--the stimulation site with the largest MOSC was the only site that demonstrated intra-operative effect.There is a substantial effort to improve the techniques used to map functional areas, particularly using fMRI. It seems likely that fMRI will eventually provide a valid non-invasive means for functional mapping.
- Subjects :
- Pathology
medicine.medical_specialty
Deep brain stimulation
Computer science
medicine.medical_treatment
Deep Brain Stimulation
Direct Electrocortical Stimulation
Models, Neurological
Biophysics
Surgical planning
Brain mapping
Sensitivity and Specificity
Article
Image Interpretation, Computer-Assisted
medicine
Humans
Computer Simulation
Brain Mapping
medicine.diagnostic_test
Reproducibility of Results
Magnetic resonance imaging
Magnetic Resonance Imaging
Computer Science Applications
Functional mapping
Presurgical planning
Therapy, Computer-Assisted
Surgery
Functional magnetic resonance imaging
Neuroscience
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....d40939264cbf538cf3fe475417b05c70