Presurgical language fMRI and postsurgical deficits: a single centre experience

Area of Science:

• Neurosurgery
• Neurology
• Radiology

Background:

• Retrospective analysis of functional magnetic resonance imaging (fMRI) for language lateralization.
• Evaluation of clinical use in a single-center experience.
• Investigating the association between fMRI and surgical outcomes.

Purpose of the Study:

• Assess the impact of fMRI on surgical planning and patient management.
• Determine the predictive value of language lateralization via fMRI for post-surgical deficits.
• Correlate fMRI findings with surgical outcomes in patients undergoing brain surgery.

Main Methods:

• Reviewed 52 cases from July 2007 to July 2010.
• Examined clinical fMRI reports for language dominance.
• Assessed neurological reports for post-surgical language deficits.
• Reviewed neurosurgeon notes for fMRI's impact on surgical planning.

Main Results:

• Conclusive fMRI obtained in 94% of cases.
• Language lateralization contralateral to pathology had 0/9 post-surgical deficits.
• Language lateralization ipsilateral to pathology had 3/13 post-surgical deficits.
• Bilateral language lateralization had 5/13 post-surgical deficits.
• fMRI results influenced surgical planning in several cases.

Conclusions:

• fMRI demonstrating language processing ipsilateral or bilateral to pathology correlates with increased risk of post-surgical language deficits.
• fMRI findings are crucial for pre-surgical planning in cases with atypical language lateralization.
• Consider fMRI results to mitigate risks and optimize surgical strategies for language function preservation.