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- W2284301956 abstract "Objective:�Toevaluatetheefficacyofbloodoxygenlevel-dependentfunctionalmagneticresonanceimaginginthe� preoperativemappingofsensorimotorcorticesandlanguageareas,�anditsimpactonsurgicaldecisions. Methods:�Fourteenpatientswithtumoursorvascularmalformationsunderwentfunctionalmagneticresonance� imaging�(inthecourseofmotor,�sensory,�andlanguagetasks)�andhadstructuralmagneticresonanceimaging� scansina�1.5Tscanner.�Thefunctionalmagneticresonanceimagingfindingswerethencorrelatedwiththeir� operativeandclinicaloutcomes.�Sevenpatientshadacraniotomywithgeneralanaesthesia,�threehadawake� craniotomywithintraoperativemapping,�twohadradiosurgery,�andtwohadnosurgery.� Results:�Thetechnicalsuccessrateoffunctionalmagneticresonanceimagingsignalactivationinidentifying� eloquentcorticeswas�100%�foralltasksexceptChinesereading,�forwhichthesuccessratewas�83%.�Functional� magneticresonanceimagingmappingaccuracywasdeterminedbycorrelationwithintraoperativecortical� stimulationorsomatosensory-evokedpotentialsphasereversal.�Surgicaldecisionmakingwasinfluencedby� functionalmagneticresonanceimagingin�75%�ofthepatients,�usingamoreaggressiveapproachintwopatients� andasaferapproachintwoothers�(duetolesionproximityof� 2�cm)�orcontralaterallocationofthe� languagecentre.�Inonepatient,�therewereconflictingresultsbetweenWadatestandfunctionalmagnetic� resonanceimagingwithrespecttospeechlateralisation;�intraoperativecorticalstimulationfoundthatfunctional� magneticresonanceimagingcorrectlypredictedthesideofspeechdominance. Conclusion:�Bloodoxygenlevel-dependentfunctionalmagneticresonanceimaginghadahightechnicalsuccess� rateandwasveryaccurateinmappingeloquentcorticalareaspreoperatively.�Itsroleinpreoperativesurgical� assessmentispivotal,�andisrecommendedformost,�ifnotall,�resectivebrainsurgery." @default.
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- W2284301956 date "2011-09-01" @default.
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- W2284301956 title "Blood Oxygen Level-Dependent Functional Magnetic Resonance Imaging in Preoperative Brain Mapping and Making Surgical Decisions" @default.
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