Anno:2011Lavoro:Mese:Novembertitolobreve:EffectivenessofNIRStosamplethefrontalbraincortexVolume:77primoautore:ZANATTANo:11pagine:1-2Rivista:MINERVAANESTESIOLOGICACodRivista:MinervaAnestesiolMINERVAMEDICACOPYRIGHT®LETTERTOTHEEDITOREffectivenessofNIRStosamplethefrontalbraincortexinallcardiacsurgerypatientsP.ZANATTA,A.FORTICardiacAnesthesia,Neurophysiology,DepartmentofAnesthesiaandIntensiveCare,AziendaOspedalieraULSS9,Treviso,ItalyDearEditor,technicalaspectsofNIRSthatmighthaveimportantclinicalheJournalMinervaAnestesiologicahasrecentlypub-implications.TlishedanEditorial1aboutNIRS(near-infraredspectros-NIRSisusedtomeasureregionalcerebraltissueoxygencopy)anditslimitations.Wewouldliketounderlinesomesaturation(rSO2).ThistechniqueusesprinciplesofopticalFigure1.—Hypotheticalresolutiondepthof2.5cmofNIRSasvisualizedforINVOS(Somanetics).CoronalbrainRMNviewsofthreecardiacsurgerypatients.Notethebrainatrophyinthe74yearsoldpatientsinwhichtheresolutiondepthisnotadequatetosamplethefrontalbraincortex.Thisdocumentisprotectedbyinternationalcopyrightlaws.Noadditionalreproductionisauthorized.ItispermittedforpersonalusetodownloadandsaveonlyonefileandprintonlyonecopyofthisArticle.Itisnotpermittedtomakeadditionalcopies(eithermaketoItisnotpermittedArticle.ofthisonecopyandprintonefileonlyonlyandsavedownloadusetopersonalforItispermittedisauthorized.Noadditionalreproductionlaws.internationalcopyrightbyThisdocumentisprotectedothermeanswhichmailingoranyelectronicofthearticlesharingfilesystems,onlineinternetand/orintranetcopythroughtheelectronicdistributetoItisnotpermittedpurpose.Articleanyforoftheorelectronic)eitherprintedorsystematically,sporadicallyItisuseisnotpermitted.orcommercialpersonalforofreprintsTheproductionArticleisnotpermitted.theworksfromofderivativeThecreationUseisnotpermitted.CommercialArticlepartanyTheuseofalloranyforoftheArticle.theaccesstoallowmayorotherproprietarytrademark,logo,encloseanytotechniquesoruseframingframetoItisnotpermittedArticle.posto