Publication:
Design of an MR compatible fNIRS instrument

dc.contributor.coauthorEmir, U.
dc.contributor.coauthorAdemoglu, A.
dc.contributor.coauthorÖztürk, C.
dc.contributor.coauthorAydin, K.
dc.contributor.coauthorDemiralp, T.
dc.contributor.coauthorDincer, A.
dc.contributor.coauthorAkin, A.
dc.contributor.departmentDepartment of Physics
dc.contributor.kuauthorKurt, Adnan
dc.contributor.schoolcollegeinstituteCollege of Sciences
dc.date.accessioned2024-11-09T23:39:24Z
dc.date.issued2005
dc.description.abstractAcquiring functional near infrared spectroscopy (fNIRS) and functional magnetic resonance-imaging (fMRI) data are usually done asynchronously. In order to correlate these two different modalities’ data, measurements must be performed at the same time. In this study, we have designed a new MR compatible continuous wave intensity based fNIRS device to overcome this problem. For MR compatible fNIRS, we used two LEDs with wavelengths at 660 and 870 nm. There are four photodiodes for light detection. LEDs operated in a sequential multiplexing mode with adjustable "on" time for each LED. Emitted and diffused light was transferred to and from the tissue through 10 m long single mode plastic optical fibers (INDUSTRIAL FIBER OPTICS, INC.). By using fibers, we overcome MR compatibility problems that can be caused by semi-conductors on probe. This MR compatible fNIRS design can provide synchronous measurements with low cost.
dc.description.indexedbyWOS
dc.description.indexedbyScopus
dc.description.openaccessYES
dc.description.publisherscopeInternational
dc.description.sponsoredbyTubitakEuN/A
dc.description.volume5686
dc.identifier.doi10.1117/12.590710
dc.identifier.issn1605-7422
dc.identifier.quartileQ3
dc.identifier.scopus2-s2.0-23244435566
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-23244435566&doi=10.1117%2f12.590710&partnerID=40&md5=b1c11399e54b9bacbc8467431b976430
dc.identifier.urihttps://hdl.handle.net/20.500.14288/13110
dc.keywordsfMRI
dc.keywordsFunctional near infrared spectroscopy
dc.keywordsAbsorption
dc.keywordsChromophores
dc.keywordsLight emitting diodes
dc.keywordsMagnetic resonance imaging
dc.keywordsMetabolism
dc.keywordsOptical fibers
dc.keywordsPhotodiodes
dc.keywordsSemiconductor materials
dc.keywordsTissue
dc.keywordsTomography
dc.keywordsFunctional magnetic resonance-imaging (fMRI)
dc.keywordsFunctional near infrared spectroscopy
dc.keywordsPositron emission tomography (PET)
dc.keywordsTemporal resolution
dc.keywordsInfrared spectroscopy
dc.language.isoeng
dc.publisherSociety of Photo-optical Instrumentation Engineers (SPIE)
dc.relation.ispartofProgress in Biomedical Optics and Imaging - Proceedings of SPIE
dc.subjectPhysics
dc.titleDesign of an MR compatible fNIRS instrument
dc.typeConference Proceeding
dspace.entity.typePublication
local.contributor.kuauthorKurt, Adnan
local.publication.orgunit1College of Sciences
local.publication.orgunit2Department of Physics
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