Please use this identifier to cite or link to this item: https://doi.org/10.1002/jmri.21419
DC FieldValue
dc.titleInvestigation and validation of intersite fMRI studies using the same imaging hardware
dc.contributor.authorSutton, B.P.
dc.contributor.authorGoh, J.
dc.contributor.authorHebrank, A.
dc.contributor.authorWelsh, R.C.
dc.contributor.authorChee, M.W.L.
dc.contributor.authorPark, D.C.
dc.date.accessioned2014-11-26T08:29:03Z
dc.date.available2014-11-26T08:29:03Z
dc.date.issued2008-07
dc.identifier.citationSutton, B.P., Goh, J., Hebrank, A., Welsh, R.C., Chee, M.W.L., Park, D.C. (2008-07). Investigation and validation of intersite fMRI studies using the same imaging hardware. Journal of Magnetic Resonance Imaging 28 (1) : 21-28. ScholarBank@NUS Repository. https://doi.org/10.1002/jmri.21419
dc.identifier.issn10531807
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/110145
dc.description.abstractPurpose: To provide a between-site comparison of functional MRI (fMRI) signal reproducibility in two laboratories equipped with identical imaging hardware and software. Many studies have looked at within-subject reliability and more recent efforts have begun to calibrate responses across sites, magnetic field strengths, and software. By comparing identical imaging hardware and software, we provide a benchmark for future multisite comparisons. Materials and Methods: We evaluated system compatibility based on noise and stability properties of phantom scans and contrast estimates from repeated runs of a blocked motor and visual task on the same four subjects at both sites. Results: Analysis of variance (ANOVA) and region of interest (ROI) analysis confirmed that site did not play a significant role in explaining variance in our large fMRI dataset. Effect size analysis shows that between-subject differences account for nearly 10 times more variance than site effects. Conclusion: We show that quantitative comparisons of contrast estimates derived from cognitive experiments can reliably be compared across two sites. This allows us to establish an effective platform for comparing group differences between two sites using fMRI when group effects are potentially confounded with site, as in the study of neurocultural differences between countries or multicenter clinical trials. © 2008 Wiley-Liss, Inc.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1002/jmri.21419
dc.sourceScopus
dc.subjectCultural neuroscience
dc.subjectEffect size
dc.subjectFunctional MRI
dc.subjectIntersite comparisons
dc.subjectReproducibility
dc.typeArticle
dc.contributor.departmentDUKE-NUS GRADUATE MEDICAL SCHOOL S'PORE
dc.description.doi10.1002/jmri.21419
dc.description.sourcetitleJournal of Magnetic Resonance Imaging
dc.description.volume28
dc.description.issue1
dc.description.page21-28
dc.description.codenJMRIF
dc.identifier.isiut000257865800003
Appears in Collections:Staff Publications

Show simple item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

32
checked on Jul 31, 2020

WEB OF SCIENCETM
Citations

32
checked on Jul 31, 2020

Page view(s)

65
checked on Aug 1, 2020

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.