NDLI: Comparing The Spatial and Temporal Reproducibility of Brain Activation Using Three fMRI Techniques: BOLD, FAIR, and VASO

Content Provider	IEEE Xplore Digital Library
Author	Chia-Wei Lee Der-Yow Chen Chang-Wei Wu Jyh-Horng Chen
Copyright Year	2007
Description	Author affiliation: Nat. Taiwan Univ., Taipei (Chia-Wei Lee; Der-Yow Chen; Chang-Wei Wu; Jyh-Horng Chen)
Abstract	In order to conduct the longitudinal fMRI study, measuring of the reproducibility of functional imaging is important. Our immediate study, we compared the spatial activation map reproducibility of three fMRI techniques with 8 Hz checkerboard visual stimuli in three experiment sessions. The interval from experiment session one session two is one hour, and the interval form experiment session one to session three is three months. In addition to traditional blood oxygenation level dependent (BOLD) fMRI, CBF and CBV fMRI measured by flow-sensitive alternating inversion recovery (FAIR) and vascular space occupancy (VASO), techniques were also used The latter two developed techniques are more suitable in comparing the longitudinal variation of single subject or among subjects since the quantification capability of CBF and CBV. However, signal change of FAIR and VASO is smaller than BOLD (1/2 and 1/3, respectively) and may reduce the reproducibility of fMRI activation. An equivalent ROI of three techniques was selected in which contained all the activation areas located around primary visual cortex. Percentage of activation overlapping was then calculated from three experiments. The mean overlapping percentage of 7 participants between experiment session one and two was 67.0%, 63.7%, and 65.2%, for BOLD, FAIR, and VASO respectively. There is no significant difference in reproducibility among these techniques. Although FAIR showed slightly better overlapping percentage (61.9%) than the percentage of BOLD and VASO (54.0% and 56.7%) in experiment session one and three, there is still no significant difference between three fMRI techniques. This result indicated that there is no significant difference of reproducibility between three fMRI techniques, although FAIR and VASO show smaller signal change than BOLD.
Starting Page	258
Ending Page	261
File Size	775479
Page Count	4
File Format	PDF
ISBN	9781424409488
DOI	10.1109/NFSI-ICFBI.2007.4387745
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-10-12
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Performance evaluation Head Magnetic resonance imaging Laboratories Psychology Reproducibility of results Spatial resolution Blood Tellurium Signal detection
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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