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뇌과학이미징연구단
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Inter-vender and test-retest reliabilities of resting-state functional magnetic resonance imaging: Implications for multi-center imaging studies

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Title
Inter-vender and test-retest reliabilities of resting-state functional magnetic resonance imaging: Implications for multi-center imaging studies
Author(s)
An, HS; Moon, WJ; Jae-Kyun Ryu; Park, JY; Yun, WS; Choi, JW; Jahng, GH; Jang-Yeon Park
Publication Date
2017-12
Journal
MAGNETIC RESONANCE IMAGING, v.44, no., pp.125 - 130
Publisher
ELSEVIER SCIENCE INC
Abstract
This prospective multi-center study aimed to evaluate the inter-vendor and test-retest reliabilities of resting-state functional magnetic resonance imaging (RS-fMRI) by assessing the temporal signal-to-noise ratio (tSNR) and functional connectivity. Study included 10 healthy subjects and each subject was scanned using three 3 T MR scanners (GE Signa HDxt, Siemens Skyra, and Philips Achieva) in two sessions. The tSNR was calculated from the time course data. Inter-vendor and test-retest reliabilities were assessed with intra-class correlation coefficients (ICCs) derived from variant component analysis. Independent component analysis was performed to identify the connectivity of the default-mode network (DMN). In result, the tSNR for the DMN was not significantly different among the GE, Philips, and Siemens scanners (P = 0.638). In terms of vendor differences, the inter-vendor reliability was good (ICC = 0.774). Regarding the test-retest reliability, the GE scanner showed excellent correlation (ICC = 0.961), while the Philips (ICC = 0.671) and Siemens (ICC = 0.726) scanners showed relatively good correlation. The DMN pattern of the subjects between the two sessions for each scanner and between three scanners showed the identical patterns of functional connectivity. The inter-vendor and test-retest reliabilities of RS-fMRI using different 3 T MR scanners are good. Thus, we suggest that RS-fMRI could be used in multicenter imaging studies as a reliable imaging marker. © 2017 Elsevier Inc. All rights reserved.
URI
https://pr.ibs.re.kr/handle/8788114/4064
ISSN
0730-725X
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Center for Neuroscience Imaging Research (뇌과학 이미징 연구단) > Journal Papers (저널논문)
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