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Automatic identification of resting state networks: An extended version of multiple template-matching
Guaje, Javier; Molina, Juan; Rudas, Jorge et al.
2015In Proceedings of SPIE: The International Society for Optical Engineering, 9681, p. 96810
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Keywords :
ICA; RSN; Automation; Bioinformatics; Brain; Independent component analysis; Information science; Magnetic resonance imaging; Artifact detection; Automatic identification; Functional magnetic resonance imaging; Independent component analysis(ICA); Multiple template matching; Pathological conditions; Resting state; Template matching
Abstract :
[en] Functional magnetic resonance imaging in resting state (fMRI-RS) constitutes an informative protocol to investigate several pathological and pharmacological conditions. A common approach to study this data source is through the analysis of changes in the so called resting state networks (RSNs). These networks correspond to well-defined functional entities that have been associated to different low and high brain order functions. RSNs may be characterized by using Independent Component Analysis (ICA). ICA provides a decomposition of the fMRI-RS signal into sources of brain activity, but it lacks of information about the nature of the signal, i.e., if the source is artifactual or not. Recently, a multiple template-matching (MTM) approach was proposed to automatically recognize RSNs in a set of Independent Components (ICs). This method provides valuable information to assess subjects at individual level. Nevertheless, it lacks of a mechanism to quantify how much certainty there is about the existence/absence of each network. This information may be important for the assessment of patients with severely damaged brains, in which RSNs may be greatly affected as a result of the pathological condition. In this work we propose a set of changes to the original MTM that improves the RSNs recognition task and also extends the functionality of the method. The key points of this improvement is a standardization strategy and a modification of method's constraints that adds flexibility to the approach. Additionally, we also introduce an analysis to the trustworthiness measurement of each RSN obtained by using template-matching approach. This analysis consists of a thresholding strategy applied over the computed Goodness-of-Fit (GOF) between the set of templates and the ICs. The proposed method was validated on 2 two independent studies (Baltimore, 23 healthy subjects and Liege, 27 healthy subjects) with different configurations of MTM. Results suggest that the method will provide complementary information for characterization of RSNs at individual level. © 2015 SPIE.
Disciplines :
Neurosciences & behavior
Author, co-author :
Guaje, Javier;  Computer Science Department, Universidad Nacional de Colombia, Bogotia, Colombia
Molina, Juan;  Computer Science Department, Universidad Central de Colombia, Bogotia, Colombia
Rudas, Jorge;  Computer Science Department, Universidad Nacional de Colombia, Bogotia, Colombia
Demertzi, Athina  ;  Université de Liège - ULiège > Centre de recherches du cyclotron
Heine, Lizette ;  Université de Liège - ULiège > Centre de recherches du cyclotron
TSHIBANDA, Luaba ;  Centre Hospitalier Universitaire de Liège - CHU > Service médical de radiodiagnostic
Soddu, Andrea ;  Université de Liège - ULiège > Centre de recherches du cyclotron
Laureys, Steven  ;  Université de Liège - ULiège > GIGA : Coma Group
Gómez, Francisco;  Computer Science Department, Universidad Central de Colombia, Bogotia, Colombia
Language :
English
Title :
Automatic identification of resting state networks: An extended version of multiple template-matching
Publication date :
2015
Event name :
11th International Symposium on Medical Information Processing and Analysis, SIPAIM 2015
Event date :
17 November 2015 through 19 November 2015
Audience :
International
Journal title :
Proceedings of SPIE: The International Society for Optical Engineering
ISSN :
0277-786X
eISSN :
1996-756X
Publisher :
International Society for Optical Engineering, Bellingham, United States - Washington
Volume :
9681
Pages :
96810V
Peer reviewed :
Peer reviewed
Name of the research project :
Project “Caracterizacion de interacciones entre redes de descanso en pacientes con desordenes de conciencia”
Funders :
UC - Universidad Central de Colombia [CO]
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
JSMF - James S McDonnell Foundation [US-MO] [US-MO]
ASE - Agence Spatiale Européenne [FR]
MSF - Mind Science Foundation [US-TX] [US-TX]
FWB - Fédération Wallonie-Bruxelles [BE]
UET - Université Européenne du Travail [BE]
FERB - Fondazione Europea Ricerca Biomedica [IT]
CHU Liège - Centre Hospitalier Universitaire de Liège [BE]
CE - Commission Européenne [BE]
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