An efficient multi-stage algorithm for full calibration of the hemodynamic model from BOLD signal responses

Brian Zambri, Rabia Djellouli, Taous-Meriem Laleg-Kirati

Research output: Contribution to journalArticlepeer-review

Abstract

We propose a computational strategy that falls into the category of prediction/correction iterative-type approaches, for calibrating the hemodynamic model introduced by Friston et al. (2000). The proposed method is employed to estimate consecutively the values of the biophysiological system parameters and the external stimulus characteristics of the model. Numerical results corresponding to both synthetic and real functional Magnetic Resonance Imaging (fMRI) measurements for a single stimulus as well as for multiple stimuli are reported to highlight the capability of this computational methodology to fully calibrate the considered hemodynamic model. This article is protected by copyright. All rights reserved.
Original languageEnglish (US)
Pages (from-to)e2875
JournalInternational Journal for Numerical Methods in Biomedical Engineering
Volume33
Issue number11
DOIs
StatePublished - Apr 11 2017

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