Title :
Parameter estimation of fMRI time-series using frequency analysis
Author :
Choo, Keng Wah ; Rajapakse, Jagath C.
Author_Institution :
Sch. of Eng., Nanyang Polytech., Singapore
Abstract :
Frequency domain analysis of event-related and block-design functional MR imaging (fMRI) time-series is presented, assuming a linear model of fMR response. The frequency domain least-square estimation is performed in order to evaluate hemodynamic parameters of the brain. The usefulness and limitations of the frequency domain analysis of fMRI time-series are highlighted.
Keywords :
biocomputing; biomedical MRI; brain; frequency-domain analysis; haemodynamics; least mean squares methods; parameter estimation; time series; brain; event related time series; frequency domain analysis; functional MRI time series; hemodynamic parameters; least square estimation; linear model; magnetic resonance imaging; parameter estimation; Biological system modeling; Brain modeling; Frequency domain analysis; Frequency estimation; Hemodynamics; Magnetic fields; Magnetic resonance; Magnetic resonance imaging; Parameter estimation; Time series analysis;
Conference_Titel :
Control, Automation, Robotics and Vision, 2002. ICARCV 2002. 7th International Conference on
Print_ISBN :
981-04-8364-3
DOI :
10.1109/ICARCV.2002.1234959
