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Conference papers
Variational Physiologically Informed Solution to Hemodynamic and Perfusion Response Estimation from ASL fMRI Data
Abstract : Functional Arterial Spin Labeling (fASL) MRI can provide a quantitative measurement of cerebral blood flow. A joint detection-estimation (JDE) framework has been considered to extract task-related perfusion and hemodynamic responses not restricted to canonical response function shapes. In this work, we provide a variational expectation-maximization (VEM) algorithm for hemodynamic and perfusion responses estimation. This approach provides a lower computational load compared to previous attempts, and facilitates the incorporation of prior knowledge and constraints in the estimation. Validation on simulated and real data sets has been performed.
Cited literature [13 references]
https://hal.archives-ouvertes.fr/hal-01249015
Contributor : Aina Frau-Pascual <>
Submitted on : Thursday, January 7, 2016 - 2:15:52 PM
Last modification on : Thursday, May 28, 2020 - 9:16:02 PM
Document(s) archivé(s) le : Friday, April 8, 2016 - 1:03:10 PM
Contributor : Aina Frau-Pascual <>
Submitted on : Thursday, January 7, 2016 - 2:15:52 PM
Last modification on : Thursday, May 28, 2020 - 9:16:02 PM
Document(s) archivé(s) le : Friday, April 8, 2016 - 1:03:10 PM
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prni15_af_ff_pc.pdf
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