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Unveiling the Dispersion Kernel in DSC-MRI by Means of Dispersion-Compliant Bases and Control Point Interpolation Techniques

Abstract : In DSC-MRI the presence of dispersion affects the estimation, via deconvolution, of the residue function that characterizes the perfusion in each voxel. Dispersion is descibed by a Vascular Transport Function (VTF) which knolewdge is essential to recover a dispersion-free residue function. State-of-the-art techniques aim at characterizing the VTF but assume a specific shape for it, which in reality is unknown. We propose to estimate the residue function without assumptions by means of Dispersion-Compliant Bases (DCB). We use these results to find which VTF model better describes the in vivo data for each tissue type by means of control point interpolation approaches.
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https://hal.inria.fr/hal-01408170
Contributor : Marco Pizzolato <>
Submitted on : Saturday, December 3, 2016 - 12:56:23 PM
Last modification on : Thursday, January 11, 2018 - 4:48:43 PM
Long-term archiving on: : Monday, March 20, 2017 - 10:10:26 PM

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  • HAL Id : hal-01408170, version 1

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Marco Pizzolato, Rutger Fick, Timothé Boutelier, Rachid Deriche. Unveiling the Dispersion Kernel in DSC-MRI by Means of Dispersion-Compliant Bases and Control Point Interpolation Techniques. ISMRM 24th Annual Meeting, May 2016, Singapore, Singapore. ⟨hal-01408170⟩

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