Relative pressure estimation from velocity measurements in blood flows: state-of-the-art and new approaches - Inria - Institut national de recherche en sciences et technologies du numérique Access content directly
Preprints, Working Papers, ... Year : 2016

Relative pressure estimation from velocity measurements in blood flows: state-of-the-art and new approaches

Abstract

The pressure gradient across stenotic blood vessels is an important clinical index for diagnosis of the pathological severity of the cardiovascular disease. While the clinical gold standard for its measurement is invasive catheterization, Phase-Contrast MR-imaging has emerged as a promising tool for enabling a non-invasive quantification of the relative pressures, by linking the (highly spatially resolved) velocity measurements with the relative pressure via the Navier-Stokes equations. In this work we first provide a review of current methods for relative pressure estimation, propose new ones and perform a theoretical bias analysis for all of them. Finally, we compare the precision and robustness all these approaches on numerical examples using subsampled and noisy synthetic data verifying the theoretical findings.
Fichier principal
Vignette du fichier
pressdrop_preprint.pdf (884.59 Ko) Télécharger le fichier
Origin Files produced by the author(s)

Dates and versions

hal-01323289 , version 1 (30-05-2016)
hal-01323289 , version 2 (15-06-2016)

Identifiers

  • HAL Id : hal-01323289 , version 1

Cite

Cristobal Bertoglio, Rodolfo Núñez, Felipe Galarce, David Nordsletten, Axel Osses. Relative pressure estimation from velocity measurements in blood flows: state-of-the-art and new approaches. 2016. ⟨hal-01323289v1⟩
511 View
503 Download

Share

Gmail Mastodon Facebook X LinkedIn More