Nonlinear modeling of ultrasound contrast agents with Wiener series - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2006

Nonlinear modeling of ultrasound contrast agents with Wiener series

Résumé

The use of ultrasound contrast agents has been widespread in clinical echography. Since they consist of highly compressible gas microbubbles, they are ideal markers for perfusion. To predict their dynamic behaviour under ultrasound insonification, oscillation models have been developed. Current models used for the prediction of the dynamic behaviour are implemented by nonlinear differential equations. The determination of the coefficients of these differential equations is problematic because they need to be determined individually per agent per bubble size. This paper introduces ultrasound contrast agent modelling by Wiener series. To conduct the identification, a simulated contrast agent, described by a Rayleigh-Plesset model, is insonified with white noise. The resulting output is used for identification of the Wiener kernels. The Wiener model allows for an estimation of the bubble movement with a mean square error of 7.1% in relation to the reference signal.
Fichier principal
Vignette du fichier
2006 Mleczko BMT.pdf (328.82 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-03189330 , version 1 (03-04-2021)

Identifiants

  • HAL Id : hal-03189330 , version 1

Citer

Michał Mleczko, Michiel Postema, Georg Schmitz. Nonlinear modeling of ultrasound contrast agents with Wiener series. Proceedings der Ge­mein­sa­men Jah­res­ta­gung der Deut­schen, Ös­ter­rei­chi­schen und Schwei­ze­ri­schen Ge­sell­schaf­ten für Bio­me­di­zi­ni­sche Tech­nik, 2006, Zürich, Switzerland. pp.V77. ⟨hal-03189330⟩
25 Consultations
51 Téléchargements

Partager

Gmail Facebook X LinkedIn More