Random Calibration for Accelerating MR-ARFI Guided Ultrasonic Focusing in Transcranial Therapy

Na Liu 1, * Antoine Liutkus 2, 1 Jean-François Aubry 1 Laurent Marsac 3 Mickael Tanter 1 Laurent Daudet 1
* Auteur correspondant
2 PAROLE - Analysis, perception and recognition of speech
Inria Nancy - Grand Est, LORIA - NLPKD - Department of Natural Language Processing & Knowledge Discovery
Abstract : Transcranial focused ultrasound is a promising therapeutic modality. It consists in placing transducers around the skull and emitting shaped ultrasound waves that propagate through the skull and then concentrate on one particular location within the brain. However, the skull bone is known to distort the ultrasound beam. In order to compensate for such distortions, a number of techniques have been proposed recently, for instance using Magnetic Resonance Imaging (MRI) feedback. In order to fully determine the focusing distortion due to the skull, such methods usually require as many calibration signals as transducers, resulting in a lengthy calibration process. In this paper, we investigate how the number of calibration sequences can be signicantly reduced, based on random measurements and optimization techniques. Experimental data with six human skulls demonstrate that the number of measurements can be up to three times lower than with the standard methods, while restoring 90% of the focusing eciency.
Type de document :
Article dans une revue
Liste complète des métadonnées

Littérature citée [43 références]  Voir  Masquer  Télécharger

https://hal.inria.fr/hal-01104616
Contributeur : Antoine Liutkus <>
Soumis le : dimanche 18 janvier 2015 - 13:13:17
Dernière modification le : mercredi 21 mars 2018 - 18:57:44
Document(s) archivé(s) le : vendredi 11 septembre 2015 - 06:42:37

Fichier

Random Calibration for Acceler...
Fichiers produits par l'(les) auteur(s)

Identifiants

Citation

Na Liu, Antoine Liutkus, Jean-François Aubry, Laurent Marsac, Mickael Tanter, et al.. Random Calibration for Accelerating MR-ARFI Guided Ultrasonic Focusing in Transcranial Therapy. Physics in Medicine and Biology, IOP Publishing, 2015, 60 (3), pp.21. 〈http://iopscience.iop.org/0031-9155/60/3/1069/pdf/0031-9155_60_3_1069.pdf〉. 〈10.1088/0031-9155/60/3/1069〉. 〈hal-01104616〉

Partager

Métriques

Consultations de la notice

420

Téléchargements de fichiers

172