Intra-operative 3D micro-coil imaging using subsampled tomographic acquisition patterns on a biplane C-arm system

Abstract : The restriction of CBCT to micro-coil imaging allows for integrating key a priori knowledge that a coil is a high-density spatially sparse curvilinear structure. In this paper, we investigate acquisition patterns specifically designed for biplane systems allowing a faster workflow and reduced dose. Each pattern is a subsampling of a standard tomographic acquisition reconstructed with an 1-constrained algorithm to promote sparsity together with diffusion filters that promote the curvilinear nature of the coil. Three tensor-based 3D diffusion filters are investigated. Quantitative and qualitative results are provided for one coil and four patients datasets. They show how the reconstruction performs according to the selected acquisition pattern (uniform versus non-uniform subsampling), the quantity of missing information and the selected diffusion filter. We observed a systematically better recovery of the coil in reconstructions obtained using a uniform subsampling pattern but at the cost of being systematically noisier than those obtained with a non-uniform subsampling pattern. Diffusion filtering significantly reduced this structural noise.
Type de document :
Communication dans un congrès
Proceedings of the 4th International Conference on Image Formation in X-Ray Computed Tomography (CT meeting'16), Jul 2016, Bamberg, Germany
Liste complète des métadonnées

Littérature citée [3 références]  Voir  Masquer  Télécharger

https://hal.inria.fr/hal-01303153
Contributeur : Erwan Kerrien <>
Soumis le : samedi 16 avril 2016 - 11:19:40
Dernière modification le : vendredi 30 mars 2018 - 10:02:04
Document(s) archivé(s) le : mardi 15 novembre 2016 - 04:55:07

Fichier

ctmeeting_2016_charlotte_delma...
Fichiers produits par l'(les) auteur(s)

Identifiants

  • HAL Id : hal-01303153, version 1

Collections

Citation

Charlotte Delmas, Cyril Riddell, Yves Trousset, Erwan Kerrien, Marie-Odile Berger, et al.. Intra-operative 3D micro-coil imaging using subsampled tomographic acquisition patterns on a biplane C-arm system. Proceedings of the 4th International Conference on Image Formation in X-Ray Computed Tomography (CT meeting'16), Jul 2016, Bamberg, Germany. 〈hal-01303153〉

Partager

Métriques

Consultations de la notice

283

Téléchargements de fichiers

118