Optimized image-based soft tissue deformation algorithms for visualization of haptic needle insertion

Dirk Fortmeier*, Andre Mastmeyer, Heinz Handels

*Korrespondierende/r Autor/-in für diese Arbeit
2 Zitate (Scopus)

Abstract

Real-time surgical simulation relies on the fast computation of soft tissue deformations. In this paper, we present image-based algorithms for computing the deformations of a volumetric image during a needle insertion in real-time. The algorithms are based on diffusive and linear elastic finite difference methods as utilized in image registration. For an evaluation, the methods are compared to a finite element simulation of the pre-puncture phase of a needle insertion. Furthermore, the methods are improved and tested; contrary to our assumption, an improved diffusion based approach outperforms a linear elastic approach. The algorithms are used to perform a VR simulation of a needle insertion with visuo-haptic feedback.

OriginalspracheEnglisch
ZeitschriftStudies in Health Technology and Informatics
Jahrgang184
Seiten (von - bis)136-140
Seitenumfang5
ISSN0926-9630
DOIs
PublikationsstatusVeröffentlicht - 01.01.2013

Fingerprint

Untersuchen Sie die Forschungsthemen von „Optimized image-based soft tissue deformation algorithms for visualization of haptic needle insertion“. Zusammen bilden sie einen einzigartigen Fingerprint.

Zitieren