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.
Originalsprache | Englisch |
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Zeitschrift | Studies in Health Technology and Informatics |
Jahrgang | 184 |
Seiten (von - bis) | 136-140 |
Seitenumfang | 5 |
ISSN | 0926-9630 |
DOIs | |
Publikationsstatus | Veröffentlicht - 01.01.2013 |