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Algorithm for haptic rendering of reconstructed 3D solid organs

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International Journal of Computer Assisted Radiology and Surgery Aims and scope Submit manuscript

Abstract

Purpose

The use of haptic (the sensing of touch) technology as an interactive tool for new diagnostic procedures is an important and interesting goal because of the potential benefits.

Materials and methods

We developed an algorithm for integration of haptic sensing in a medical 3D visualization environment. 3D reconstructions were generated from a stack of medical preoperative images. The innovation of the presented work is the improvement on the behavior of the haptic rendering over previous algorithms. First, the tool we developed for 3D reconstruction is presented. The classical pipeline for surface 3D reconstruction is reviewed from a parametric point of view. These parameters play an important role in the analysis of the haptic behavior. In addition, all the parameters of the reconstruction are accessible and can be modified on-line during the reconstruction procedure. Next, the software architecture used for the integration of the haptic devices is described. The haptic rendering algorithm is detailed, including the collision detection algorithm (a simple ray-tracing scheme programmed using VTK) that is used with the medical images.

Results

The results obtained by evaluation of the haptic algorithm’s behavior are presented, demonstrating acceptance of the interactive tool by medical professionals.

Conclusion

An improved method for haptic sensing and interaction in a 3D medical visualization environment is feasible and promises to improve image-guided interventions and minimally invasive surgery.

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Authors and Affiliations

  1. Virtual Reality and Robotics Lab, Universidad Miguel Hernández, Elche, Spain

    J. M. Sabater, N. García, C. Pérez & J. M. Azorin

Authors
  1. J. M. Sabater
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  2. N. García
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  3. C. Pérez
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  4. J. M. Azorin
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Corresponding author

Correspondence to J. M. Sabater.

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Sabater, J.M., García, N., Pérez, C. et al. Algorithm for haptic rendering of reconstructed 3D solid organs. Int J CARS 3, 387–393 (2008). https://doi.org/10.1007/s11548-008-0240-7

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  • DOI: https://doi.org/10.1007/s11548-008-0240-7

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