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KISMET Medical Applications


New Additions:

Our NEW designed Virtual Endoscopic Surgery Training (VEST) system VSOne is ready !
    Read more about it here ! Last Update: JULY 10, 2001

Virtual Endoscopic Surgery Trainer for Gynaecology
    Last Update: May 09, 2001

Noninvasive Measurement of living Tissue Elastodynamics Parameters April 1999

Two Quicktime movies added to this page

KISMET Realtime Volume Rendering

Laparoscopic Surgery Trainer.

Surgery Trainer Picture Gallery.


Overview

Because of KISMETs high quality realtime graphics capabilities and additional features like geometrical and kinematical modelling, multibody-dynamics, and its database concept allowing for multiple detail-levels, it was found to be an ideal platform for computer aided surgical simulation. The software is now significantly improved to meet the specific requirements of minimally invasive surgery simulation. Using the advanced capabilities of high-performance graphical workstations combined with state-of-the-art simulation software, it is possible to generate virtual endoscopic views of surgical scenarios with high realism. KISMET has proved its unique capabilities in endosurgery simulation in a number of research and development activities at Forschungszentrum Karlsruhe: As a result of our initial research, we conclude that KISMET is well suited to various medical application domains:


Application Images

Karlsruhe Endoscopic Surgery Trainer (516x768 jpg, 32k)

The MIS-Trainer is described more detailed here.

You can find even more photographs of the MIS-Trainer here.

Model of Human Anatomy (639x511 gif, 190k)
Such models are used as a basis for the surgery trainer. The organs are modelled as B-Spline surfaces (modelled by DSL/Rottendburg, FRG) using the SOFTIMAGE software. The models are then converted to KISMET NURBS geometry.

Converted CT dataset of human skull (1278x1022 jpg, 133k)
Another model generation approach is the conversion of CT-, MRI-, MRA-datasets from voxel-volumes to polygonal surfaces. The skull was generated using Marching-Cubes segmentation (Lorensen et.al.). This works well for bone anatomy.

Realtime Volume Rendering
Another approach to visualize volume datasets in realtime is to use hardware supported volume rendering techniques without preliminary conversion into polyhedral surface models. The methods we use and recent results are explained in more detail on this page.

Futuristic (tele)surgery room (500x400 gif, 127k)

Endoscopic Instrument Design Support (639x511 jpg, 40k)

Elastodynamic Tissue Modelling (640x432 gif, 35k)

Endoscopic Surgery Training, Overview (639x511 jpg, 26k)
The KISMET image shows an "outside" view of the surgery trainer scenario with simulated camera view (upper left viewport). KISMET allows as well for model based camera tracking. The camera viewing area is displayed as a pyramidal shape.

Colecystectomy Training, Endo-View (639x511 jpg, 19k)


Related Publications:


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This page is maintained by Dr. U. Kühnapfel . Last modified July 10, 2001.
Feel free to send in comments and suggestions.
E-mail: Uwe.Kuehnapfel@iai.fzk.de