Non-photorealistic rendering of virtual implant models for computer-assisted fluoroscopy-based surgical procedures

Zheng, Guoyan (2007). Non-photorealistic rendering of virtual implant models for computer-assisted fluoroscopy-based surgical procedures. In: Medical Imaging 2007: Visualization and Image-Guided Procedures. SPIE Proceedings: Vol. 6509 (65091Y). San Diego, CA: Proceedings of the SPIE 10.1117/12.708311

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Surgical navigation systems visualize the positions and orientations of surgical instruments and implants as graphical overlays onto a medical image of the operated anatomy on a computer monitor. The orthopaedic surgical navigation systems could be categorized according to the image modalities that are used for the visualization of surgical action. In the so-called CT-based systems or 'surgeon-defined anatomy' based systems, where a 3D volume or surface representation of the operated anatomy could be constructed from the preoperatively acquired tomographic data or through intraoperatively digitized anatomy landmarks, a photorealistic rendering of the surgical action has been identified to greatly improve usability of these navigation systems. However, this may not hold true when the virtual representation of surgical instruments and implants is superimposed onto 2D projection images in a fluoroscopy-based navigation system due to the so-called image occlusion problem. Image occlusion occurs when the field of view of the fluoroscopic image is occupied by the virtual representation of surgical implants or instruments. In these situations, the surgeon may miss part of the image details, even if transparency and/or wire-frame rendering is used. In this paper, we propose to use non-photorealistic rendering to overcome this difficulty. Laboratory testing results on foamed plastic bones during various computer-assisted fluoroscopybased surgical procedures including total hip arthroplasty and long bone fracture reduction and osteosynthesis are shown.

Item Type:

Conference or Workshop Item (Paper)

Division/Institute:

04 Faculty of Medicine > Pre-clinic Human Medicine > Institute for Surgical Technology & Biomechanics ISTB [discontinued]

UniBE Contributor:

Zheng, Guoyan

Subjects:

500 Science > 570 Life sciences; biology
600 Technology > 610 Medicine & health

Series:

SPIE Proceedings

Publisher:

Proceedings of the SPIE

Language:

English

Submitter:

Factscience Import

Date Deposited:

04 Oct 2013 14:57

Last Modified:

28 Nov 2019 12:51

Publisher DOI:

10.1117/12.708311

Web of Science ID:

000247294800069

URI:

https://boris.unibe.ch/id/eprint/24209 (FactScience: 47461)

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