Stereolithographic biomodelling in surgery

D'Urso, Paul Steven. (1998). Stereolithographic biomodelling in surgery PhD Thesis, School of Medicine, The University of Queensland.

       
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Author D'Urso, Paul Steven.
Thesis Title Stereolithographic biomodelling in surgery
School, Centre or Institute School of Medicine
Institution The University of Queensland
Publication date 1998
Thesis type PhD Thesis
Supervisor Prof David Effeney
Dr Timothy Barker
A/Prof Iain Bruce
Total pages 313
Collection year 1998
Language eng
Subjects L
730109 Surgical methods and procedures
321029 Surgery
Formatted abstract
Stereolithographic (SL) biomodelling is a manufacturing process whereby anatomical data acquired by computed tomography (CT), magnetic resonance, and ultrasound (US) is accurately converted to an exact plastic replica using the rapid prototyping technique of SL.

Biomodelling has been precisely defined by the author "as the process of using radiant energy to capture morphological data on a biological structure and the processing of such data by a computer to generate the code required to manufacture the structure by a rapid prototyping apparatus." A biomodel is the product of this process.

This thesis has been dedicated to the investigation of the application of biomodelling to the art of surgery.

Advances in radiant energy scanning, rapid prototyping technologies, telecommunications, and computer software and hardware made the highly accurate replication of anatomical structures possible. Biomodels are the product of a cocktail of complex technologies yet remain particularly attractive to surgeons and patients because of their practicality and user friendliness in everyday practice. The transparency of the manufacturing technology invested in each biomodel matched with intuitive utility makes them a truly remarkable and exciting tool in the practice of surgery.

The potential of such a generic technology with clear medical virtues demanded further evaluation. Research has been designed and conducted with three themes:

Firstly, modification of the biomodelling manufacturing chain was conducted so that biomodels could be produced accurately within a clinically relevant time frame. This modification from CT scanning to finished biomodel includes streamlined telecommunications facilities and allows accurate (< +.7mm average error) biomodel production within twenty four hours.

Secondly, an investigation of the fundamental applications of the technology in 105 surgical cases was performed. Four primary surgical uses of biomodelling were identified and investigated as follows:

1. As a visual and tactile display medium for patients and professionals.
2. For the practical rehearsal and simulation of surgical intervention.
3. For use in the manufacture of custom prosthetics and bone grafts.
4. To provide reference in the performance of biomodel stereotaxy.

Thirdly, an assessment of the utility of the technology for surgeons and patients weis performed. Data produced from this study comparing the surgical utility of standard imaging compared with the standard imaging and a biomodel strongly supports the hypothesis that biomodels have significant utility. The protocol designed will be used in an international multi centre trial of the technology.

This study of biomodelling has validated its surgical utility and laid the foundation for the clinical dissemination of the technology. The inevitable acceptance of biomodelling in routine practice will offer significant humanitarian benefits whilst providing an umbrella for the development of further applications.
Keyword Surgery -- Data processing
Surgery, Plastic -- Data processing
Three-dimensional imaging in medicine
Orthopedic implants
Implants, Artificial
Rapid prototyping

Document type: Thesis
Collection: UQ Theses (RHD) - UQ staff and students only
 
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Created: Tue, 01 Nov 2011, 13:06:54 EST by Bekti Mulatiningsih on behalf of The University of Queensland Library