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ElePhant--an anatomical electronic phantom as simulation-system for otologic surgery.

R Grunert¹, G Strauss, H Moeckel

¹Innovation Center Comput. Assisted Surg. (ICCAS), Leipzig Univ., Germany.

Conference Proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference

|October 20, 2007

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The ElePhant (Electronic Phantom) system uses 3D-printed anatomical models for realistic Mastoidectomy surgical simulation. Surgeons found the system highly effective for training and practicing otologic interventions.

Area of Science:

Medical Simulation
Surgical Training
3D Printing Technology

Background:

Mastoidectomy is a complex otologic surgery requiring precise anatomical knowledge.
Current simulation methods may lack anatomical accuracy and realistic tactile feedback.
Advancements in 3D printing offer potential for creating patient-specific surgical phantoms.

Purpose of the Study:

To describe the development and validation of the ElePhant (Electronic Phantom) system for Mastoidectomy simulation.
To assess the anatomical accuracy and surgical realism of the 3D-printed phantom.
To evaluate the system's utility for training Ear, Nose, and Throat (ENT) surgeons.

Main Methods:

Utilized 3D rapid prototyping technology (RPT) to create plaster-based anatomical head models.

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Integrated electrically conductive materials and fiber optics to represent critical structures as an electric circuit.

Conducted an accuracy study comparing RPT models to CT datasets and an evaluation study with ENT surgeons.

Main Results:

The RPT models achieved a mean accuracy within the CT layer thickness of 0.5 mm.
Surgeons rated the ElePhant system highly (mean score +1.2) for realism in anatomical representation, surgical setting, and bone milling properties.
The system demonstrated suitability for simulating anatomical structures and providing a realistic operational environment.

Conclusions:

The ElePhant system provides a realistic and accurate simulation for Mastoidectomy.
It serves as a valuable tool for training ENT surgeons, enhancing their understanding of anatomy and surgical procedures.
The integration of RPT and electronic components offers a novel approach to surgical phantom development.