DEMONSTRATION
3D – Computer Animations in Cardiac Surgery: Simulation of a Virtual Heart Lung Machine
P.
Engels, C. Schmitz, F. Lewark, and H.O. Vetter
Department
of Cardiothoracic Surgery, University of Witten/Herdecke,
Wuppertal/Germany
ABSTRACT:
Objectives:
In May 1953 Mary and John Gibbon (1) introduced the „heart lung machine“ to open-heart surgery. Before achieving this milestone several experimental perfusion systems were invented and tested. (2). In the following years a lot new technical developments increased the benefits of the „heart lung machine“ for patients and made the procedure to a save standard method in cardiac surgery.
Nowadays computersimulations are a standard method in medicine, and have gained importance especially in surgical simulations and education (3).
Therefore our aim is to present a simulation of a virtual heart lung machine for a better understanding of its function.
Methods:
To achieve this target a 3D raytracer (4) program was used. With splineobjects, Boolean operations, nurbs and other tools models of the different parts of the heart lung machine were created. Surface textures were designed with 2D programs (5). The raytraced and rendered videos were compressed to mpeg I and presented in an interactive form via the web. (6)
Results:
The model of a virtual heart lung machine simulates cardiopulmonary bypass. Different possible methods of perfusion, oxygenation, cannulation and hypothermia can be demonstrated.
Conclusion:
The presented 3D model of the heart lung machine allows a good understanding of the complexity of cardiac perfusion. Special situations during cardiopulmonary bypass can be simulated. This simulation is a helpful tool for medical education of different usergroups like medical students, young medical doctors, perfusionists, or patients who want to inform themselves. The model can be presented via the net.
BENEFIT TO PARTICIPANTS ATTENDING SESSION:
1.
3D Computer simulation
2. Simulation of a virtual heart-lung machine
3. Online available via: http://www.vhlm.com
P.
Engels
Private:
Dr. Peter Engels
Ackerstr. 1
D-47239 Duisburg-Rumeln
Germany
Phone: +49(0)2151407242
Email: dr.engels@debitel.net
Website: http://www.vhlm.com
CO-AUTHORS:
C. Schmitz
F. Lewark
H.O. Vetter
Department of Cardiothoracic Surgery, University of Witten/Herdecke, Wuppertal/Germany
Phone: +49(0)2028960
Website: http://www.herzzentrum-wuppertal.de
References: (Literature)
(1)
Gibbon JH Jr: Application of a mechanical heart and lung apparatus in
cardiac surgery. Minn Med 1954; 37:171
(2)
Zimmer HG, „Perfusion of isolated organs and the first heart-lung
machine.“ Can J Cardiol 2001 Sep; 17 (9): 963 – 9
(3) Satava
RM, „ Surgical education and surgical simulation.“ World J Surg 2001 Nov; 25
(11): 1484 –9
(4) www.maxon.de
(5) www.adobe.com;
www.corel.com
(6) www.vhlm.com
email:
dr.engels@debitel.net
net: www.vhlm.com
(virtual heart
lung machine)