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This Dissertation contains an educational medium which was created for veterinary students and veterinarians alike. It deals with cardiologic content for a more precise observation of the heart valve insufficiencies of the Horse. Cardiology is an essential part of the veterinary profession and a crucial part of the overall check-up. The traditional educational methods are in need of improvement. This also applies to sonographic cardiology. The support of multimedia content is still missing while obtaining field competence. Visual educational media is necessary to learn and understand the fundamentals of cardiological examination and heart diseases. The three-dimensional observation allow a better observation and evaluation of the functions and disorders of the heart valves. This ensues through an innovative 3D-visualisation implemented in an E-Learning environment. The goal of this dissertation is to fill the gap between the veterinary education and the professional experience. To reach this goal, a virtual heart model was designed. The heart valves and blood flow animation was added, to allow different observation perspectives of the equine heart. A particle animation method was used to demonstrate blood flow and simulate heart valve insufficiencies. The heart valves where modelled with high detail for precise observation. The combination of the heart valve models and the particle animation are accurate simulations of the heart valve disorders. A physiological 3D-model was also added to allow comparison between the pathological and physiological valve movements. Echocardiography is an undeniable, reliable and well established technology and is a standard instrument in today’s veterinary cardiology. To use Echocardiography as a trustworthy instrument. It is necessary to understand the cardiac structures, functions and physiology. In this system, ultrasound sequences are displayed parallel to 3D animation and pictures. The 3D animations show alternative perspectives and are synchronizid to the ultrasound sequences. The third dimension helps to understand the two-dimensional ultrasound view. The user interface allows changes in video speed. On the lower left corner is a scalable picture of the probe's position. The user interface contains a text box. This allows the viewer to read necessary literature without leaving the video page. The sources are added to promote further reading. The most common heart valve insufficiencies and their blood flow disorders where animated to offer the necessary fundamental knowledge.