The EXINI products are based on four cornerstones: expert knowledge of nuclear medicine, image processing, artificial neural networks, and large image databases. For each product we bring in nuclear medicine experts with its knowledge and experience in that type of images, develop new image processing algorithms for the specific type of images, train new artificial neural networks and all based on new large databases with images. The close collaboration between the developers at EXINI diagnostics, researchers in university departments and physicians working with our products or testing our prototypes in a clinical setting are important for the successful development of our products.