UMITA (Ultrasound Medical Imaging: from Theory to Applications) is an Innovative Training Network (ITN) whose main objective will be to train researchers in a multidisciplinary environment, at the border between signal and image processing, applied mathematics, ultrasound instrumentation, clinical and industrial applications. Ultrasound (US) imaging is the gold standard technique in numerous medical applications, such as the cardiovascular or cancer diseases addressed by UMITA. However, it still suffers from several limitations including low spatial resolution and signal-to-noise ratio, low frame rate for specific applications, and huge quantity of data in 3D acquisitions. As device-related solutions based on current technologies approach their physical limitations, performance improvements can be achieved using novel post-processing techniques. Researchers with multidisciplinary skills in the fields addressed by UMITA are the solution to tackle these very challenging issues in US imaging. The early-stage-researchers (ESR) recruited by UMITA will take advantage of this unique combination of physics, mathematics, engineering and medical training. The activities of UMITA will be performed in close interaction with the industry, through the active participation of at least three companies: CAMELOT, VICOMTECH-IK4 and ESAOTE. Furthermore, clinical applications are part of this work and thus the relevant skills are brought through three clinical teams : University of Pisa, Medical team of Prof. Carlo Palombo, Cardiff University Wales Heart Research Institute, team of Prof. Alan G Fraser, and University of Lyon, Medical team of Creatis. The multidisciplinary scientific training of UMITA ESRs will be completed with complementary skills essential for their future academic or industrial careers. The workshops organized by the non-academic partners of UMITA will give them a complete view of the industrial environment. The numerous occasions to present their work (e.g., international conferences, UMITA meetings, dissemination of their results to general public) will help them to acquire high communication skills. The lectures about ethics in science provided during the summer schools organized by UMITA will give them a different perspective on how their future research will interact with our society. The meetings organized with spin off creators will allow them to understand that a balance between scientific and complementary skills is mandatory to success in their future careers. Thus, the major objective of this network is to conduct interdisciplinary research and provide training to early stage researchers (ESRs) that will allow them to develop innovative US imaging expertise associated to advanced signal and image processing techniques. Besides developing complementary skills such as scientific communication, the ESRs formed by UMITA (Ultrasound Medical Imaging: from Theory to Applications) will develop multiple expertises, in signal and image processing, US instrumentation, industrial and clinical applications. These multidisciplinary skills will allow them to address important challenges in the field of medical imaging.