Benjamin Köhler has submitted his Phd thesis on the visual exploration and analysis of cardicac blood flow. In his thesis, Ben developed BloodLine, a comprehensive tool to preprocess and visualize 4D PC-MRI data with vortex detection, robust quantification of flow features, such as flow rate. BloodLine was developed in close cooperation with the Heart center Leipzig and is regularly used there. Ben’s work is truly application-oriented and resulted in several prices including the MedVis-Award and the Eurographics Medical Price. Ben will stay with us and continue in the recently approved DFG project; extending BloodLine such that larger studies can be more efficiently analyzed.