Rocco Gasteiger successfully defended his PhD thesis on Visual Exploration of Cardiovascular Hemodynamics with summa cum laude at 07 February 2014. Rocco developed methods for expressive renderings of blood flow vessels with embedded flow information, to quantify the flow with respect to the inflow jet and the impingement zone in cerebral aneurysms as well as new exploration techniques, such as his FlowLens. During his PhD he collaborates very effectively with members from the group of Visual Computing, the Institute of Neuroradiology at the university hospital of Magdeburg, the Institute of Fluid Dynamics and Thermodynamics, the Department of Biomedical Magnetic Resonance as well as the Department of BioMedical Engineering at the Technical University of Eindhoven. Some visual impressions from the defense ceremony and party can be found here.