For the first time, a team of researchers from the Institute of Physics for Medicine has succeeded in mapping the blood flow of an entire organ in animals (heart, kidney and liver) with great precision in four dimensions: 3D + time. This new imaging technique, when applied to humans, could both improve our understanding of the circulatory system (veins, arteries, vessels and lymphatic system) and facilitate the diagnosis of certain blood circulation-related conditions. These findings have been published in Nature Communications.