1. An angiographic examination method for representation of flow properties of vessels of an object under examination, comprising: acquiring at least one 4-D DSA sequence; generating time-dependent volume data sets by a measurement-based 4-D DSA method based on the at least one 4-D DSA sequence; determining time-dependent volume data sets by a model-based method using a CFD-based interpolation over time within at least one time interval from t j to t j+1 , which lie between the time-dependent volume data sets determined by the measurement-based 4-D DSA method in terms of time, wherein the measurement-based 4-D DSA method uses an object specific image acquired as input, and wherein the CFD-based interpolation over time is performed with simplifying and generalizing model assumptions; combining the time-dependent volume data sets determined by the measurement-based 4-D DSA method and the time-dependent volume data sets determined by the model-based method; and determining the flow properties of vessels of the object based on the combined time-dependent volume data sets, wherein the combined time-dependent volume data sets is used in the examination which quantifies blood flow in the vessel with temporal resolution.