Method for flow reconstruction from dynamic X-ray projection measurements

3D rotational X-ray imaging is currently most widely applied for the visualization of complex vessel structures and malformations. In addition to the static 3D information, the time-dependent contrast agent wave propagation can be derived using an additional projection series and a corresponding reconstruction. A stabilized flow reconstruction method is presented, which enables the visualization of the contrast agent propagation in 3D. It is based on the framework of linear programming and is a global optimization scheme for a complete vascular tree. A new approach to add a smoothness constraint is presented.