A method for creating a vessel image and method for fluoroscopy of vessels and appropriately designed imaging system

摘要

The invention relates to a method for creating a selective vessel image within a volume section of an examination object by means of an imaging system (10). The method comprises the following steps: Creation of a vessel image of the volume segment with the following substeps: Capture of imaging data of the volume segment within a predetermined time interval by means of the imaging system (10). Determining a maximum opacity within the time interval due to a contrast agent administered to the examination subject per pixel of the vessel image. • Segment vessels by deciding whether each pixel belongs to a vessel, depending on the maximum opacity of the pixel. Determining a contrast agent arrival time per pixel of the vessel image. Segmenting whether the respective vessel of the vessel image belongs to a vessel of the selective vessel image when a flow area of the vessel perpendicular to the flow direction is less than a predetermined maximum size threshold and greater than a predetermined minimum size threshold and if the contrast agent arrival time of the pixels of the vessel is smaller is a predetermined maximum contrast agent arrival time threshold and greater than a predetermined minimum contrast agent arrival time threshold.