| 摘要 |
The invention relates to a method of reconstructing the current flow, or the bolus arrival times, in a vessel system ( 6 ). For the sections (i) of the vessel tree ( 6 ), bolus arrival times (m<SUB>i</SUB>) are measured, for example in connection with an injection of contrast medium. Based on this measured data, linear programming is then used to calculate model bolus arrival times (t<SUB>i</SUB>), which, on the one hand, through minimization of the function E=Sigma|m<SUB>i</SUB>-t<SUB>i</SUB>|, are as close as possible to the measured data, and, on the other, by adherence to the boundary condition Delta<SUB>i</SUB>=t<SUB>i</SUB>-t<SUB>p(i)</SUB>>=0, ensure the monotony of the propagation, wherein p(i) is the index of the vessel section in front of vessel section (i). Preferably, as smooth as possible a progression is compelled by means of an additional minimization of E<SUB>m</SUB>=Sigma|t<SUB>i</SUB>''|
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