A solution is proposed for imaging a body-part that is perfused with a contrast agent.A corresponding method (900) includes the step of providing (903-907) a sequenceof input images (for example, acquired with an ultrasound scanner)； the inputimages offer a digital representation over time of the body-part. Each inputimage includes a plurality of input values (i.e., pixel or voxel values)； eachinput value is indicative of a response to an interrogation signal (such as anecho signal for ultrasound waves) of a corresponding location of the body-part, whichpossibly includes the contrast agent. The method further includes the step ofgenerating (912-969) at least one filtered image from a plurality of selected onesof the input images (such as all of them or a subset thereof). Each filtered imageincludes a filtered value for each of a plurality of selected ones of the locations(for example, in a region of interest, or ROI). The filtered value of each selectedlocation is indicative of the contrast agent that leaves the selected locationafter being substantially stationary at the selected location for a period oftime, which is comprised between a first non- zero threshold and a second thresholdhigher than the first threshold (such as because the contrast agent detachesfrom the location after having been immobilized thereon, or because it was movingvery slowly). The filtered value is obtained by reducing, where present, a contributionof the contrast agent that is substantially stationary at the selected locationalong the selected input images for a period of time equal to or shorter than thefirst threshold, and by reducing a contribution of the contrast agent that issubstantially stationary at the selected location along the selected inputimages for a period of time equal to or longer than the second threshold.
