Patent ID: 7406148

Claim:
A method for multidimensional imaging with the aid of multirow computed tomography in which a volume scan of an examination area of a patient is performed, with an injection of a contrast medium, at a scanning speed in one scanning direction in order to reconstruct one or more images of the examination area, the multirow computed tomography being performed using a multirow detector having a plurality of detector rows, each detector row being composed of several detector elements, the method comprising: matching the scanning speed to a propagation speed of the contrast medium in the scanning direction the matching including at least one of, determining a value referring to content of the contrast medium at a respective instantaneous scanning position by reading out and evaluating measured attenuation values from the detector elements of the multirow detector, and if the value referring to the content of the contrast medium drops below a threshold value, at least temporarily reducing or increasing the scanning speed until the value referring to the content of the contrast medium is once again above the threshold value, and comparing first attenuation values of at least one leading detector row in the scanning direction at an instantaneous position of the detector row with second attenuation values that are detected directly thereafter at the same position with the aid of at least one other detector row, and if a difference between the first and second attenuation values exceeds a threshold value indicative of the arrival of the contrast medium, at least one of reducing and increasing the scanning speed until the difference is below the threshold value; wherein at least one of the determining step and comparing step is performed repeatedly during the volume scan.