1. Method for reconstructing an image obtained from peak kilovoltage (kVp) switched imaging of a body, comprising a data processor for: acquiring a plurality of images at a first kVp defining a first image scan and a plurality of images at a second kVp defining a second image scan, wherein the plurality of images at the first kVp are acquired interleaved with the plurality of images of the second image scan; reconstructing an image from the first and second image scan, comprising determining at least one gradient location defining an edge between areas with lower and higher attenuation with respect to each other for at least one image in the first image scan and one image in the second image scan; determining divergent gradient locations for which the gradient locations do not coincide spatially in respect of a same part of the body for said at least one image in the first and second image scans; tagging each divergent gradient location as an undersampling artifact; and generating the reconstructed image from the at least two images in the first and second image scans by correcting for each tagged undersampling artifact.