Registration evaluation of dynamic breast MR images
Andrew Mehnert, Pascal Bamford, Andrew P. Bradley, Stephen Wilson, Ben Appleton, Stuart Crozier, Kerry McMahon, Dominic Kennedy · Chalmers Publication Library (Chalmers University of Technology) · 2005
The interpretation of dynamic contrast-enhanced breast MR images is predicated on the assumption of minimal voxel movement during the time course of the image ac-quisition. Misalignment of the dynamic image sequence as a result of movement during image acquisition can lead to potentially misleading diagnostic conclusions. In this pa-per a new methodology is presented for assessing the de-gree of in-plane (intra-slice) movement in a dynamic image sequence. The method is demonstrated on data from six sub-jects. The conclusion is that the method makes it possible to quantitatively qualify the accuracy of computed enhance-ment curves and more importantly to identify unacceptably poor registration. 1.