Figure 1From: Validation of an elastic registration technique to estimate anatomical lung modification in Non-Small-Cell Lung Cancer TomotherapyImage difference between kVCT and MVCT phase 3 in patient 4. Left: rigid registration, right: elastic registration. In this image pixel intensity is proportionally related to the degree of mismatching between images (black values matching, white values mismatching). White areas indicating mismatching between kVCT and registered MVCT image due to large pleural effusion in patient 4, were recovered by the elastic registration.Back to article page