Fig. 2
source and the trochanteric source (row d). Some air visible in the sources is due to incomplete filling of the tubes. Note the dark streak artefacts around the prosthesis, which largely disappear from the MAR corrected CT. White streak artefacts are mainly situated anterior and posterior to the prosthesis
PET and CT images from the phantom experiment. Results of the scam experiment are shown in the upper row. Further rows show the results of the prosthesis experiment. The two columns to the left are not corrected by MAR, those to the right are. Corresponding CT (left) and PET (right) images are given. The top two rows show coronal images; to indicate the position of the sources, which were not all in the same coronal plane, the PET images are composites of several slices. The lower rows show axial slices at the level of the lateral acetabular source (row a), the lateral neck source (row b), the medial acetabular source (row c), and the medial neck