gms | German Medical Science

Figure

Figure 4: 53-year-old male with right sided cancer of the tonsil and histologically proven lymph node metastasis in the right neck level II (big lymph node) and two smaller lymph node metastases in level III (black circle). Standard reconstructions of the PET data with 3 iterations, 24 subsets, Gaussian filter 3 mm FWHM (Fig. 4a on the left side) and TOF reconstruction 3 mm with 3 iterations and 21 subsets (Fig. 4b on the right side). The 2 small lymph node metastases in the right neck level III appear with more sharply bounded outline and less blurring in the TOF reconstruction.