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Fig. 7A —Large 73-year-old woman with lymphoma. Coronal CT (left),
PET (middle), and coregistered PET/CT (right) images
obtained before (A) and after (B) truncation correction.
Truncation artifact affects soft tissue only, and truncated area on CT shows
rim of increased attenuation value with corresponding decrease in
18F-FDG activity concentration. Before truncation correction,
maximum standard uptake (SUV) value of soft tissue was 0.32 (arrow,
A), and after truncation correction, maximum SUV was 0.79
(arrow, B)—an increase of 147%.
