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Fig. 2D —71-year-old man with non–small cell lung cancer after
pneumonectomy presenting with nodal and hepatic metastases. Attenuation
correction performed using unenhanced CT (A–C),
(G–I) and IV contrast-enhanced CT (D–F),
(J–L). Axial images show slight perceived visual increase in
18F-FDG in node (arrows) when images are reconstructed
with IV contrast-enhanced CT. Mean (maximum) SUV values of lymph node were
3.75 (5.1), an increase of 5% compared with A–C. Note mediastinal
background 18F-FDG activity is similar compared with
A–C and quality of PET image is not compromised when IV
contrast-enhanced CT is used for attenuation correction. D, IV
contrast-enhanced chest CT.
