The presence of the following excludes subjects from the study: (All answers must be "NO" for subject to be eligible.)

1. Subject is a pregnant or nursing female. Exclude the possibility of pregnancy:

* By testing (serum or urine βHCG) within 24 hours before contrast agent administration, or

* By surgical sterilization, or

* Post-menopausal, with minimum one (1) year history without menses.

2. Subject has impaired renal function (eGFR\<30 mL/min).

3. Subject has an acute psychiatric disorder or is cognitively impaired.

4. Subject is using or is dependent on substances of abuse.

5. Subject is unwilling to comply with the requirements of the protocol.

6. Subject has an allergy against iodinated contrast agents and cannot be premedicated.

7. Subject is in acute unstable condition.

PET-DECT for Staging and Imaged Based Radiotherapy Planning in Lung Cancer