Patients undergo iodine I-124 NM404 CT/PET scan at 1-2, 4-6, 24, and 48 hours and at 5-10 days.

I-124-NM404

The objective of this protocol is to obtain preliminary data on imaging NSCLC tumors. Images with 124I-NM404 will be evaluated by a nuclear medicine consultant, who will be blind to the participants' clinical findings and other radiographic images. The nuclear medicine consultant will independently record his findings, and then compare his results with those obtained by conventional FDG-PET imaging that was done at baseline as part of this study. This comparison will be only qualitative.

Images will be evaluated by physician who will be blinded to the participants' clinical or CT findings. The physician will score scans at the various time points for intensity of tumor uptake. A typical 0-3 scale will be used: 0 = no perceptible uptake, 1+ = uptake barely perceptible above background, 2+ = uptake clearly distinguishable above background, 3+ = intense uptake, much greater than surrounding normal structures (2+ and 3+ are considered abnormal or positive for lesion identification; 0 and 1+ are considered normal or negative for lesion identification).