The good image quality of the SPECT/CT scans with low accumulation in non-targeted tissues could also allow the application of the 177Lu-labeled NMGs 2 and 3 for imaging of CCK2R-positive neoplasms via SPECT, although other radionuclides are better suited for imaging applications because of their physical properties (e.g., 68Ga, 111In). The gene discussed is CCKBR; the disease is neoplasm.