Radio-nuclides Chemical Nature Half life Decay Mode Principal g energy (keV) (Intensity %) Applications References 90Y   64.1h b- - Radioimmunotherapy of cancer, adjuvant to chemotherapy and bone seeking agent for bone marrow ablation 6   DTPA       Intra-vascular radionuclide therapy (IVRANT) 8 89Zr   78.4h e 909.1 (99.01%) Antibody labelling and PET imaging 13 99mTc   6.01h IT, b- 0.004 140.5 (87.2%) SPET and labelling of leucocytes   59   CAP       Monitoring of progression or regression of tumor during radiation therapy   48   Apcitide       Detection of acute deep vein thrombosis 49     Tetra-   cycline         Detection of infarcts and determination of its size   24     Bleo-mycin         Scintigraphic visualisation of malignant tumours   29     DTPA         Scintigraphy of kidney   31     Stannous phylate         Hepatic imaging agent   32     Sulfide colloid           Liver spleen scanning agent   33     Tetro- fosmin           Myocardial perfusion  imaging and tumor seeking agent   22     MIBI         Imaging of myocardium     72     Fosfo-mycin         Renal agent   53     HAS         Static and dynamic imaging of vascular spaces   65     Penicilla-mine         Potentially useful cholescintigraphic agents   68   103Ru     39.26d   b-   497.05 (88.7%)   Scintigraphy of patients with various types of malignant tumours   83     Ruthenium Red         Employed in histochemistry due to its affinity towards mucopolysaccharides and tumour scanning agent   83   97Ru   DTPA   2.9d   e   215.70 (86.0)   Cerebrospinal fluid imaging agent   82     PIPIDA         Hepatobiliary diagnostic agent   77     Mono-clonal antibodies         Radioimmunotherapy   76, 78     Bleo-mycin         Cancer chemotherapeutic agent   79     Trans-ferrin         Diagnosis of tumours   79     DISIDA         Liver Imaging 81   111Ag     7.45d   b-   342.08 (6.7)   Radioimmunotherapy   93   109Cd     462d   e   88.03 (3.6)   Source of x- radiation, Long term metabolic studies   96, 97   107Cd     6.50h   e   93.1 (4.7)   Short term metabolic studies   97

Table 1: Applications of various radionuclides of Second Transition Series elements in Nuclear Medicine.