**5.1 Theranostics: Nuclear Medicine Imaging**

The Nuclear Medicine Imaging approach is revolutionized by use theranostics [targeted therapeutic (Rx) + companion diagnostic (DX)] to establish tools for specific molecular targeting. It provides personalized treatment plan for the patient by targeting specific targets. Various department of nuclear science can utilize theranostic agents [26].

**Figure 2.** *Theranostics working on tumor cell.*
