Radiopharmaceuticals are compounds that are used for medical imaging and therapeutics Table 32.1 lists certain diagnostic uses of radiopharmaceuticals including the isotope and activity typically used in diagnostics

One common imaging device is the Anger camera, which consists of a lead collimator, radiation detectors, and an analysis computer Tomography performed with γ -emitting radiopharmaceuticals is called SPECT and has the advantages of x-ray CT scans coupled with organ- and function-specific drugs

biological effects of ionizing radiation — due to two effects it has on cells: interference with cell reproduction, and destruction of cell function. Anger camera — a common medical imaging device that uses a scintillator connected to a series of photomultipliers. rad — the ionizing energy deposited per kilogram of tissue. radiopharmaceutical — compound used for medical imaging.