Definition
An ion is an atom or group of atoms that has an electric charge. Ions with a positive charge are called cations. Ions with a negative charge are called anions.
Ions can be created using radiation such as x-rays. Ionizing radiation is often used for diagnostic or therapeutic procedures, since the ions that are produced can be used to scan for or treat some diseases.
Related topics:
- Adrenal medullary imaging
- Bone scan
- Gall bladder radionuclide scan
- Gallium (ga.) scan
- Isotope study
- Liver scan
- Lung gallium (ga.) scan
- Nuclear ventriculography (MUGA or RNV)
- Pulmonary ventilation/perfusion scan
- Radioactive iodine uptake
- Radionuclide cystogram
- Renal venogram
- RHISA scan
- Thyroid scan
- WBC (nuclear) scan
Alternative Names
Cations; Anions