Are there any types of nuclear medicine that use radioactive isotopes?

Yes, many types of nuclear medicine use radioactive isotopes. Here are a few examples:

1. Technetium-99m: Technetium-99m is one of the most commonly used radioactive isotopes in nuclear medicine. It is used in a variety of diagnostic tests, including bone scans, heart stress tests, and thyroid scans. Technetium-99m has a short half-life of six hours, which means it quickly decays and does not pose a long-term radiation risk to patients.

2. Iodine-131: Iodine-131 is used to treat thyroid cancer and other thyroid disorders. It is also used in diagnostic tests, such as thyroid uptake and scan. Iodine-131 has a half-life of eight days.

3. Thallium-201: Thallium-201 is used in heart stress tests to assess blood flow to the heart muscle. It has a half-life of 73 hours.

4. Gallium-67: Gallium-67 is used to diagnose infections and inflammatory conditions, such as abscesses and pneumonia. It has a half-life of 78 hours.

5. Fluorine-18: Fluorine-18 is used in PET (positron emission tomography) scans to image various body tissues and organs. It has a half-life of 110 minutes.

These are just a few examples of radioactive isotopes used in nuclear medicine. Each isotope has specific properties and is used for different diagnostic and therapeutic purposes.