While Tc-99m is the most commonly used radioisotope for medical imaging, alternative imaging agents are available. These include other radioisotopes like iodine-123 and fluorine-18, as well as non-radioactive imaging techniques such as MRI and ultrasound. The choice of imaging agent depends on the specific diagnostic needs and the balance of risks and benefits.
In conclusion, while Tc-99m is an indispensable tool in modern medicine, understanding its toxicological profile is essential for its safe and effective use. With proper handling and adherence to safety protocols, the benefits of Tc-99m in diagnostics far outweigh the potential risks.
