Absorptiometria

Absorptiometria is a medical imaging technique used to visualize the distribution of a radiopharmaceutical within the body. It is commonly employed in nuclear medicine to assess various physiological and pathological processes. The procedure involves the administration of a radioactive tracer, which is taken up by specific organs or tissues. The tracer emits gamma rays, which are detected by a gamma camera. The resulting images provide information about the uptake, distribution, and function of the targeted organ or tissue.

Absorptiometria is particularly useful in diagnosing and monitoring conditions such as thyroid dysfunction, bone metabolism disorders, and cardiovascular diseases. For example, in thyroid imaging, a radioactive isotope of iodine is administered, and the gamma camera captures images of the thyroid gland to detect abnormalities. In bone scans, a radiopharmaceutical is used to assess bone health and detect conditions like osteoporosis or bone tumors.

The technique offers several advantages, including high sensitivity, the ability to provide functional information, and the use of non-invasive methods. However, it also has limitations, such as the potential for radiation exposure and the need for specialized equipment and trained personnel. Despite these considerations, absorptiometria remains a valuable tool in modern medical diagnostics and treatment planning.