radiotracer method
Quick Summary
The radiotracer method in medicine utilizes radioactive isotopes as tracers. These isotopes are chemically identical to stable isotopes of the same element, allowing them to participate in physiological processes. Their radioactivity enables detection in minute quantities using specialized devices.12
Key applications include:
* Diagnosis: Radioisotopes like iodine-131 help measure cardiac output, plasma volume, and thyroid gland activity. Phosphorus-32 aids in identifying malignant tumors, and technetium-99m is used for studying organ anatomy. Imaging techniques like SPECT and PET capture the emitted radiation to assess organ function and blood flow.12
* Therapy: Radioisotopes such as cobalt-60 and cesium-137 are used in radiotherapy to treat cancer by destroying targeted cells with ionizing radiation.12
Radioisotopes typically have short half-lives, minimizing potential harm to patients.2
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