Patients undergo different types of scanning procedures to produce detailed images of potential cancer growth. Depending on the cancer, physicians may use MRI, mammography, CT, PET/CT or other technologies.
While some of these procedures use only x-rays or radio waves to create images, a PET/CT scan uses a combination of traditional x-rays and computer imaging. A radioactive substance similar to glucose is given to the patient, and because cancer cells tend to use more glucose than normal cells, PET/CT scans can help detect the biological activity of those cancer cells.