What is PET/CT?
Positron Emission Tomography (PET) captures images of miniscule changes in the body’s metabolism caused by the growth of abnormal cells. A PET scan can detect abnormalities in cellular activity generally before there is any anatomical change.
Computed Tomography (CT) uses x-rays and a computer to make detailed images of sections of the body’s internal structure. A CT scan shows your body’s organs, bones and tissues in great detail (size and location of the tumor, mass, etc.).
Overall, a PET scan provides metabolic detail (cellular activity of the tumor, mass, etc.). CT scans yield sharp anatomic images but don’t show physiologic activity. Fusion of PET and CT images provide the oncology team with the best understanding of how to best treat you and whether or not your current treatment is working.