Can a PET scan detect cancer in the lymph nodes?
PET scans, short for Positron Emission Tomography, can detect areas of cancer by obtaining images of the body's cells as they work. PET scans can be useful for evaluating people after breast cancer has already been diagnosed, in a number of different ways: to determine whether the cancer has spread to the lymph nodes.
Positron Emission Tomography and Computed Tomography (PET-CT) Scans. A PET scan may be combined with a CT scan at many cancer treatment centers. However, you may hear your doctor refer to this procedure just as a PET scan. A PET-CT scan is one way to find cancer and learn its stage.
- The substance is absorbed by the particular organs or tissues being examined. A PET scan can be used to detect cancerous tissues and cells in the body that may not always be found through computed tomography (CT) or magnetic resonance imaging (MRI).
- Computed Tomography (CT) Scan. A computed tomography (CT) scan, also called a CAT scan, is a diagnostic exam used to detect tumors, determine the stage of the disease and whether cancerous cells have spread, and find out about the effectiveness of cancer treatment.
- The potential health risks from radiation exposure are low compared with the potential benefits. There are no known long-term adverse effects from such low-dose exposure. Some potential side effects that might occur include: Bleeding, soreness or swelling may develop at injection site.
A positron emission tomography (PET) scan is an imaging test that helps reveal how your tissues and organs are functioning. A PET scan uses a radioactive drug (tracer) to show this activity. Often, PET images are combined with CT or MRI scans to create special views.
- This advanced nuclear imaging technique combines positron emission tomography (PET) and computed tomography (CT) into one machine. A PET/CT scan reveals information about both the structure and function of cells and tissues in the body during a single imaging session.
- Patients can eat, drink, and drive a car after having a PET scan, and will not feel sick or dizzy. Although the tracer contains a low dose of radiation, it may pose a risk to patients who are pregnant or breastfeeding. Please notify our staff if there is any chance of pregnancy before the procedure begins.
- The radiologist compares the size and distributions of these bright and dark areas to determine whether a tissue is healthy. Head and neck (Fig. 1). MRI can be used to detect brain tumors, traumatic brain injury, developmental anomalies, multiple sclerosis, stroke, dementia, infection, and the causes of headache.
Updated: 25th November 2019