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Other tests used to stage lung cancer at diagnosis include: 1  Magnetic Resonance Imaging (MRI). A type of imaging scan that uses magnetic fields to create clear images of body parts, including tissues, muscles, nerves and bones. 2  Positron Emission Tomography (PET). A type of imaging scan that is used to tell if lung cancer has spread to other parts of the body. Cells use sugar (glucose) for energy to function and cancer usually uses more than other cells or tissues. A special sugar solution is injected into the body through a vein.
Types of X-rays and Scans. MRA (Magnetic Resonance Angiography) MRAâa type of magnetic resonance imaging (MRI) study that is obtained with the same scanning machineâuses a strong magnetic field combined with radiofrequency waves to create highly detailed images of blood vessels in the body. (MRA is most often used to examine vessels in the brain, neck, kidneys, and legs.) The resulting scans, which provide information about blood flow and the condition of blood vessel walls, may then be saved on a computer or on film and examined for abnormalities.