Meaning of Cylus: Cylus is a modern English respelling of the name Silas, which is a short form of the Greek name Silouanos, which is a variant of the Latin name Silvanus, which is derived from the Latin word silva, meaning wood, forest.
Overview. A positron emission tomography (PET) scan is a type of nuclear imaging test that shows the metabolic activities (energy usage) of your brain. While X-ray, CT, and MRI scans look at the anatomy of your brain, a PET scan can give your doctor information about how your brain is working.
A bone scan is an imaging test that safely uses a very small amount of radioactive dye to help diagnose problems with your bones.This test reveals problems with bone metabolism. The normal process of bone metabolism includes how bones are broken down and how they rebuild themselves.ow a Bone Scan Is Performed. The procedure begins with an injection of radioactive dye in your arm. The dye is then allowed to work its way through the body for the next two to four hours. Depending on the reason for the bone scan, your doctor may begin imaging immediately.