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 shows areas of increased or decreased bone turnover (metabolism). How the Test is Performed. A bone scan involves injecting a radioactive material (radiotracer) into a vein.The substance travels through the bloodstream to the bones and organs.As it wears away, it gives off radiation. This radiation is detected by a camera that slowly scans your body.ow the Test is Performed. A bone scan involves injecting a radioactive material (radiotracer) into a vein. The substance travels through the bloodstream to the bones and organs. As it wears away, it gives off radiation. This radiation is detected by a camera that slowly scans your body.