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.
Abnormal Bone Scan Results. A bone scan is a nuclear imaging test physicians use to look for areas of increased or decreased bone metabolism. Physicians often use this study in conjunction with other tests to diagnose bone infections, cancer or other degenerative bone diseases. Testing.