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.
Tests that show an image of the liver. Imaging tests can check for tumors and blocked bile ducts. They also can be used to look at liver size and blood flow through the liver. These tests include: Abdominal ultrasound. CT scan of the abdomen (including the liver, gallbladder, and spleen). MRI scan of the abdomen. Liver and spleen scan (rarely done). Other tests. Other tests also may be done to confirm cirrhosis or to look for possible complications.