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.
The authors used computed X-ray tomography (CT) scans to measure calcification in the coronary arteries, aortic arch, and extracranial and intracranial carotid arteries. They also used brain MRI scans to assess cerebral infarcts, microbleeds, and WMLs, which are considered important markers of vascular brain disease.