Study Status: Completed
Recruit Status: Completed
Study Type: Observational
Official Title: Contrast Enhanced Ultrasound for Assessment of Carotid Artery Neovascularization as a Marker of Disease Activity in Takayasu's Arteritis and Giant Cell Arteritis
Brief Summary: The purpose of this study is to evaluate the ability of contrast enhanced carotid ultrasound to serve as an indicator of disease activity in patients with Takayasu's arteritis or Giant Cell arteritis and to determine if patients with active arteritis have a thickening of their blood vessel walls compared to healthy people of the same age and gender.