(April 2014) Angiography or arteriography is a medical imaging technique used to visualize the inside, or lumen, of blood vessels and organs of the body, with particular interest in the arteries, veins, and the heart chambers.
The U.S. Virgin Islands quarter is the fifth in the 2009 District of Columbia and U.S. Territories Quarters Program. These islands, located in the Caribbean Sea east of Puerto Rico, were explored by Christopher Columbus in 1493.
After almost four decades under US administration as the easternmost part of the UN Trust Territory of the Pacific Islands, the Marshall Islands attained independence in 1986 under a Compact of Free Association. Compensation claims continue as a result of US nuclear testing on some of the atolls between 1947 and 1962.