Amanita longitibiale--A new species of Amanita section Phalloideae from central Mexico and southeastern U.S.A. Mycotaxon 54: 195-202. Tulloss, R. E. & Moses, E. (1995). Amanita populiphila--a new species from the central United States.
The catheter can be advanced into the coronary arteries and a dye injected into the arteries (coronary angiography or arteriography). With the use of fluoroscopy (a special type of X-ray), the doctor can identify blockages in the coronary arteries as the dye moves through them.
When the contrast dye is used to visualize veins, the study is called a venogram, and when it is used to visualize arteries, it is known as an arteriogram. In CT angiogram, the dye is always injected into a vein first and as the dye circulates from the veins into the arteries, images are obtained during both phases.