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.
Contrast Dye (used in some diagnostic tests such as MRIs) Some medical tests called imaging tests contain a type of dye called contrast dye.. Examples of imaging tests are MRIs and CT-scans. Contrast dyes can be harmful to people who have kidney disease. Not all imaging tests contain contrast dyes.