special subjects
Angiography
Disadvantages of Angiography
For some people, angiography is uncomfortable. In a few people, Allergic-type contrast reactions to the contrast agent occur. The injection site may bleed, become infected, or be painful. Rarely, the catheter damages a blood vessel. Serious complications, such as Shock , The risk of complications is higher in older adults, although it is still low. The Risks of Radiation in Medical Imaging used in angiography varies depending on the procedure but typically is much higher than in x-ray tests. For example, the radiation dose in coronary angiography is 350 to 750 times as much as that used in a single-view x-ray of the chest. Angiography is not always readily available. It must be done by highly skilled doctors. 