computed tomography (CT) magnetic resonance imaging (MRI) CT angiography uses a CT scanner to produce detailed images of both blood vessels and tissues in various parts of the body. An iodine-rich contrast material (dye) is usually injected through a small catheter placed in a vein of the arm.
An angiogram is an X-ray procedure that can be both diagnostic and therapeutic. It is considered the gold standard for evaluating blockages in the arterial system. An angiogram detects blockages using X-rays taken during the injection of a contrast agent (iodine dye).
Angiography carries the same risks as major surgery, including blood clots, cardiac arrest and infection. A CT angiograph, however, does not pose these risks, and according to a study done at Thomas Jefferson University, the CT angiography is a good alternative for people who had a stress test indicating coronary artery disease, but also have below a 50 percent chance of having significant blockage.
CIN is a rare complication and may be preventable. There are several ways to reduce the potential for damage during procedures in which contrast dyes are used. What can be done before the procedure to help protect your kidneys? Ask to have a measure of your kidney function. Your kidneys function is estimated by the glomerular filtration rate, or eGFR.
Resting and exercise radionuclide angiogram (RNA) is a type of nuclear medicine procedure. This means that a tiny amount of a radioactive substance, called a radionuclide (radiopharmaceutical or radioactive tracer), is used during the procedure to assist in the examination of the tissue under study.