Angiography or angeiography was at first used as a representation of the weights and measures.
The radiogram or X-ray film or image of the blood arteries, veins and capillaries are known as an angiograph or an angiogram. The most widespread angiogram performed is to foresee the blood in the coronary arteries. Catheter, an elongated, thin, elastic tube is used to manage the radio contrast agent at the region to be seen. Angiography is also generally performed to spot vessel narrowing in patients with diabetic retinopathy and macular degeneration.
Angiography is a kind of X-ray that is done to figure out blood vessels in assorted parts of the body, as well as the heart, brain and kidneys. This is done to establish whether the blood vessels are unhealthy, tapered, blocked or distended.
- Peripheral angiography
- Cerebral angiography
- Pulmonary angiography
- Retinal angiography
- Coronary angiography
- Lymphangiography
- Visceral angiography
- Right heart ventriculography
- Left heart ventriculography
- Magnetic resonance angiography
- Aortography.
Coronary or cardiac angiography is an X-ray evaluation of the blood vessels or chambers of the heart to make out hindrance leading to one of the most commonly occurring diseases known as heart attack. A catheter is introduced into a blood vessel in the groin or arm region. After the area is anesthized by an anesthetic, the tip of the tube is placed in the heart or at the commencement of the arteries and a special fluid (contrast material or dye) is injected or introduced. The movement of the fluid is detectable by X-ray and the pictures that are achieved are called angiograms.
The dye or contrast material highlights the obstruction in blood flow. Evade eating or drinking anything 8 hours prior to this test. The physician should be clued-up if the patient is pregnant, sensitive to seafood or on an aphrodisiac treatment.
MRA is used to recognize ailments in the aorta and in blood vessels of the legs, kidneys and lungs. It is used in the management of heart disorders, stroke, blood vessel diseases and various other vascular diseases. The process does not causes. The magnetic field used for MRA will draw iron-containing object in the body like an intrauterine device, joint substitute, heart pacemaker, metal plate or even staples. All metallic frills such as hair pins, dental work, jewellery should be detached. The magnetic field has no damaging effects to the tissues.
Magnetic resonance imaging (MRI)
MRI is a method in which the electromagnetic energy is calculated and evaluated by a computer and particular pictures of body tissues and organs exclusive of x-rays. The images are seen on a monitor. MR angiography (MRA) is an MRI study of the blood vessels. No contrast material is utilized in this test.
MRA is less costly as compared with catheter angiography. Comprehensive or complete images of blood vessels and blood flow are attained without inserting a catheter, hence preventing arterial damage.