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IVUS; Ultrasound - coronary artery; Endovascular ultrasound; Intravascular echocardiography
DescriptionA tiny ultrasound wand is attached to the top of a tiny, hollow tube called a catheter. This ultrasound catheter is inserted into an artery in your groin area and moved up to the heart.
A computer measures how the sound waves reflect off blood vessels, and changes the sound waves into pictures. IVUS gives the health care provider a look at your coronary arteries from the inside-out.
IVUS is almost always done at the end of angioplasty with stent placement, or coronary catheterization. Angioplasty gives a general look at the coronary arteries, but it cannot show the walls of the arteries. IVUS images show the artery walls and can reveal cholesterol and fat deposits (plaques). Buildup of these deposits can increase your risk of a heart attack.
IVUS has provided a lot of insight into how stents become clogged (stent restenosis).
Why the Procedure Is PerformedIVUS is commonly done to make sure a stent is correctly placed during angioplasty. It may also be done to determine where a stent should be placed.
IVUS may also be used to:
- View the aorta and structure of the artery walls (which can show plaque buildup)
- Identify which specific blood vessel is involved in aortic dissection
There is a slight risk of complications with angioplasty and cardiac catheterization. However, the tests are very safe when done by an experienced team. IVUS adds no additional risk.
In general, risks may include:
- Allergic reaction to any dye used during the test, to the stent material, or to the drug used in a drug-eluting stent
- Bleeding or clotting in the area where the catheter was inserted
- Blood clot
- Clogging of the inside of the stent (in-stent restenosis)
- Complete blockage of blood flow in a certain area
- Damage to a heart valve or blood vessel
- Heart attack
- Irregular heartbeat (arrhythmia)
- Kidney failure(a higher risk in people who already have kidney problems)
- Stroke (this is rare)
After the test, the catheter is completely removed. A bandage is placed on the area. You will usually be asked to lie flat on your back with pressure on your groin area for a few hours after the test to prevent bleeding.
If IVUS was done during cardiac catheterization, you will stay in the hospital for about 3 to 6 hours. If IVUS was done during angioplasty, you will stay in the hospital for 12 to 24 hours. The IVUS does not add to the time you must stay in the hospital.
ReferencesHartnell GG, Gates J. Ischaemic Heart disease. In: Grainger RC, Allison D, Adam, Dixon AK, eds. Diagnostic Radiology: A Textbook of Medical Imaging. 5th ed. New York, NY: Churchill Livingstone; 2008:chap 25.
Nicholson T, Patel J. The aorta, including intervention. In: Grainger RC, Allison D, Adam, Dixon AK, eds. Diagnostic Radiology: A Textbook of Medical Imaging. 5th ed. New York, NY: Churchill Livingstone; 2008:chap 27.
Popma JJ. Coronary arteriography and intravascular imaging. In: Libby P, Bonow RO, Mann DL, Zipes DP, eds. Braunwald's Heart Disease: A Textbook of Cardiovascular Medicine. 8th ed. Philadelphia, Pa: Saunders Elsevier;2007:chap 20.
What else can I help you with?
Can you hear ultrasound frequencies?
No, humans cannot hear ultrasound frequencies.
Who invented Ultrasound?
Ultrasound technology was first discovered by Paul Langevin and his assistant in 1916. Sonar, a similar technique, was then developed during World War I. The medical applications of ultrasound were later developed in the 1950s and 1960s.
What are the key ultrasound physics formulas used in medical imaging technology?
The key ultrasound physics formulas used in medical imaging technology include the speed of sound in tissue, the frequency of the ultrasound wave, and the wavelength of the ultrasound wave. These formulas help determine the depth of tissue penetration and image resolution in ultrasound imaging.
What year was the ultrasound invented?
I dont know when the Ultrasound was invented so if anybody knows please tell me lol :)
What is a sentence for ultrasound?
An ultrasound is a medical test that used sonar to look inside the body. Here are some sentences.My doctor told me the results of my ultrasound.The ultrasound showed us a picture of her baby inside her womb.Ultrasound technology allows us to look into the body without surgery.
What does the surgeon do after he has widened the blood vessel?
After the surgeon has widened the blood vessel, he or she verifies its patency by using fluoroscopy and contrast media to produce an angiogram, by using intravascular ultrasound, or by using both techniques
What has the author Heinrich D Scheu written?
Heinrich D. Scheu has written: 'Pulsatile flow velocity of the central arterial blood, intravascular measurement with the ultrasound probe' -- subject(s): Blood flow, Measurement, Pulse
What procedure detects blood flow the condition of vessel walls and blockages without using contrast medium?
CT angiography (CTA) provides a record of vessels without using contrast medium. Another non-contrast method for examining the blood vessels is intravascular ultrasound,
What is a ultrasound cart?
A cart which a/an ultrasound is placed
What is the cpt revenue code for ultrasound?
ultrasound
Which is better ultrasound or infra sound?
Ultrasound
Are there any uses of ultrasound in medicine?
yes when you get an ULTRASOUND when your pregnant it use ultrasound waves to show the image.
What do you call a person who can read ultrasound?
An ultrasound technician.
Is Ultrasound painful?
Ultrasound is generally a painless procedure
How do you spell ultrasound in German?
The German word for ultrasound is Ultraschall
Who uses ultrasound?
Animals use ultrasound but i do not know what animals do,
What is the functionality of ultrasound?
Ultrasound is typically performed by a trained ultrasound technologist, it involves using sound waves to get an image of the reproductive system.
