Intravascular ultrasound (IVUS) is a diagnostic procedure that uses high-frequency sound waves to view the inside of a coronary artery to assess blood flow. IVUS involves inserting a catheter with an ultrasonic inducer into the artery.
What to expect during an intravascular ultrasound
Before the procedure
- Before the procedure, a physical examination and lab tests will be performed.
- You should inform your doctor if you have any sensitivities to certain medications.
- If you are on anticoagulants, you may need to discontinue your medication. If you are taking other blood thinners or diabetic medications, talk to your doctor.
- Fast for at least 4 hours and abstain from alcohol and smoking for at least 1 week before the surgery.
- Bring all current medications with you to the hospital on the day of the operation.
- You may be prescribed medications to help you relax and prevent contrast sensitivities.
During the procedure
- You may be given an anticoagulant to prevent blood clots.
- Intravenous lines are used to provide medications and fluids.
- A local anesthetic is administered to the area used to insert the catheter (groin, wrist, or inside of the elbow).
- The IVUS guidewire is inserted and threaded through the artery until it reaches the appropriate position.
- Sound waves bounce off the artery walls and return to the transducer as echoes.
- The echoes are transformed into visuals on a television display, resulting in a clear depiction of the coronary arteries and any potential obstructions.
After the procedure
- After the surgery, you may be escorted to a recovery area for observation and monitoring.
- To avoid bleeding, it is important to lie flat for many hours.
- If the surgery was performed in the groin, pressure may be used to stop the bleeding.
- At the insertion location, a bandage is applied.
- Your puncture site will be sensitive for some time. It may be bruised and slightly swollen.
- Your doctor will most likely prescribe medications to prevent blood clots. It is critical to follow your doctor's directions when using blood thinners.
What are potential risks of IVUS?
Risks of the intravascular ultrasound procedure include the following:
Contact your doctor if you experience any symptoms such as:
- Chest pain
- Difficulty breathing
- Heart palpitations
- Dizziness and fainting
Many factors, including the anatomy of your blood arteries, can impact the outcome of the surgery.
When is IVUS used?
Intravascular ultrasound (IVUS) is routinely used to assess the coronary arteries, which transport oxygen-rich blood to the heart. Uses are as follows:
- Identify whether coronary artery disease caused a heart attack or is causing chest discomfort (angina)
- Treat vascular issues, such as by using stents or other ways to enhance blood flow
- Remove or filter clots, preventing them from entering the heart or brain
- Evaluate the efficacy of a certain treatment, allowing the clinician to determine whether the treatment plan has to be changed
- Visualize the complete artery wall and offer valuable information about the quantity and type of plaque accumulation, which can assist in identifying whether you are at a risk of a heart attack.
- Assist clinicians in better understanding how stents become obstructed (stent restenosis)
In addition to diagnosing coronary artery disease, IVUS can be used to diagnose and treat conditions such as:
- Carotid artery constriction (larger arteries in your neck)
- Aneurysm of the abdominal aorta
- Disease of the peripheral arteries
- Venous disease of the extremities
Parameters measured by IVUS include:
- Severity of lesions
- Underlying morphology of lesions
- Diameter and length of lesions
- Complications such as dissection
- Guide stent implantation
- Risk of stent restenosis
What are the pros and cons of IVUS?
Advantages of IVUS
- Visualize plaque that angiography cannot
- Used in studies to better understand how atherosclerosis occurs
- Allows visualization of not only the lumen (opening) of the coronary arteries but also the atheroma (cholesterol laden white blood cells) “hidden” within the wall
Disadvantages of IVUS
- Longer duration
- Classified as an interventional procedure and should only be conducted through the radiologists who have had interventional cardiology training
- Carries risks, including coronary thrombosis
Because IVUS is widely accessible in cardiac catheterization laboratories across the world and can precisely quantify arterial plaque, particularly inside the coronary arteries, it is increasingly being used to examine emerging and changing techniques for the treatment of coronary artery disease.
IVUS helps the clinician analyze the quantity of plaque, identify the position and size of the stent, and assess treatment problems. Moreover, IVUS can help determine why a stent fails, which enables the cardiologist to plan future treatment protocols.
- What Is Avascular Necrosis and How Does It Affect Bones?
- The Arch of the Human Foot Was Key to Upright Walking, Scientists Say
- Worried About Cataracts? Here's What You Need to Know
- FDA Issues Warning About Compounded Versions of Wegovy, Ozempic
- Sick Restaurant Workers Fuel Many Foodborne Illness Outbreaks
- More Health News »
Health Solutions From Our Sponsors
Intravascular Ultrasound: https://www.radiologyinfo.org/en/info/ultrasound-intravascular#:
Intravascular Ultrasound: https://www.texasheart.org/heart-health/heart-information-center/topics/intravascular-ultrasound/
Intravascular Ultrasound: https://www.ncbi.nlm.nih.gov/books/NBK537019/
Top How Is Intravascular Ultrasound Done Related Articles
What Is the Best Treatment for Peripheral Artery Disease?Peripheral artery disease (PAD), peripheral vascular disease (PVD), or peripheral vascular occlusive disease (PVOD) is a common condition where there is a buildup of fatty deposits (plaque) on the walls of the arteries causing them to narrow. PAD is an abnormal narrowing of the arteries that supply blood to the hands and feet.
Carotid Artery Disease
The term carotid artery disease refers to the narrowing of the carotid arteries and can also be called carotid stenosis. Fatty substance buildup and cholesterol deposits, called plaque are the cause of the narrowing arteries. Carotid artery disease can be treated by following recommended lifestyle changes, taking prescription medications, and considering a procedure to improve blood flow, if your doctor believes it could help.
How Is Coronary Heart Disease Diagosed?Coronary heart disease or coronary artery disease (CAD) screening tests can be used to potentially prevent a heart attack or cardiac event in a person without heart disease symptoms, and can assist in diagnosing heart disease in individuals with heart disease symptoms. Coronary heart disease tests can include electrocardiogram (ECC, EKG), exercise stress test, radionuclide stress test, stress echocardiography, pharmacologic stress test, CT coronary angiogram, and coronary angiogram.
Foods That Are Bad for Your HeartIf you want a healthy ticker, there are some foods you’ll want to indulge in every now and then only. Find out which ones and how to make healthy substitutes.
Heart Disease: Warning Signs of Cardiovascular Disease
Heart disease (coronary artery disease) occurs when plaque builds up in the coronary arteries, the vessels that supply blood to the heart. Heart disease can lead to heart attack. Risk factors for heart disease include:
- High blood pressure
- High cholesterol
- Family history
Angina, shortness of breath, and sweating are just a few symptoms that may indicate a heart attack. Treatment of heart disease involves control of heart disease risk factors through lifestyle changes, medications, and/or stenting or bypass surgery. Heart disease can be prevented by controlling heart disease risk factors.
CAD SlideshowWhat is heart disease (coronary artery disease)? Learn about the causes of heart disease, arrhythmias and myopathy. Symptoms of heart disease include chest pain and shortness of breath. Explore heart disease diagnosis, treatment, and prevention.
Heart Disease: Causes of a Heart AttackHeart disease prevention includes controlling risk factors like diet, exercise, and stress. Heart disease symptoms in women may differ from men. Use a heart disease risk calculator to determine your heart attack risk.
Heart Disease QuizTake our Heart Disease Quiz to get answers and facts about high cholesterol, atherosclerosis prevention, and the causes, symptoms, treatments, testing, and procedures for medically broken hearts.
Heart Disease Treatment in WomenHeart disease treatment in women should take into account female-specific guidelines that were developed by the American Heart Association. Risk factors and symptoms of heart disease in women differ from those in men. Treatment may include lifestyle modification (diet, exercise, weight management, smoking cessation, stress reduction), medications, percutaneous intervention procedure (PCI), and coronary artery bypass grafting (CABG). Heart disease is reversible with treatment.
How Is Coronary Artery Bypass Graft Performed?Coronary artery bypass grafting (CABG) is a surgery performed in patients with coronary artery disease (CAD). Coronary artery bypass grafting (CABG) is a surgery that helps create adequate blood flow to the heart by using healthy blood vessels harvested from some other sites (e.g., leg, arm or chest) to bypass the flow of blood from the site of the blockage. Complications include bleeding, irregular heartbeat, heart attack, stroke, kidney failure, cardiac tamponade, infections, and injury to blood vessels.
What Is an Intravascular Ultrasound Used For?An intravascular ultrasound (IVUS) is an invasive imaging procedure that helps diagnose and treat conditions that affect the coronary arteries and other blood vessels.