What is IVUS procedure?

Intravascular Ultrasound (IVUS) is a catheter-based diagnostic procedure used to view the inside of a coronary artery, providing a real-time view.

Is IVUS considered a PCI?

During PCI, IVUS can be used to select stent size, identify optimal proximal and distal stent edge landing zones and select stent length using motorized transducer pullback to measure the distance between the proximal and distal landing zones, and determine whether to cover the aorto-ostial junction when stenting an …

What is the difference between IVUS and FFR?

Fractional flow reserve (FFR) is a current standard method to define the presence of ischemia, and intravascular ultrasound (IVUS) is the most commonly used invasive imaging tool that can provide the lesion geometry and can provide the information on plaque vulnerability.

When is IVUS used?

IVUS 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.

How is IVUS measured?

IVUS Measurements In defining atherosclerotic plaque burden, plaque media area (PMA) was calculated by subtracting EEM area by MLA area in lesion. PAS percentage (%) was measured using the formula (PMA/EEM area) ×100.

What is IVUS stent?

Intravascular ultrasound ( IVUS ) guidance during percutaneous coronary intervention ( PCI ) offers tomographic images of the coronary vessels, allowing optimization of stent implantation at the time of PCI .

What is IVUS guided PCI?

Background. Intravascular ultrasound ( IVUS ) guidance during percutaneous coronary intervention ( PCI ) offers tomographic images of the coronary vessels, allowing optimization of stent implantation at the time of PCI .

How do you size a IVUS stent?

In general, there are two ways to size coronary stents by the IVUS technique. The traditional IVUS method requires measurement of the maximum proximal and distal reference lumen diameters by IVUS. The stent size is selected based on the larger of these measurements.

Is IVUS painful?

After IVUS You need to pay attention to the leg where the procedure took place and contact your physician if you experience any issues. Problem signs are pain, warmth (maybe an infection), bleeding, swelling, or a change in color. Most patients do not experience any difficulties following IVUS.

When do you use IVUS?

Intravascular ultrasound (IVUS) is a diagnostic test. This test uses sound waves to see inside blood vessels. It is useful for evaluating the coronary arteries that supply the heart.

What are the types of plaque morphology on IVUS?

IB-IVUS classifies plaque components into 4 categories; fibrous (green), dense fibrosis (yellow), lipid pool (blue and purple) and calcification (red) (Figure 3). The sensitivity of IB-IVUS for calcification, fibrous and lipid-rich plaque was 100%, 94% and 84%, respectively on pathohistological analysis (47).