News | February 10, 2008

New Guidelines Issued on Carotid Ultrasound for Diagnosing CAD

February 11, 2008 - The American Society of Echocardiography (ASE) has issued a new consensus statement for interpreting and responding to results of a carotid ultrasound study for cardiovascular disease risk assessment, in order to identify hidden risks for heart disease without invasive procedures.

The statement provides specific guidance for detecting early atherosclerotic plaques and increased thickness of the carotid artery walls - also known as carotid intima-media thickness (CIMT). By following the consensus statement, doctors will be more confident recommending aggressive preventive therapies if ultrasound reveals the walls of the carotid arteries are thicker than established cut points for patients of similar age, sex and race.

“There is a great interest in identifying patients who don't have symptoms of heart and blood vessel disease, but who are at higher risk than they may appear,” said James H. Stein, M.D., a cardiologist at the University of Wisconsin School of Medicine and Public Health, the lead author of the ASE consensus statement. “Having a safe, noninvasive approach for diagnosing early arterial disease and revealing potential heart disease will give doctors and patients the information they need to select the best treatment options.”

Carotid ultrasound has been used as a research tool for more than two decades and is increasingly turning into an established clinical practice. To guide doctors on when it should be used and what the results mean, the consensus statement provides standards for patient selection, scanning technique, imaging protocol and interpretation. In addition, it provides recommendations for training and certification of sonographers and readers.

Dr. Stein said despite the proven value of ultrasound scans for arteries, ASE is not recommending routine use of the procedure for all patients. “The guidelines are designed to alert physicians to the types of patients for whom the test may be useful,” he said. “Carotid ultrasound to measure wall thickness and look for early plaques is most useful when other clinical information puts patients on the borderline between needing aggressive therapy and following a more standard approach.”

Patients that may benefit from this test include those who do not already have heart or arterial disease and who:

* Are clinically determined to be at 'intermediate' risk for a heart attack or cardiac death in the next ten years

* Have a family history of premature cardiovascular disease in a close relative

* Have significant abnormalities in one or more known cardiovascular risk factors (such as young patients with genetic cholesterol disorders or who are heavy smokers

* Are women under 60 with at least two cardiovascular risk factors.

This test can be considered if the level of aggressiveness of therapy is uncertain and additional information about the burden of early vascular disease or future cardiovascular disease risk is needed. Imaging should not be performed unless the results would be expected to alter therapy. The guidelines set the 75th percentile as the threshold for aggressive treatment. Those who have CIMT greater than that level for patients of similar age, sex and race are considered to be at increased cardiovascular risk. Also, patients with carotid plaques are considered at increased risk.

The consensus panel recommended a comprehensive scan of all segments of both carotid arteries to look for the presence of plaques, as well as imaging of the far walls of each common carotid artery so CIMT can be measured. The presence of carotid plaque or increased CIMT is a marker of increased risk of heart attack, stroke, or death from cardiovascular disease.

This consensus statement was also endorsed by the Society for Vascular Medicine.

Source: The American Society of Echocardiography

For more information: www.seemyheart.org

Related Content

Houston Methodist Hospital Enters Multi-Year Technology and Research Agreement With Siemens Healthineers
News | Cardiac Imaging| August 17, 2017
Houston Methodist Hospital and Siemens Healthineers have entered into a multi-year agreement to bring cutting-edge...
Clarius Wireless Ultrasound Scanners Now Available With Advanced Features
News | Ultrasound Imaging| August 09, 2017
Clarius Mobile Health has released advanced features and options for its wireless handheld ultrasound scanner for...
Oregon Tech Partners with Mindray for High-Tech Ultrasound Education
News | Ultrasound Imaging| August 04, 2017
To better prepare its ultrasound students to compete and thrive in the evolving healthcare environment, Oregon...
Carestream Shows Touch Prime Systems at Society for Vascular Ultrasound Conference
News | Cardiovascular Ultrasound| August 03, 2017
Carestream will showcase its Carestream Touch Prime and Touch Prime XE Ultrasound Systems at the Society for Vascular...
Hitachi and West Virginia University Partner to Advance Left Ventricular Mechanical Function Evaluation
News | Cardiovascular Ultrasound| July 21, 2017
Hitachi Healthcare and the West Virginia University Heart and Vascular Institute announced the formation of a new...
3-D Vascular Ultrasound Quantifies Plaque Burden to Estimate Cardiovascular Risk
News | Cardiovascular Ultrasound| July 20, 2017
July 20, 2017 — In a large, first-of-its-kind population, researchers found an experimental technique known as...
Floyd Medical Center Acquires Quartet of Toshiba Cardiac Ultrasound Systems
News | Cardiovascular Ultrasound| July 19, 2017
Floyd Medical Center in Rome, Ga., recently installed three new Aplio 500 Platinum CV ultrasound systems from Toshiba...
Sponsored Content | Videos | Cardiovascular Surgery| July 19, 2017
This video educational session, provided in partnership with the American Society of Echocardiography (ASE), is title
Automated medical imaging views using deep learning, artificial intelligence, Philips Epiq

GE, Siemens and Philips are among the echocardiography vendors that incorporate deep learning algorithms into its echo software to help automatically extract standard imaging views from 3-D ultrasound datasets. This is an example of the Philips Epiq system, which uses the vendor's Anatomical Intelligence software to define the anatomical structures and automatically display standard diagnostic views of the anatomy without human intervention. This can greatly speed workflow and reduce inter-operator variability. 

Feature | Artificial Intelligence| July 17, 2017 | Oksana Bandura
Medical image analysis based on artificial intelligence (AI) employ convolutional neural networks, support vector mac
Novel Approach May Improve Valve Function in Some Patients

Image courtesy of Messas, et al. JACC Basic to Translational Medicine.

News | Heart Valve Technology| June 30, 2017
June 30, 2017 — Pulsed cavitation ultrasound can be used to remotely soften human degenerative calcified biosprosthet
Overlay Init