News | June 23, 2014

New Study Sheds Light on Risk Factors for Atrial Fibrillation and Cardioembolic Stroke

June 23, 2014 — Researchers have announced the results of a four-year study that used 3-D echocardiography to examine the role of mid left atrial cross sectional area (LACSA) as a risk factor for cardioembolic (CE) stroke, atrial fibrillation (AF) and stroke recurrence. Atrial fibrillation is a common heart problem, affecting 2.6 million Americans per year. Strokes resulting from atrial fibrillation and heart disease are typically more severe, as they are associated with significant debilities and higher death rates.

“One of the challenges in treating patients with heart disease and AF is predicting which patients are at higher risk for stroke. Our study identifies a novel imaging sign that can be obtained with echocardiography, a common medical diagnostic tool that uses ultrasound to image the heart, in order to improve our ability to predict which patients are at greater risk for stroke,” said primary investigator Timothy C. Tan, Ph.D., MBBS, clinical and research fellow at Massachusetts General Hospital. “Ultimately, this may help physicians develop more targeted and effective treatment plans for patients with heart disease and AF.”

Tan and his colleagues first used 3-D echo and customized software to analyze a small cohort of 40 ischemic stroke patients, to compare left atrial (LA) remodeling between patients with AF and those without AF. Those results, combined with flow dynamics analysis, allowed the researchers to derive a simplified echocardiographic parameter using 2-D echo measurements to calculate LACSA. Finally, the researchers validated their new formula in a separate group of 1,275 ischemic stroke patients.

Researchers on the study, “Left Atrial Cross Sectional Area, a Marker of Left Atrial Shape, is a Novel Risk Factor for Cardioembolic Stroke and Recurrence of Ischemic Stroke,” included Tan, Octavio Pontes-Neto, Mark Handschumacher, Maria C. Nunes, Yong-Hyun Park, Victoria Piro, Yuan Jiao, Gyeong-Moon Kim, Johanna Helenius, Cashel O'Brien, Xin Zeng, Karen Furie, Hakan Ay and Judy Hung from Massachusetts General Hospital in Boston.

The results of the study were presented at the 25th annual scientific sessions of the American Society of Echocardiography (ASE) in Portland, Ore.

For more information:

Related Content

Siemens Healthineers Introduces Portable Cardiovascular-Dedicated Ultrasound at ACC.18
News | Cardiovascular Ultrasound | March 13, 2018
At the American College of Cardiology’s (ACC) 67th Annual Scientific Session and Expo, March 10-12 in Orlando, Fla.,...
Imaging Plays Key Role in Evaluating Injuries at Olympics
News | Orthopedic Imaging | February 28, 2018
The Olympic Games give elite athletes a chance at athletic triumph, but also carry a risk of injury. When injuries...
ContextVision Demonstrates VolarView and the Orthopedic Package at ECR 2018
Technology | Advanced Visualization | February 27, 2018
At this year’s European Congress of Radiology (ECR), Feb. 28-March 4 in Vienna, Austria, ContextVision will showcase...
ASE Participating in Global Study to Establish New Standardization in Cardiovascular Ultrasound
News | Cardiovascular Ultrasound | February 26, 2018
February 26, 2018 – The American Society of Echocardiography (ASE) and its International Alliance Partners are joinin
AHRA and Canon Medical Systems Announce 2017 Putting Patients First Grant Winners
News | Patient Engagement | February 14, 2018
The Association for Medical Imaging Management (AHRA) and Canon Medical Systems recently announced the tenth annual...
FDA Clears First AI-Powered Clinical Decision Support Software for Stroke
Technology | Clinical Decision Support | February 14, 2018
The U.S. Food and Drug Administration (FDA) announced marketing clearance for Viz.AI’s Contact application, the first ...
Digisonics Customers Expand OB Ultrasound Reporting Systems for Improved Workflow Efficiency
News | Ultrasound Imaging | February 06, 2018
February 6, 2018 – Oregon Health and Science University in Portland, Ore., University of Utah Medical Center in Salt
Overlay Init