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February 23, 2021
Coronary computed tomographic angiography (CTA) may be as good as invasive coronary angiography (ICA) at predicting the long-term risk of adverse events in patients with non-ST-segment elevation acute coronary syndromes, according to a subanalysis of the VERDICT trial.
“The key thing is that it s pretty much equivalent whether you do an ICA or you do a CT to define the likelihood of events after the MI,” lead author Klaus F. Kofoed, MD, DmSc (University of Copenhagen, Denmark), told TCTMD. “So that was kind of reassuring that you don t need to do an ICA if you already have a CT.”
New AI Algorithm Predicts Adverse Cardiovascular Events
Written by AZoRoboticsFeb 1 2021
The term coronary artery calcification refers to the accumulation of calcified plaque in the arterial walls of the heart. This condition is a crucial predictor of unfavorable cardiovascular events, including heart attacks.
Image Credit: Roman Zaiets/shutterstock
While computed tomography (CT) scans can help detect coronary calcium, measuring the amount of plaque needs time, dedicated equipment, and radiological know-how. While chest CT scans are quite common in practice, calcium score CTs are not.
Now, researchers from Brigham and Women’s Hospital’s Artificial Intelligence in Medicine (AIM) Program and the Cardiovascular Imaging Research Center (CIRC) at Massachusetts General Hospital have collaborated to design and assess a deep learning system that may help change this scenario.
Novel deep learning system can predict cardiovascular risk from CT scans
Coronary artery calcification the buildup of calcified plaque in the walls of the heart s arteries is an important predictor of adverse cardiovascular events like heart attacks. Coronary calcium can be detected by computed tomography (CT) scans, but quantifying the amount of plaque requires radiological expertise, time and specialized equipment.
In practice, even though chest CT scans are fairly common, calcium score CTs are not. Investigators from Brigham and Women s Hospital s Artificial Intelligence in Medicine (AIM) Program and the Massachusetts General Hospital s Cardiovascular Imaging Research Center (CIRC) teamed up to develop and evaluate a deep learning system that may help change this.
December 18, 2020
For the initial evaluation of low-risk patients with stable chest pain, anatomic testing coronary CT angiography (CTA) with or without noninvasive fractional flow reserve (FFR) is cost-effective compared with functional testing, a new analysis based on PROMISE trial data indicates.
Over the course of a patient’s life, using CTA alone instead of functional testing would be cost-effective with an incremental cost-effectiveness ratio (ICER) of $2,743 per quality-adjusted life-year (QALY). Coronary CTA supplemented with noninvasive FFR (FFRCT) dominated functional testing, with greater effectiveness and less cost.
Researchers led by Júlia Karády, MD (Massachusetts General Hospital, Boston), report in