Revolutionary AI Technology Could Transform Heart Disease Detection
Scientists are hailing a new artificial intelligence (AI) technology as “game changing” for its ability to identify individuals at risk of heart attacks up to a decade before they occur. This groundbreaking technology, developed by Caristo Diagnostics, an Oxford University spinout, detects inflammation in the heart that traditional CT scans often miss.
The AI model, known as CaRi-Heart, analyzes routine CT scans using an advanced algorithm to identify coronary inflammation and plaque. Unlike conventional CT scans, which rely on X-rays and computer technology, CaRi-Heart can detect subtle biological processes that are invisible to the human eye but crucial for predicting cardiovascular risk.
The technology is currently being tested in a pilot project supported by NHS England, running at five hospital trusts across Oxford, Milton Keynes, Leicester, Liverpool, and Wolverhampton. A decision on whether the technology will be adopted widely within the NHS is expected within the coming months.
Prof. Keith Channon from the University of Oxford praised the technology for its transformative potential. “For the first time, we can detect biological processes that precede the development of blockages and narrowings in the heart,” he said.
During the pilot, patients experiencing chest pain who are referred for a routine CT scan have their results analyzed by the CaRi-Heart platform. The algorithm’s findings are then reviewed by trained operators to ensure accuracy. Research has linked increased inflammation to a higher risk of cardiovascular disease and fatal heart attacks.
The British Heart Foundation (BHF) reports that around 7.6 million people in the UK live with heart disease, with the annual NHS cost estimated at £7.4 billion. Each year, approximately 350,000 patients in the UK undergo cardiac CT scans. The Orfan study (Oxford Risk Factors and Non-invasive Imaging), involving 40,000 patients and published in The Lancet, found that 80% of patients returned to primary care without a defined prevention or treatment plan. However, the study also indicated that patients with coronary inflammation had a 20 to 30 times higher risk of dying from a cardiac event within the next decade.
Using the new AI technology, 45% of these high-risk patients were prescribed medication or advised to make lifestyle changes to mitigate future heart attack risks.
Ian Pickford, 58, from Barwell in Leicestershire, was referred for a CT scan in November 2023 due to persistent chest pain and enrolled in the Orfan study. The AI analysis indicated he was at high risk for a heart attack, leading to a prescription for statins and lifestyle recommendations. “It’s a huge wake-up call,” Pickford said, reflecting on the impact of the findings.
Prof. Charalambos Antoniades, lead researcher for the Orfan study, emphasized the advanced capabilities of this AI technology compared to traditional risk calculators. “Now, with this technology, we can identify disease activity in arteries before the disease develops, allowing us to intervene early and prevent heart attacks,” he said.
The National Institute for Health and Care Excellence is currently reviewing the AI technology to determine its potential for broader NHS use. It is also under evaluation in the US and has already received approval for use in Europe and Australia.
Technology
UK Considers Social Media Ban for Under-16s Amid Safety Concerns
The UK government is exploring a potential ban on social media for under-16s, according to Technology Secretary Peter Kyle. Speaking on BBC Radio 4’s Today programme, Kyle emphasized that safeguarding children online is a top priority, stating he would “do what it takes” to ensure their safety.
Kyle also announced plans for further research into the effects of technology, including social media and smartphones, on young people. He noted the lack of “firm, peer-reviewed evidence” on the matter and said such data would inform future decisions.
Online Safety Act Enforcement
The announcement coincides with Kyle’s “letter of strategic intent” to Ofcom, the UK’s communications regulator, which will soon gain new enforcement powers under the Online Safety Act (OSA). The OSA, set to take effect in 2024, requires tech companies to take greater responsibility for the content on their platforms, particularly to shield children from harmful material.
Kyle stressed the importance of assertive regulation, calling on Ofcom to fully utilize its authority under the Act. “I just want to make sure that Ofcom knows that government expects them to be used,” he said.
Under the OSA, social media and messaging platforms face steep fines—potentially in the billions—if they fail to comply. Some platforms have already introduced changes, such as Instagram’s new teen accounts and Roblox’s ban on young children messaging others.
Calls for Broader Action
The Molly Rose Foundation, a campaign group advocating for online safety, welcomed Kyle’s efforts but urged the government to strengthen the OSA. “The public and parents back an updated Act that embeds an overarching duty of care on tech firms,” the group posted on social media platform X, calling for swift action from the Prime Minister.
Legal experts have cautioned that banning social media for young people is only part of the solution. Iona Silverman, a lawyer at Freeths, described the measure as “a drop in an ocean-sized problem,” pointing out that teenagers may still find ways to access harmful content. She called for a broader cultural shift and more proactive legislation to address the issue.
Lessons from Australia
The UK’s deliberations come after Australia announced plans to ban social media for children under 16. When asked if the UK would adopt a similar policy, Kyle said, “Everything is on the table,” but stressed the need for evidence-based decisions.
Smartphone Use Under Scrutiny
The debate extends beyond social media to smartphone usage among young people. Parliament is reviewing a private member’s bill addressing digital safety for children, with input from the Healthcare Professionals for Safer Screens group. Founder and GP Rebecca Foljambe highlighted growing concerns among health professionals about smartphone overuse.
While the government has stopped short of banning smartphones in schools, it has issued guidelines to promote effective restrictions. Kyle previously stated that the “battle over phone use in schools had been won.”
Critics, however, continue to call for more decisive action to protect children in an increasingly digital world.
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