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Global News
30-07-2025
- Health
- Global News
McGill University team develops AI that can detect infection before symptoms appear
Researchers at McGill University say they developed an artificial intelligence platform that can predict when someone is about to come down with a respiratory tract infection before they start to feel sick. In what researchers are calling a 'world first,' the study involved participants who wore a ring, a watch and a T-shirt, all of which were equipped with censors that recorded their biometric data. By analyzing the data, researchers were able to accurately predict acute systemic inflammation — an early sign of a respiratory infection such as COVID-19. Published in The Lancet Digital Health, the study says the AI platform can one day help doctors address health problems much earlier than they normally would, particularly in patients who are fragile and for whom a new infection could have serious consequences. It could also potentially reduce costs for the health-care system by preventing complications and hospitalizations. 'We were very interested to see if physiological data measured using wearable sensors … could be used to train an artificial intelligence system capable of detecting an infection or disease resulting from inflammation,' explained the study's lead author, Prof. Dennis Jensen of McGill University's department of kinesiology and physical education. Story continues below advertisement 'We wondered if we could detect early changes in physiology and, from there, predict that someone is about to get sick.' Get daily National news Get the day's top news, political, economic, and current affairs headlines, delivered to your inbox once a day. Sign up for daily National newsletter Sign Up By providing your email address, you have read and agree to Global News' Terms and Conditions and Privacy Policy Jense says the AI model his team created is the first in the world to use physiological measures — including heart rate, heart rate variability, body temperature, respiratory rate, blood pressure — rather than symptoms, to detect a problem. Acute systemic inflammation is a natural defence mechanism of the body that usually resolves on its own, but it can cause serious health problems, especially in populations with pre-existing conditions. 'The whole idea is kind of like an iceberg,' Jensen said. 'Kind of when the ice cracks the surface, that's like when you're symptomatic, and then it's too late to really do much to treat it.' During the study, McGill researchers administered a weakened flu vaccine to 55 healthy adults to simulate infection in their bodies. The subjects were monitored seven days before inoculation and five days after. Participants wore a smart ring, smart watch, and a smart T-shirt simultaneously throughout the study. As well, researchers collected biomarkers of systemic inflammation using blood samples, PCR tests to detect the presence of respiratory pathogens, and a mobile app to collect symptoms reported by participants. In total, more than two billion data points were collected to train machine learning algorithms. Ten different AI models were developed, but the researchers chose the model that used the least amount of data for the remainder of the project. The chosen model correctly detected nearly 90 per cent of actual positive cases and was deemed more practical for daily monitoring. Story continues below advertisement On their own, Jensen said, none of the data collected from the ring, watch, or T-shirt alone is sensitive enough to detect how the body is responding. 'An increase in heart rate alone may only correspond to two beats per minute, which is not really clinically relevant,' he explained. 'The decrease in heart rate variability can be very modest. The increase in temperature can be very modest. So the idea was that by looking at … several different measurements, we would be able to identify subtle changes in physiology.' The algorithms also successfully detected systemic inflammation in four participants infected with COVID-19 during the study. In each case, the algorithms flagged the immune response up to 72 hours before symptoms appeared or infection was confirmed by PCR testing. Ultimately, the researchers hope to develop a system that will inform patients of possible inflammation so they can contact their health-care provider. 'In medicine, we say that you have to give the right treatment to the right person at the right time,' Jensen said. By expanding the therapeutic window in which doctors can intervene, he added, they could save lives and achieve significant savings by avoiding hospitalizations and enabling home management of chronic conditions or even aging. 'In a way, we hope to revolutionize personalized medicine.' This report by The Canadian Press was first published July 30, 2025.
Vancouver Sun
30-07-2025
- Health
- Vancouver Sun
McGill researchers develop AI that predicts respiratory illness before symptoms show
Researchers at McGill University say they developed an artificial intelligence platform that can predict when someone is about to come down with a respiratory tract infection before they start to feel sick. In what researchers are calling a 'world first,' the study involved participants who wore a ring, a watch and a T-shirt, all of which were equipped with sensors that recorded their biometric data. By analyzing the data, researchers were able to accurately predict acute systemic inflammation — an early sign of a respiratory infection such as COVID-19. Published in The Lancet Digital Health, the study says the AI platform can one day help doctors address health problems much earlier than they normally would, particularly in patients who are fragile and for whom a new infection could have serious consequences. It could also potentially reduce costs for the health-care system by preventing complications and hospitalizations. Start your day with a roundup of B.C.-focused news and opinion. By signing up you consent to receive the above newsletter from Postmedia Network Inc. A welcome email is on its way. If you don't see it, please check your junk folder. The next issue of Sunrise will soon be in your inbox. Please try again Interested in more newsletters? Browse here. 'We were very interested to see if physiological data measured using wearable sensors … could be used to train an artificial intelligence system capable of detecting an infection or disease resulting from inflammation,' explained the study's lead author, Prof. Dennis Jensen of McGill University's department of kinesiology and physical education. 'We wondered if we could detect early changes in physiology and, from there, predict that someone is about to get sick.' Jense says the AI model his team created is the first in the world to use physiological measures — including heart rate, heart rate variability, body temperature, respiratory rate, blood pressure _ rather than symptoms, to detect a problem. Acute systemic inflammation is a natural defence mechanism of the body that usually resolves on its own, but it can cause serious health problems, especially in populations with pre-existing conditions. 'The whole idea is kind of like an iceberg,' Jensen said. 'Kind of when the ice cracks the surface, that's like when you're symptomatic, and then it's too late to really do much to treat it.' During the study, McGill researchers administered a weakened flu vaccine to 55 healthy adults to simulate infection in their bodies. The subjects were monitored seven days before inoculation and five days after. Participants wore a smart ring, smart watch, and a smart T-shirt simultaneously throughout the study. As well, researchers collected biomarkers of systemic inflammation using blood samples, PCR tests to detect the presence of respiratory pathogens, and a mobile app to collect symptoms reported by participants. In total, more than two billion data points were collected to train machine learning algorithms. Ten different AI models were developed, but the researchers chose the model that used the least amount of data for the remainder of the project. The chosen model correctly detected nearly 90 per cent of actual positive cases and was deemed more practical for daily monitoring. On their own, Jensen said, none of the data collected from the ring, watch, or T-shirt alone is sensitive enough to detect how the body is responding. 'An increase in heart rate alone may only correspond to two beats per minute, which is not really clinically relevant,' he explained. 'The decrease in heart rate variability can be very modest. The increase in temperature can be very modest. So the idea was that by looking at … several different measurements, we would be able to identify subtle changes in physiology.' The algorithms also successfully detected systemic inflammation in four participants infected with COVID-19 during the study. In each case, the algorithms flagged the immune response up to 72 hours before symptoms appeared or infection was confirmed by PCR testing. Ultimately, the researchers hope to develop a system that will inform patients of possible inflammation so they can contact their health-care provider. 'In medicine, we say that you have to give the right treatment to the right person at the right time,' Jensen said. By expanding the therapeutic window in which doctors can intervene, he added, they could save lives and achieve significant savings by avoiding hospitalizations and enabling home management of chronic conditions or even aging. 'In a way, we hope to revolutionize personalized medicine.' Our website is the place for the latest breaking news, exclusive scoops, longreads and provocative commentary. Please bookmark and sign up for our daily newsletter, Posted, here .
Edmonton Journal
30-07-2025
- Health
- Edmonton Journal
McGill researchers develop AI that predicts respiratory illness before symptoms show
Article content Researchers at McGill University say they developed an artificial intelligence platform that can predict when someone is about to come down with a respiratory tract infection before they start to feel sick. Article content In what researchers are calling a 'world first,' the study involved participants who wore a ring, a watch and a T-shirt, all of which were equipped with sensors that recorded their biometric data. By analyzing the data, researchers were able to accurately predict acute systemic inflammation — an early sign of a respiratory infection such as COVID-19. Article content Article content Article content Published in The Lancet Digital Health, the study says the AI platform can one day help doctors address health problems much earlier than they normally would, particularly in patients who are fragile and for whom a new infection could have serious consequences. It could also potentially reduce costs for the health-care system by preventing complications and hospitalizations. Article content Article content 'We were very interested to see if physiological data measured using wearable sensors … could be used to train an artificial intelligence system capable of detecting an infection or disease resulting from inflammation,' explained the study's lead author, Prof. Dennis Jensen of McGill University's department of kinesiology and physical education. Article content Article content Jense says the AI model his team created is the first in the world to use physiological measures — including heart rate, heart rate variability, body temperature, respiratory rate, blood pressure _ rather than symptoms, to detect a problem. Article content Article content Acute systemic inflammation is a natural defence mechanism of the body that usually resolves on its own, but it can cause serious health problems, especially in populations with pre-existing conditions. Article content 'The whole idea is kind of like an iceberg,' Jensen said. 'Kind of when the ice cracks the surface, that's like when you're symptomatic, and then it's too late to really do much to treat it.' Article content During the study, McGill researchers administered a weakened flu vaccine to 55 healthy adults to simulate infection in their bodies. The subjects were monitored seven days before inoculation and five days after.
Winnipeg Free Press
30-07-2025
- Health
- Winnipeg Free Press
McGill University team develops AI that can detect infection before symptoms appear
MONTRÉAL – Researchers at McGill University say they developed an artificial intelligence platform that can predict when someone is about to come down with a respiratory tract infection before they start to feel sick. In what researchers are calling a 'world first,' the study involved participants who wore a ring, a watch and a T-shirt, all of which were equipped with censors that recorded their biometric data. By analyzing the data, researchers were able to accurately predict acute systemic inflammation — an early sign of a respiratory infection such as COVID-19. Published in The Lancet Digital Health, the study says the AI platform can one day help doctors address health problems much earlier than they normally would, particularly in patients who are fragile and for whom a new infection could have serious consequences. It could also potentially reduce costs for the health-care system by preventing complications and hospitalizations. 'We were very interested to see if physiological data measured using wearable sensors … could be used to train an artificial intelligence system capable of detecting an infection or disease resulting from inflammation,' explained the study's lead author, Prof. Dennis Jensen of McGill University's department of kinesiology and physical education. 'We wondered if we could detect early changes in physiology and, from there, predict that someone is about to get sick.' Jense says the AI model his team created is the first in the world to use physiological measures — including heart rate, heart rate variability, body temperature, respiratory rate, blood pressure — rather than symptoms, to detect a problem. Acute systemic inflammation is a natural defence mechanism of the body that usually resolves on its own, but it can cause serious health problems, especially in populations with pre-existing conditions. 'The whole idea is kind of like an iceberg,' Jensen said. 'Kind of when the ice cracks the surface, that's like when you're symptomatic, and then it's too late to really do much to treat it.' During the study, McGill researchers administered a weakened flu vaccine to 55 healthy adults to simulate infection in their bodies. The subjects were monitored seven days before inoculation and five days after. Participants wore a smart ring, smart watch, and a smart T-shirt simultaneously throughout the study. As well, researchers collected biomarkers of systemic inflammation using blood samples, PCR tests to detect the presence of respiratory pathogens, and a mobile app to collect symptoms reported by participants. In total, more than two billion data points were collected to train machine learning algorithms. Ten different AI models were developed, but the researchers chose the model that used the least amount of data for the remainder of the project. The chosen model correctly detected nearly 90 per cent of actual positive cases and was deemed more practical for daily monitoring. On their own, Jensen said, none of the data collected from the ring, watch, or T-shirt alone is sensitive enough to detect how the body is responding. 'An increase in heart rate alone may only correspond to two beats per minute, which is not really clinically relevant,' he explained. 'The decrease in heart rate variability can be very modest. The increase in temperature can be very modest. So the idea was that by looking at … several different measurements, we would be able to identify subtle changes in physiology.' Wednesdays What's next in arts, life and pop culture. The algorithms also successfully detected systemic inflammation in four participants infected with COVID-19 during the study. In each case, the algorithms flagged the immune response up to 72 hours before symptoms appeared or infection was confirmed by PCR testing. Ultimately, the researchers hope to develop a system that will inform patients of possible inflammation so they can contact their health-care provider. 'In medicine, we say that you have to give the right treatment to the right person at the right time,' Jensen said. By expanding the therapeutic window in which doctors can intervene, he added, they could save lives and achieve significant savings by avoiding hospitalizations and enabling home management of chronic conditions or even aging. 'In a way, we hope to revolutionize personalized medicine.' This report by The Canadian Press was first published July 30, 2025.
Yahoo
23-05-2025
- Health
- Yahoo
What If a Selfie Could Predict Your Life Expectancy?
Imagine if a photo could tell you more about your health than your last check-up? A groundbreaking study from Mass General Brigham, published in journal The Lancet Digital Health, recently introduced FaceAge, an AI tool that estimates a person's biological age from a simple photograph. 'Doctors, myself included, still rely on the eyeball test—a split-second judgment of whether a patient looks robust or frail,' said Dr. Raymond Mak, a radiation oncologist and the director of clinical innovation for his department at the Dana-Farber Cancer Center, the faculty leader in AI implementation for the artificial intelligence in medicine (AIM) program at Mass General Brigham and an associate professor at Harvard Medical School, as well as a co-senior author of the study. More from Flow Space 3 Small Things This Orthopedic Surgeon Wishes Women Would Do for a Longer Life 'That snap impression is subjective, yet it influences treatment decision making every day,' he told Flow Space. So, researchers were curious just how well AI could help doctors diagnose. What they found was that in patients with cancer, looking biologically older than your chronological age, was linked with worse survival outcomes (on average, the FaceAge of cancer patients was about five years older than their chronological age). According to the study, FaceAge not only revealed aging patterns invisible to the naked eye but also outperformed doctors in predicting short-term life expectancy for patients receiving palliative care. 'Our goal was to improve that judgment from a subjective glance to a reproducible, data-driven metric by developing an artificial intelligence algorithm called FaceAge,' Mak explained. 'Such a tool gives doctors the ability to assess patient health at low-cost and repeatedly over time with just a simple face photograph.' An AI algorithm like FaceAge works by taking an image of a patient and then analyzing that image against a database of images of healthy individuals and those with cancer. Mak and his team recently expanded their datasets to include millions of healthy individuals and over 20,000 cancer patients to develop an even more accurate FaceAge algorithm and to test AI performance across a larger and more diverse group of patients. 'Also, we are doing some technical work to understand how the algorithm performs over different conditions including things like, varying skin tone, impact of cosmetic surgery, use of make-up or different lighting conditions and facial expression… like whether someone is smiling or sad,' he added. From there every image quantitatively produces a biological age estimation that is generated the same way every time, regardless of a clinician's experience level, fatigue or unconscious assumptions. 'Selfies for health!,' exclaimed Mak. 'When trained on a large and demographically varied set of face photos, the algorithm applies a consistent rule-set to every image, reducing the variability that creeps into one-to-one visual assessments,' he added. 'It does not replace the physician's judgement, but it does support that judgement with an objective reference point and flags when a patient's biological age appears discordant with their stated age.' While the study did have limitations and biases—with further validation in larger, ethnically diverse and younger cohorts necessary before clinical adoption—FaceAge offers valuable prognostic insights independent of conventional clinical factors, with statistically significant results, even after adjusting for chronological age, sex and cancer type. Mak added that doctors with access to FaceAge information have improved performance and reduced variability in predicting outcomes. 'By flagging people who are biologically older than their years, the technology could help us spot elevated risk for age-related conditions such as cancer and cardiovascular disease,' he said. For midlife women—who are most commonly diagnosed with breast, lung and gastrointestinal cancers—AI and FaceAge could have life changing implications. 'The new AI models are a different breed than the AI of the early 2000s, now with an ability to learn and evolve,' Dr. Katerina Dodelzon, a radiologist specializing in breast imaging and an associate professor of radiology at Weill Cornell Medicine, told Flow Space. 'New advances in AI include subsets termed machine learning, which is an AI that can learn to make predictions or decisions, and its subset of deep learning, which uses artificial neural networks. The more data a machine learning model is exposed to, the better it performs over time.' She says it can also help with: Earlier and More Accurate Detection Midlife women benefit greatly from early cancer detection, which improves survival rates for: : AI can detect subtle changes in mammograms up to two years earlier than radiologists. Lung Cancer: AI can flag early-stage nodules in low-dose CT scans. : AI-assisted colonoscopy improves adenoma detection rate. Personalized Treatment Plans AI helps oncologists tailor therapies based on a patient's unique profile: Genomic Data Analysis: AI can interpret massive genomic datasets to find actionable mutations. For example, in breast cancer, it helps identify candidates for hormone therapy, HER2-targeted therapy or immunotherapy, says Dodelzon. Treatment Optimization: AI evaluates past patient responses to suggest optimal chemotherapy regimens, dosage and predict side effects. Management Remote Monitoring Tools: Wearables and AI apps can track vital signs, symptoms and treatment side effects. This supports real-time intervention and minimizes doctor visits. AI Chatbots & Virtual Health Assistants: These can answer questions, schedule appointments and provide appointment and medication reminders. Equity and Access Many midlife women face healthcare disparities based on race, income or geography. And for women living in healthcare deserts, where access to care is limited, AI can: Improve Access to Expertise: AI tools bring expert-level diagnostic and treatment planning to underserved or rural areas via telehealth. Language and Literacy Support: AI-powered translation and plain-language medical explanations empower patients to understand and make informed choices. For Mak and his team harnessing AI to save more lives is the ultimate goal. They are currently developing new facial health recognition algorithms that can predict survival directly or other health conditions, in addition to conducting genetic analyses on a larger group of patients and opening two prospective studies. 'One is a clinical trial in cancer patients where we will compare FaceAge against conventional assessments of frailty in elderly patients,' said Mak. 'Second, we are about to open a healthy volunteer portal where people in the public can upload photos and get their own FaceAge estimate—and their photos will help us develop improved algorithms.' And the future of AI in healthcare is set to be transformative, shifting the industry from reactive to highly proactive, personalized and precise. Dodelzon says rather than replacing doctors, AI will augment their capabilities. This support will help catch conditions earlier, reduce diagnostic errors and streamline clinical decision-making. By leveraging vast datasets, AI will recommend treatment options tailored not only to clinical guidelines but also to a patient's unique biology and preferences. Moreover, AI will take over many of the time-consuming administrative tasks that burden healthcare professionals, such as documentation, billing and charting, which allows for more meaningful patient interaction and personalized care. 'I think the current advances and the future development and promise of these tools is very exciting, with the potential to augment many of the routine detection and characterization tasks, and even more exciting to me, the potential to provide more prognostic in addition to diagnostic information,' Dodelzon said. 'But that is what they are—'tools' in our 'doctor's bag' that allow us to do more for our patients.'
