New AI outlines lung tumors better and faster than doctors, study finds
The study, published in the journal npj Precision Oncology, explored the capabilities of a new device, developed by a team at Northwestern Medicine. The device is called iSeg, which comes from its ability to perform tumor segmentation (online or mapping tumors). The traditional process of tumor segmentation is complex and poses challenges for doctors. It can also take multiple doctors visits, several scans, and a great deal of time. In one study, manual segmentation required 12 scans and took doctors seven hours to complete the manual tumor mapping.
Other AI tools have been developed for cancer screenings, however, those tools used static images. iSeg uses 3D imagery for a deeper understanding of the tumor, including how it moves as a patient breathes—an important factor in determining treatment plans. iSeg's clearer mapping also means it exposes areas that doctors may miss while using manual segmentation.
In the study, after the AI was trained, iSeg was shown scans it had never seen, and was tasked with outlining tumors. When compared to outlines drawn by physicians, iSeg matched experts' drawings, but it also flagged additional areas that doctors couldn't see. Interestingly, those areas turned out to be critical, as they are often linked to more serious diagnoses and worse outcomes if overlooked.
'We're one step closer to cancer treatments that are even more precise than any of us imagined just a decade ago,' said Dr. Mohamed Abazeed, senior author of the study, and chair and professor of radiation oncology at Northwestern University Feinberg School of Medicine. 'The goal of this technology is to give our doctors better tools,' added Abazeed.
Other experts say AI technology is important when it comes to lung cancer patients, not only because it can save lives, but also because it may help close care gaps that lead to underdiagnosing for certain groups due to socioeconomic factors. Pulmonologist Stephen Kuperberg, MPH '24, and David Christiani, Elkan Blout Professor of Environmental Genetics at Harvard T.H. Chan School of Public Health, explained in a June commentary that cancer screening rates are lower among high-risk patients from Black and Latinx neighborhoods.
'The underlying reasons for poor uptake within this population are complex, including structural racism and social and cultural factors,' they wrote, urging the 'vital need' for more AI tools which can help with 'optimal data collection.' Currently, the glaring gap in early detection leads to higher mortality from the disease for those groups.
They added, 'AI technologies will transform reporting, collecting, and processing population data, whether in public datasets and repositories or within institutions, paving the way for discovery and methodology development in lung cancer detection.'
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Different outcomes: And there may be exceptions. "One study interestingly showed that white tea released more polyphenols when cold brewed," she notes, adding that whatever the brewing method, the bioavailability of the antioxidants is still excellent. Enjoyed hot or cold, the benefits attributed to drinking tea are usually similar. Serving tea cold doesn't diminish the benefits—polyphenols remain stable unless the brew is heavily diluted or sits out for too long, Derocha explains. "The key is how you prepare it: fresh-brewed and unsweetened tea—iced or hot—retains its full nutrition." Some tea drinkers prefer their iced brew with plenty of cubes, while others need something extra to make it palatable. "It's all about balance: Tea can still be a part of a healthy lifestyle, even with a splash of milk or a touch of sweetener—just be mindful of how often and how much," Derocha says. Sugar: Remember that added sugar, says Derocha, can spike blood glucose and add calories. Milk and alt-milks: For iced chai or milk teas, Derocha suggests choosing unsweetened or low-sugar versions and using a milk or milk substitute with calcium and vitamin D to boost its nutritional value. Garnishes: For those seeking more flavor, Gensler suggests adding a final flourish of fresh mint, cinnamon, or lemon. Iced tea is a delightful and healthy refresher; nevertheless, overindulging can have a negative impact. Moderation: "Some teas contain caffeine, which in high amounts can lead to sleep disturbances, increased heart rate, or digestive issues," Derocha points out. Kidneys: And certain compounds, like oxalates, more prevalent in black teas, can affect kidney health. "Always talk with your healthcare provider if you have kidney issues or other conditions that might require special guidance," Derocha says. Read the original article on Martha Stewart
