Reference Terms
from Wikipedia, the free encyclopedia
CAT scan
Computed tomography (CT), originally known as computed axial tomography (CAT) and body section roentgenography, is a medical imaging method employing tomography where digital geometry processing is used to generate a three-dimensional image of the internals of an object from a large series of two-dimensional X-ray images taken around a single axis of rotation. Although most common in healthcare, CT is also used in other fields, for example nondestructive materials testing.
Related Stories
1
2
Health & Medicine News
February 11, 2026
Feb. 11, 2026 Depression in older adults may sometimes signal the early stages of Parkinson’s disease or Lewy body dementia. Researchers found that depression often appears years before diagnosis and remains ...
Feb. 11, 2026 A cooler bedroom might be better for older sleepers than previously thought. Researchers found that keeping nighttime temperatures at 75°F reduced stress responses and helped the heart work more efficiently during sleep. Hot nights usually force ...
Feb. 11, 2026 Blood vessels twist, branch, narrow, and balloon in ways that dramatically affect how blood flows — but most lab models have long treated them like straight pipes. Researchers at Texas A&M have now built a new kind of “vessel-chip” that ...
Feb. 11, 2026 Why does the same virus barely faze one person while sending another to the hospital? New research shows the answer lies in a molecular record etched into our immune cells by both our genes and our life experiences. Scientists at the Salk Institute ...
Feb. 10, 2026 Ultra-processed foods are everywhere in the American diet, and researchers are finding alarming consequences. Using national health data, scientists found that adults with the highest intake of these foods had a 47% higher risk of heart attack or ...
Feb. 10, 2026 Scientists have uncovered a surprising way tumors turn the immune system to their advantage. Researchers at the University of Geneva found that neutrophils—normally frontline defenders against infection—can be reprogrammed inside tumors to fuel ...
Feb. 10, 2026 Human evolution has long been tied to growing brain size, and new research suggests prenatal hormones may have played a surprising role. By studying the relative lengths of index and ring fingers — a clue to oestrogen and testosterone exposure in ...
Feb. 10, 2026 Autism has long been thought of as a condition that mostly affects boys, but a massive study from Sweden suggests that idea may be misleading. Tracking nearly 3 million people over decades, researchers found that while boys are diagnosed more often ...
Feb. 10, 2026 A large U.S. study suggests that not getting enough lycopene—the antioxidant that gives tomatoes their red color—may seriously raise the risk of severe gum disease in older adults. Researchers found that seniors with adequate lycopene intake had ...
Feb. 10, 2026 A sweeping new review of ADHD treatments—drawing on more than 200 meta-analyses—cuts through years of mixed messaging and hype. To make sense of it all, researchers have launched an interactive, public website that lets people with ADHD and ...
Feb. 10, 2026 Researchers at the University of Michigan have created an AI system that can interpret brain MRI scans in just seconds, accurately identifying a wide range of neurological conditions and determining which cases need urgent care. Trained on hundreds ...
Feb. 10, 2026 A long-term study of older adults with moderate hearing loss found that hearing aids did not lead to better performance on memory or thinking tests, but the story did not end there. Over seven years, people who were prescribed hearing aids were ...
Latest Headlines
updated 12:56 pm ET
Feb. 9, 2026 Scientists have discovered that DNA behaves in a surprising way when squeezed through tiny nanopores, overturning a long-held assumption in genetics research. What researchers once thought were knots ...
Feb. 9, 2026 A long-term study found that women who closely followed a Mediterranean diet had a much lower risk of stroke. The strongest benefits were seen in women who ate more plant-based foods, fish, and olive ...
Feb. 9, 2026 Scientists have discovered why ovarian cancer spreads so rapidly through the abdomen. Cancer cells enlist normally protective abdominal cells, forming mixed groups that work together to invade new ...
Feb. 9, 2026 A centuries-old Chinese medicinal root is getting new scientific attention as a potential game-changer for common hair loss. Polygonum multiflorum, long believed to restore dark, healthy hair, ...
Feb. 8, 2026 A new international study points to a specific brain network as the core driver of Parkinson’s disease. Scientists found that this network becomes overly connected, disrupting not just movement but ...
Feb. 8, 2026 Your gut is home to trillions of bacteria that constantly “sense” their surroundings to survive and thrive. New research shows that beneficial gut microbes, especially common Clostridia bacteria, ...
Feb. 8, 2026 Researchers have found a surprising way to turn sunflower oil waste into a powerful bread upgrade. By replacing part of wheat flour with partially defatted sunflower seed flour, breads became ...
Feb. 8, 2026 Scientists have uncovered promising clues that compounds found in Aloe vera could play a role in fighting Alzheimer’s disease. Using advanced computer modeling, researchers discovered that ...
Feb. 8, 2026 Scientists have identified a promising new compound, Mic-628, that can reliably shift the body’s internal clock forward—something that’s notoriously hard to do. By targeting a key clock-control ...
Feb. 8, 2026 What a mother eats during pregnancy may quietly shape her child’s liver health years down the road—but new research suggests there may be a way to tip the odds back in a healthier direction. ...