Medical imaging is a set of diagnostic techniques that noninvasively visualize internal anatomical structures and physiological processes using diverse physical modalities. Core methods include ionizing-radiation–based techniques (e.g., radiography, computed tomography, nuclear medicine, PET/SPECT), non-ionizing modalities (e.g., MRI, ultrasound, optical imaging), and hybrid systems (e.g., PET/CT, PET/MRI). These techniques exploit contrasts in tissue density, proton properties, acoustic impedance, or radiotracer distribution to generate qualitative and quantitative data. Medical imaging underpins clinical decision-making, image-guided interventions, treatment planning, and longitudinal monitoring, and increasingly incorporates advanced reconstruction algorithms, quantitative biomarkers, and AI-driven image analysis.
Natural disasters. Hikes. Long, dark nights alone. For many people, dogs offer a sense of safety and comfort in challenging or uncertain times. Cancer researchers at a new lab at Purdue University are partnering with dogs ...
Veterinary medicine
Oct 22, 2026
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11
Contrast agents are compounds routinely used in clinical analysis to enhance differentiation between tissues or to increase the visibility of structures or fluids within the body, thus facilitating medical diagnosis. A study ...
Bio & Medicine
Oct 5, 2026
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13
New research has found that the rate of hip fractures among astronauts after spaceflights lasting more than 90 days was higher than after shorter spaceflights or among people who were not astronauts. The findings of the study ...
Space Exploration
Oct 1, 2026
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70
A research team led by an Oregon State University scientist has demonstrated in a mouse model a potentially better way to care for women facing the life-threatening condition of ectopic pregnancy.
Bio & Medicine
Sep 30, 2026
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During NASA's SpaceX Crew-13 mission aboard the International Space Station, astronauts will support a series of biomedical and human performance investigations, including a new collaborative effort to study how spaceflight ...
Space Exploration
Sep 24, 2026
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16
Mitochondria—tiny structures that convert nutrients into energy—are often depicted as discrete kidney bean-shaped objects. But in reality, they form a dynamic, interconnected network throughout the entire cell, rapidly splitting ...
Cell & Microbiology
Sep 20, 2026
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126
At 61, Bill had begun showing changes in his health—decreased appetite, weight loss and abdominal bloating. But his bloodwork was normal, leaving the cause of his symptoms unknown. The next step was clear: Bill should get ...
Plants & Animals
Aug 24, 2026
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107
The most prominent difference between human male and female skeletons is the pelvis, which anthropologists often use to determine the sex of ancient remains. Scientists have long believed the human pelvis evolved mainly as ...
For dogs with heart disease, a fraction of a centimeter can make a life-changing difference. Veterinarians often rely on chest radiographs to monitor subtle changes in heart size that help determine when treatment should ...
Veterinary medicine
Aug 12, 2026
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12
Modern biomedicine increasingly relies on enormous amounts of image data. Although computers can do part of the analysis work, biologists often still need to look through the images themselves. This takes time.
Biotechnology
Aug 12, 2026
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