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.
A method based on CT (computed tomography)—a type of imaging that is widely used in hospitals—can help improve our understanding of CO2 storage, batteries, and processes in the body such as nutrient uptake.
Soft Matter
Apr 9, 2024
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139
Holographic displays offer a promising avenue for achieving lifelike 3D reproductions with continuous depth sensation, holding potential applications in fields such as entertainment, medical imaging, and virtual reality. ...
Optics & Photonics
Apr 8, 2024
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234
Versatility and miniaturization of imaging systems are of great importance in today's information society. Microscopic imaging techniques have always been indispensable for scientific research and disease diagnosis in the ...
Optics & Photonics
Mar 29, 2024
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143
In the realm of medical imaging, there are quite a few different techniques to extract information from biological tissue based on its different interactions with visible light. Over the past decade, there has been a massive ...
Optics & Photonics
Mar 13, 2024
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82
The human brain has billions of neurons. Working together, they enable higher-order brain functions such as cognition and complex behaviors. To study these higher-order brain functions, it is important to understand how neural ...
Bio & Medicine
Mar 4, 2024
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257
Understanding complex biological and biomedical systems is greatly aided by 3D imaging, which provides much more detailed information than traditional two-dimensional methods. However, live cell and tissue imaging remain ...
Optics & Photonics
Feb 22, 2024
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80
Canadian researchers led by Montreal radiologist Gilles Soulez have developed a novel approach to treat liver tumors using magnet-guided microrobots in an MRI device.
Bio & Medicine
Feb 14, 2024
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112
Researchers from Brigham and Women's Hospital and the Massachusetts Institute of Technology (MIT) have unveiled unprecedentedly detailed images of brain cancer tissue through the use of a new microscopy technology called ...
Bio & Medicine
Jan 31, 2024
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691
Researchers from the School of Biomedical Engineering & Imaging Sciences have published a new study exploring the use of positron emission particle tracking (PEPT) in a living subject for the first time.
Bio & Medicine
Jan 19, 2024
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233
Terahertz waves can penetrate opaque materials and provide unique spectral signatures of various chemicals, but their adoption for real-world applications has been limited by the slow speed, large size, high cost and complexity ...
Optics & Photonics
Jan 18, 2024
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