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.
For decades, quantum imaging has promised sharper images and greater light sensitivity than classical methods by exploiting the unique properties of quantum light, such as photon entanglement. But the approaches to do so ...
Optics & Photonics
Mar 28, 2025
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Accurate and robust 3D imaging of specular, or mirror-like, surfaces is crucial in fields such as industrial inspection, medical imaging, virtual reality, and cultural heritage preservation. Yet anyone who has visited a house ...
Optics & Photonics
Mar 27, 2025
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For the first time, researchers have shown that terahertz imaging can be used to visualize internal details of the mouse cochlea with micron-level spatial resolution. The non-invasive method could open new possibilities for ...
Optics & Photonics
Mar 27, 2025
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Tracking targeted drug delivery is often a challenge due to limitations in current imaging techniques. A recent study by Tokyo's Waseda University reports a breakthrough imaging technique that allows direct and highly sensitive ...
Bio & Medicine
Mar 12, 2025
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Researchers at NYU Abu Dhabi (NYUAD) have developed an innovative tool that enhances surgeons' ability to detect and remove cancer cells during cryosurgery, a procedure that uses extreme cold to destroy tumors. This breakthrough ...
Bio & Medicine
Mar 3, 2025
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Quantitative phase imaging (QPI) is a microscopy technique widely used to investigate cells. Even though earlier biomedical applications based on QPI have been developed, both acquisition speed and image quality need to improve ...
Optics & Photonics
Mar 3, 2025
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A new review article unveils the world of flexible micromachined ultrasound transducers (MUTs), an emerging technology at the intersection of wearables, ultrasound, and MEMS. These cutting-edge devices, which include both ...
Bio & Medicine
Feb 21, 2025
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Researchers, including those from the University of Tokyo, developed Deep Nanometry, an analytical technique combining advanced optical equipment with a noise removal algorithm based on unsupervised deep learning.
Bio & Medicine
Feb 20, 2025
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112
Optical fibers are fundamental components in modern science and technology due to their inherent advantages, providing an efficient and secure medium for applications such as internet communication and big data transmission. ...
Optics & Photonics
Feb 7, 2025
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63
Photon-counting CT scanning is the next-generation of computer tomography diagnostics, providing precise, multi-color imaging to simultaneously track biological processes.
Bio & Medicine
Jan 29, 2025
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