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.
Medical imaging methods such as ultrasound and MRI are often affected by background noise, which can introduce blurring and obscure fine anatomical details in the images. For clinicians who depend on medical images, background ...
Optics & Photonics
Aug 12, 2025
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In a new study, researchers show, for the first time, that photoacoustic microscopy can image stents through skin, potentially offering a safer, easier way to monitor these life-saving devices. Each year, around 2 million ...
Optics & Photonics
Jul 26, 2025
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63
Until today, skin, brain, and all tissues of the human body were difficult to observe in detail with an optical microscope, since the contrast in the image was hindered by the high density of their structures. The research ...
Optics & Photonics
Jul 24, 2025
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158
A team of researchers has recently developed a nondestructive imaging and machine learning system that accurately predicts the efficiency of stem cell differentiation into muscle stem cells. The team was led by Associate ...
Cell & Microbiology
Jul 24, 2025
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29
Neurovascular coupling (NVC) is the dynamic regulation of cerebral blood flow in response to neural activity. Specifically, when neurons become active, nearby blood vessels dilate to increase blood supply, thereby meeting ...
Biotechnology
Jul 23, 2025
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56
Technologies such as biomedical imaging and spectroscopy could be enhanced by a discovery in research that involved several institutions, including the University of Glasgow. Scientists have found that two-photon processes, ...
Optics & Photonics
Jul 7, 2025
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63
The Korea Research Institute of Standards and Science has successfully developed a nanomaterial capable of simultaneously performing cancer diagnosis, treatment, and immune response induction. Compared to conventional nanomaterials ...
Bio & Medicine
Jul 3, 2025
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94
Imagine that you want to know the plot of a movie, but you only have access to either the visuals or the sound. With visuals alone, you'll miss all the dialog. With sound alone, you will miss the action. Understanding our ...
Biotechnology
Jul 1, 2025
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28
Three-dimensional immunohistochemistry (3D-IHC) has transformed our ability to visualize the spatial arrangement of cells and molecules in intact tissues. However, traditional methods are often time-consuming and suffer from ...
Bio & Medicine
Jun 19, 2025
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35
As veterinary medicine evolves, new technologies, procedures, and treatments are expanding options for diagnosing, managing, and treating a wide range of pet illnesses.
Veterinary medicine
Jun 12, 2025
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