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.
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
0
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
0
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
0
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
0
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
0
20
Recent advances in electronics and optics have opened new possibilities for terahertz (THz) waves—an invisible type of light that falls between infrared light and microwaves on the spectrum. The use of THz scattering for ...
Optics & Photonics
Jun 9, 2025
0
26
Nanomedicines, especially those based on nanoparticles, are revolutionizing health care in terms of both diagnostics and therapeutics. These particles, often containing metals like iron or gold, can serve as contrast agents ...
Bio & Medicine
May 29, 2025
0
33
Metalenses represent a revolutionary advancement in optical technology. Unlike conventional microscope objectives that rely on curved glass surfaces, metalenses employ nanoscale structures to manipulate light at the subwavelength ...
Optics & Photonics
May 28, 2025
0
134
Imagine a medical scanner that works faster and produces clearer images, or a radiation detector that pinpoints tiny traces of radioactive material with unprecedented accuracy. These futuristic possibilities are a step closer ...
Nanophysics
May 20, 2025
0
33
A research team affiliated with UNIST has announced the development of an innovative nonlinear imaging technique capable of visualizing internal biological tissues in 3D using ordinary light sources, such as laser pointers, ...
Bio & Medicine
May 20, 2025
0
38
