Articles tagged with Medical Imaging
A new algorithm corrects motion blur in single-photon images, allowing for high-quality pictures even with multiple objects moving independently. The approach accurately estimates individual object motion and groups pixels by similar motion, enabling deblurring of each region independently.
A team of scientists has developed a phonon probe that uses optical fibers to create high-resolution 3D images of biological cells and tissue. The device achieves lateral resolution of 2.5 μm and can measure object height with 45 nm precision, opening up new possibilities for non-destructive diagnostics.
Researchers from Tohoku University developed a novel imaging method to visualize respiratory activity of 3D tissue models. The method uses potential step-based electrochemiluminescence (ECL) imaging to track oxygen consumption and produce luminescent signals.
The American Roentgen Ray Society (ARRS) honors all members with the 2021 ARRS Gold Medal for their selfless service on the frontlines of the COVID-19 pandemic. The award recognizes their distinguished contributions to radiology and its impact on patient care.
Achuta Kadambi's article in Science explores how medical device physics can perpetuate bias across racial and gender lines. He suggests quantifying sample fairness and recalibrating performance metrics to address these issues.
Researchers investigated how observers perform in 2D and 3D image localization tasks, finding that they often treat volumetric images as stacks of independent 2D images. This leads to inefficiencies in target localization, especially for smaller targets in 3D images.
Researchers developed a multiwavelength OR-PAM system based on a single laser source, enabling simultaneous multicontrast imaging of hemoglobin concentration, blood flow speed, blood oxygen saturation, and lymphatic concentration. This innovation shortens imaging time and improves accuracy for functional imaging in biological tissues.
A Kanazawa University researcher has developed a method to speed up non-rigid point set registration, a fundamental problem in computing with extensive applications in autonomous driving, medical imaging, and robotic manipulation. The proposed technique reduces computing time for large point sets, outperforming state-of-the-art approac...
Scientists have developed a high-tech fluorescence microscopy technique allowing them to film cells inside the breast for the first time. This new protocol provides detailed instructions on how to capture hi-res movies of cell movement, division and cooperation in hard-to-reach regions of breast tissue.
Researchers have developed a novel method for producing highly efficient X-ray detectors using 3D aerosol jet-printing, enabling improved performance of medical imaging devices. The new detectors utilize perovskites and graphene, resulting in record sensitivity and a four-fold improvement over existing technology.
Researchers at UMass Lowell have developed a new 3D imaging technique that uses specialized dye to better visualize human tissue inside the body. The technology, funded by the Massachusetts Life Sciences Center, has the potential to revolutionize medical imaging and improve diagnosis accuracy for breast cancer and other diseases.
A new Position Statement from UK stakeholders highlights the limited evidence supporting routine follow-up brain tumor imaging. Researchers propose future studies to assess cost effectiveness, quality of life, and treatment response to determine the value of interval imaging.
Scientists at Martin-Luther-University Halle-Wittenberg have fully determined the internal structure of single-chain nanoparticles (SCNPs) for the first time. The study reveals a 'nano-pocket' that protects dye or other molecules, enabling new imaging techniques and biomedical applications.
A hybrid approach combining hardware- and computer vision-based tracking improves the accuracy of laparoscopic ultrasound imaging. By using a custom tracking mount with EM sensors and CV markers, the system can track the transducer's pose with high accuracy.
Researchers at Nagoya University have developed a new imaging technique that can assess the quality of high-energy muon beams. This innovation allows for better understanding and control of these beams in various applications such as non-destructive X-ray fluorescence spectroscopy and cancer radiotherapy.
Scientists have developed a new method for analyzing the structure of skin using T-rays, which can help diagnose and treat conditions like eczema and psoriasis. The technique measures the refractive index of skin to determine hydration levels, providing valuable information on skin thickness and properties.
Researchers at EMBL Heidelberg used 3D imaging techniques to visualize the replication cycle of SARS-CoV-2 in infected cells. The study reveals massive changes in cellular architecture, including the creation of mini replication compartments where viral genomes are amplified.
A new optical imaging technology called PANORAMA has been developed to detect and study nanoscale objects as small as 25 nanometers in diameter. This technology uses unscattered light to monitor changes in transmission and determine the target's characteristics, making it possible to view nanoparticles directly without labeling.
Scientists have developed a platform using DNA self-assembly to create 3D nanoscale architectures that can conduct electricity without resistance. These structures can be used in signal amplifiers, ultrasensitive magnetic field sensors, and other quantum devices.
Research by Matthew Staymates found N95 masks with exhalation valves ineffective at filtering respiratory droplets. Masks without valves block most droplets, making them a more effective choice for disease prevention.
Linked color imaging (LCI) is more effective than white light imaging (WLI) in detecting tumors in the upper gastrointestinal tract. Researchers found that LCI detected 1.67 more neoplastic lesions during the first examination, and reduced overlooked neoplasms compared to WLI.
Researchers developed a compact, low-cost system that enables fast 3D hyperspectral imaging. The system uses a monochrome camera to capture both depth information and color information, allowing for improved analysis of real-world scenes and objects.
Patients with COVID-19 show a higher prevalence of thromboembolism and solid-organ infarction compared to those without the disease. Hypercoagulability is suggested by increased findings in abdominal and extremity macrothrombi, necessitating radiologists to consider COVID-19 diagnosis.
Researchers at Penn State develop a new type of imaging that uses reconfigurable particle-based masks to take multiple shots of an object, improving disease diagnosis and microscopy. The technology may also lead to thinner cellphone cameras by minimizing the space requirement.
Scientists have developed biocompatible TeSex nano-alloys that eliminate toxicity and enhance theranostic performances for precision medicine. The nano-alloys enable high-efficacy photothermal therapy under multimodal imaging guidance.
Researchers at George Mason University are developing a contactless fingertip imaging system to detect COVID-19. The system utilizes sweat metabolite biometrics, which is non-invasive and potentially more accurate than current temperature checks.
Advanced X-ray imaging reveals details on ancient cat, bird and snake mummification, including possible causes of death and complex ritualistic behavior. The technique provides insights into conditions in which animals were kept and their relationships with humans.
Researchers develop a non-toxic Cs2Ag0.6Na0.4In0.85Bi0.15Cl6 double perovskite scintillator for high-performance X-ray imaging with low doses, enabling high-resolution images in medical and industrial applications.
Salk researchers developed a new imaging technique to study actin's function in mitochondrial division, revealing its accumulation at fission sites. The findings provide insights into mitochondrial dysfunction linked to cancer, aging, and neurodegenerative diseases.
A new study describes a novel label-free imaging technique that can differentiate active T cells from those in a quiescent state. The method, which uses autofluorescence detection, is non-damaging and doesn't alter the behavior of the cell, offering advantages over traditional antibody-based methods.
Researchers at Beckman Institute develop label-free imaging to evaluate fertility in sperm samples, enabling faster and more accurate analysis. The technique uses phase imaging with computational specificity to predict parameters critical to fertility.
Researchers used imaging mass spectrometry and immunohistochemistry to identify novel lipid and protein tumor markers for head and neck squamous cell carcinoma. These markers, including S100A8 and S100A9, show promise as potential diagnostic tools and may provide insights into the pathophysiology of HNSCC.
The Resource for Quantitative Elemental Mapping for the Life Sciences (QE-Map) will enable unprecedented insights into metal role in human health and disease. QE-Map will pioneer cutting-edge imaging and detection technologies to deepen understanding of interplay between metals and biological processes.
Researchers have developed a new non-invasive ultrasound method that compensates for distortions in soft tissue structure, providing ideal resolution and contrast optimized for each pixel. This approach has applications in biomedical diagnosis, optical microscopy, and industrial material inspection.
The American Roentgen Ray Society reaffirms its mission to improve health through a community of allies dedicated to knowledge and quality care for all. Recent events highlighting racial injustice in the US healthcare system have prompted ARRS to reiterate its commitment to addressing these inequities.
Researchers at the University of Notre Dame created a new class of near-infrared fluorescent dyes by introducing a voluminous shield to protect against photobleaching. The dye, called s775z, provided stable fluorescence and was quickly cleared from the body, making it suitable for biomedical imaging applications.
Researchers developed a new 3D imaging technique called harmonic optical tomography, which uses holographic information to generate 3D images of biological samples. This technique has the potential to assist with cancer and disease diagnoses by providing critical information on tissue structure and collagen fiber orientation.
A new technique, multi-spectral optoacoustic mesoscopy (MSOM), enables high-resolution visualization of tumor tissue patterns without the need for surgical biopsies. MSOM allows researchers to study blood supply patterns, oxygenation levels, and drug efficacy with greater accuracy.
Researchers have developed genetically-encoded X-ray-sensitive tags for site-specific labeling of protein-of-interest in mammalian cells. This enables endogenous labeling of diverse molecules and subcellular structures with an ultrahigh spatial resolution of ~30 nm. The high photostability of these tags allows long-term observation of ...
Researchers successfully image atomic nuclei in three materials using a new microscopy type called ANXRI, which combines aberration-corrected STEM and EDS. The accuracy of ANXRI reaches 1 pm, allowing for adjustable individual imaged sizes of atomic nuclei.
Researchers at North Carolina State University have discovered a polymer composite material with bismuth trioxide particles that can effectively shield against ionizing radiation while being lightweight and non-toxic.
The perovskite-based detector is 100 times more sensitive than conventional silicon-based detectors, enabling low-dose dental and medical images with reduced risks. The new technology also enhances resolution in security scanners and X-ray research applications.
Researchers warn of 'exaggerated' AI study claims, highlighting poor quality evidence and methodological flaws in studies. The majority of deep learning medical imaging studies have high bias and lack transparency, fueling hype for rapid implementation.
Researchers at EPFL have created a nanoscale device that generates extremely high-power signals in just a few picoseconds, producing high-power THz waves. This technology has the potential to revolutionize security and medical imaging systems, as well as faster wireless communications.
A new experimental protocol developed by EPFL's Laboratory for Soft Bioelectronic Interfaces (LSBI) helps test and validate soft, personalized implants. The four-step process includes developing anatomically accurate prototypes and fine-tuning through tests.
A University of Colorado Cancer Center study found that African American patients were half as likely as non-Hispanic whites to receive PET-CT imaging for non-small cell lung cancer, while Hispanics received it 70% as frequently. This disparity may be due to limited access to specialized imaging equipment and unconscious bias.
The Rutgers team's robotic device combines AI, near-infrared, and ultrasound imaging to accurately pinpoint blood vessels, outperforming human healthcare professionals in complex tasks. The device reduces injuries and improves procedure efficiency, enabling healthcare professionals to focus on other critical aspects of medical care.
A study published in Radiology analyzed chest CT images and X-rays of 14 teenagers with EVALI, revealing characteristic ground-glass opacity and subpleural sparing. The findings suggest that CT imaging is crucial for early diagnosis and timely management of the condition in pediatric patients
The Beckman Institute has developed imaging techniques that capture more information about a tissue compared to traditional methods, allowing for better visualization of extracellular vesicles. These vesicles are known to increase in number and be associated with cancer, particularly breast cancer cells.
Scientists developed SR-FACT microscopy, combining label-free ODT and two-dimensional fluorescence microscopy to visualize cellular environment. The technique revealed novel subcellular structures like dark-vacuole bodies interacting with organelles.
Researchers made intact human organs transparent using microscopic imaging, revealing complex structures at the cellular level. The technology, SHANEL, enables detailed analysis of large-scale human tissues and organs, accelerating the development of functional artificial organs.
Researchers have developed a new camera capable of taking up to 1 trillion pictures per second of transparent objects, such as cells and shockwaves. The camera technology combines high-speed photography with phase-contrast microscopy, allowing for real-time imaging of ultrafast phenomena in transparent materials.
Researchers developed a new laser-based system that can image around corners in real time, enabling applications such as detecting hazards or pedestrians in self-driving cars. The system uses deep learning to reconstruct hidden objects at high resolutions and speeds.
Biomedical engineers at Duke University have created a system that allows real-time observations of individual cells in the colon of a living mouse. This breakthrough enables researchers to study the digestive system's microbiome, inflammatory bowel disease, and colon cancer, as well as explore potential treatments for gastrointestinal...
A new imaging technique combining machine learning and optical coherence tomography detects precancerous and cancerous tissue with 100% accuracy, according to a pilot study. The technology may assist traditional colonoscopy by providing real-time, non-invasive imaging for deeper precancerous polyps and early-stage cancers.
A new imaging technology assesses conjunctival goblet cells with high definition and contrast, overcoming limitations of existing methods. This non-invasive approach enables precise diagnosis of dry eye syndromes and evaluation of treatment effects, paving the way for precision medicine.
Researchers studied gunshot injury patterns and found that patients with chest or abdominal wounds were more likely to be readmitted to the hospital. The study aimed to identify injury patterns and predict future outcomes for victims of gun violence.
A team of researchers used micro-CT imaging to study the composition and age of 22 ancient ivory manikins, found in the Duke University collection. The study revealed that most of the manikins were composed of true elephant ivory, while some contained alternative materials such as antler or whale bone.
The CUHK Faculty of Engineering has developed a novel imaging approach that enables faster 3D imaging for biomedical research. The new method uses compressive sensing and multi-focus laser scanning to reduce the number of measurements by up to 90%, resulting in significantly faster image acquisition times.
Researchers have developed a portable, inexpensive, and easy-to-use microlens that simultaneously acquires 3D space and polarization information. This allows for the creation of 4D images with improved depth resolution, potentially enabling applications in medical imaging, communications, displays, and remote sensing.