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Tag: Imaging
New Imaging Technique Reveals Detailed Map of Brain’s Blood Flow in 3D
Researchers from the University of Zurich and ETH Zurich have developed an advanced optical microscopy technique that enables the study of the brain’s vascular networks in unprecedented detail and on a large scale.
Shape optimization for high efficiency metasurfaces: theory and implementation
Metasurfaces are formed by engineering a glass surface with an array of microscopic features, or meta-atoms. Although different optical functionalities can be obtained by changing only the pattern, the resulting metasurfaces often lack the necessary efficiency for many applications. In this report, scientists from Corning and Harvard University collaborate to demonstrate an inverse-design method that optimizes efficiency while respecting fabrication constraints. These results represent a step forward in making practical metasurfaces for broader applications.
NIBIB initiative expands the biomedical engineering, imaging, and technology acceleration aspirations of HBCUs
The National Institute of Biomedical Imaging and Bioengineering has designed an initiative called Enhancing Biomedical Engineering, Imaging, and Technology Acceleration (eBEITA) at HBCUs. Recently, NIBIB made its first round of eBEITA grants to two HBCUs.
Arbitrarily rotating polarization direction and manipulating phases in linear and nonlinear ways using programmable metasurface
Independent controls of various properties of electromagnetic (EM) waves are crucially required in a wide range of applications. Towards this goal, scientists in China proposed the concept and general theory of space-time-polarization-coding (STPC) metasurface, which adds the functionality of arbitrarily controlling polarization direction compared to space-time-coding (STC) metasurfaces. The proposed approach has a wide range of applications in various areas, such as imaging, data storage, and wireless communication.
Measuring the computer chips to identify defects using computational imaging and EUV (extreme ultra-violet) light.
Measuring computer chips to identify defects during manufacturing is crucial to improve production yield. Scientists from Delft and Utrecht investigated a novel imaging technique using EUV light—a high-energy short-wavelength radiation—to examine the 3D nanoscale structures on the chips. This technique eliminates the need to use any imaging system containing expensive EUV reflective mirrors in the measurement tool. Instead, images are reconstructed computationally from acquired diffraction data, resulting in a significant cost reduction.
Metalenses phase characterization by multi-distance phase retrieval
Metalens have gained significant attention for their unique functions and potential applications, and it is important to characterize the phase modulation of metalens. We present a phase characterization method of metalens based on field scanning. We extend our investigation to measure the phase distribution of the metalens operating in NIR and identify the impact of defects on phase. Additionally, we conduct a comparative analysis of the metalens in air and ethanol and observe the variations.
Pyramid Optical Networks for Unidirectional Image Magnification and Demagnification
UCLA researchers introduced an innovative design for diffractive deep neural networks (D2NNs). This new architecture, termed Pyramid-D2NN (P-D2NN), achieves unidirectional image magnification and demagnification, significantly reducing the number of diffractive features required.
How Do You Take a Picture of a Cell? CHLA’s Cellular Imaging Core Has the Answers
They’re colorful. They’re fluorescent. And they wouldn’t look out of place hanging in a modern art museum.They are the photos captured by the Cellular Imaging Core, one of 10 research cores at The Saban Research Institute of Children’s Hospital Los Angeles.
Optical Imager Captures Amplitude and Phase Information without Digital Processing
UCLA researchers introduced an all-optical complex field imager that captures both amplitude and phase information of optical fields using an intensity-based sensor array. This device employs optimized diffractive surfaces to eliminate the need for digital processing in conventional complex imaging techniques, improving imaging speed and reducing computational demand.
Tiny displacements, giant changes in optical properties
In a study published online March 23 in Advanced Materials, researchers from Washington University in St. Louis and University of Southern California reveal a new pathway for designing optical materials using the degree of atomic disorder. The researchers anticipate developing crystals that enable advanced infrared imaging in low light conditions, or to enhance medical imaging devices.
New Technique Lets Scientists Create Resistance-Free Electron Channels
Researchers have taken the first atomic-resolution images and demonstrated electrical control of a chiral interface state – an exotic quantum phenomenon that could help researchers advance quantum computing and energy-efficient electronics.
UC San Diego Receives $6.7M to Develop Whole-Body Inflammation Imaging
Researchers at UC San Diego have received new grants that will help develop full-body imaging techniques to detect inflammation, which is currently very difficult to visualize in the clinic.
LLNL leads initiative to advance muon-based imaging
Scientists at Lawrence Livermore National Laboratory (LLNL) are working to change the speed of muon-based imaging with a new initiative called Intense and Compact Muon Sources for Science and Security (ICMuS2).
Virtual drug quiets noise in heart tissue images
Researchers at Washington University in St. Louis have developed a new computational approach to removing movement in images of expanding and contracting heart cells and tissues. By computationally removing movement, the algorithm mimics a drug’s action in stopping the heart, without compromising cellular structure or tissue contractility.
Seven entrepreneurs join Innovation Crossroads seventh cohort
Seven entrepreneurs will embark on a two-year fellowship as the seventh cohort of Innovation Crossroads kicks off this month at the Department of Energy’s Oak Ridge National Laboratory. Representing a range of transformative energy technologies, Cohort 7 is a diverse class of innovators with promising new companies.
NeuWS camera answers ‘holy grail problem’ in optical imaging
Engineers from Rice University and the University of Maryland have created full-motion video technology that could potentially be used to make cameras that peer through fog, smoke, driving rain, murky water, skin, bone and other media that reflect scattered light and obscure objects from view.
Enhancing carbon dioxide reduction
Researchers at Kanazawa University report in ACS Nano how ultrathin layers of tin disulfide can be used to accelerate the chemical reduction of carbon dioxide — a finding that is highly relevant for our quest towards a carbon-neutral society.
As patients wait for imaging results, research links delays with how online radiologists get paid
Online workflow systems for off-site radiologists are one reason for health care delays that cost hospitals money and test the patience of patients, according to West Virginia University research.
University Hospitals Portage Medical Center Brings New Healthcare Investments to Community
University Hospitals Portage Medical Center has made a number of recent investments in various areas to better serve patients in the community. Throughout the next few months, the hospital will be opening a new Breast Health Center, renovating its Cath Lab, enhancing women’s health services, and making new improvements in nuclear medicine, imaging, and across its facilities.
New blue light technique could enable advances in understanding nanoscale technologies
With a new microscopy technique that uses blue light to measure electrons in semiconductors and other nanoscale materials, a team of Brown University researchers is opening a new realm of possibilities in the study of these critical components, which can help power devices like mobile phones and laptops.
Ochsner Health Announces New Aortic Center; Subscribes to Cutting-Edge Imaging with Cydar Technology
To save lives and improve outcomes for patients with aortic disease of all kinds, Ochsner Health is excited to announce the establishment of The Ochsner Aortic Center. Outfitted with cutting-edge imaging technology that allows medical staff to make faster, easier, and safer decisions, this dedicated, comprehensive aortic center is now the only of its kind in the Gulf South.
World’s fastest burst-mode X-ray camera hits the road
Sandia National Laboratories has partnered with Albuquerque-based startup Advanced hCMOS Systems to commercialize ultrafast imaging technology invented at the labs and used extensively in fusion research.
Hackensack Meridian JFK University Medical Center Offers Innovative PSMA PET Imaging Test to Aid in Diagnosis of Prostate Cancer
“The availability of the PYLARIFY test at JFK University Medical Center means patients with prostate cancer no longer need to travel to obtain PSMA-targeted PET imaging. They can get this innovative technology close to home,” said Amie Thornton, president, chief hospital executive, JFK University Medical Center.
UC Irvine scientists create new chemical imaging method
Irvine, Calif., Jan. 4, 2023 – A new visualization technology that captures spectral images of materials in the mid-infrared part of the electromagnetic spectrum has been developed by scientists at the University of California, Irvine. The discovery, which was recently featured on the cover of the journal Science Advances, promises to help researchers and industries across many fields, including medical and tech, quickly visualize the chemical composition of various materials or tissues.
Intelligent programmable meta-imagers: A timely approach to task-specific, noise-adaptive sensing
Sensing systems are becoming prevalent in many areas of our lives, such as in ambient-assisted health care, autonomous vehicles, and touchless human-computer interaction.
Imaging technique may measure absorbed dose from radiation therapy
Abhinav Jha, at the McKelvey School of Engineering, wants to use novel imaging to better understand how people absorb radiation therapy. His team won a four-year $2.2 million National Institutes of Health (NIH) grant for the study, which aims to guide treatment decisions.
Entangled photons to take pictures in the dark
During photosynthesis, a chemical reaction jumpstarted by sunlight breaks down chemicals into the food plants need to repair themselves and to grow. But as researchers attempt to better understand photosynthesis, they have hit a roadblock when it comes to being able to see the fundamental structures and processes in a plant.
Study Explores Link Between Shark Nose Shape, Size and Sensitivity of Smell
Differences in sharks’ olfactory systems are of interest not only because of their known incredible sense of smell but also because they have been around since before the dinosaurs. They managed to thrive in every known marine habitat for millions of years – their sense of smell may have been key. A study is the first to quantify olfactory organ morphology by examining rosette shape and other internal structures among a diverse set of shark species using dissections, phylogenetic comparisons, and a fairly new technique, called diffusible iodine‐based contrast‐enhanced computed tomography imaging. Results reveal that the organs did not change in shape or number of lamellae throughout the life stages, suggesting that olfaction is a key sensory modality throughout the life of elasmobranch fishes.
Society of Women Engineers bestows awards on 3 Sandia staff, including its highest honor
The Society of Women Engineers has bestowed awards on three Sandia National Laboratories employees. Senior scientist Tina Nenoff received the society’s highest honor, the Achievement Award.
New Study in JNCCN Suggests Way to Predict Outcomes with High Accuracy Prior to Surgery for Pancreatic Cancer Patients
New research in the September 2022 issue of JNCCN—Journal of the National Comprehensive Cancer Network finds the use of positron emission tomography (PET) with 18-fluorodeoxyglucose (FDG) tracer adds significant prognostic benefit in objectively assessing neoadjuvant chemotherapy response in borderline resectable/locally advanced pancreatic cancer patients prior to surgery.
High-Tech Imaging Offers New Way to Detect Signs of Early Glaucoma
Mount Sinai study shows flavoprotein fluorescence could serve as new biomarker
High-tech imaging reveals details about rare eye disorder
Using a new imaging technique, researchers from the National Eye Institute have determined that retinal lesions from vitelliform macular dystrophy (VMD) vary by gene mutation. Addressing these differences may be key in designing effective treatments for this and other rare diseases. NEI is part of the National Institutes of Health.
Penn Medicine Awarded $9 Million to Advance Study of Technology that Lights Up Lung Cancer Tumors
Building on Penn Medicine’s years of research and use of imaging technology that illuminates tumor tissue—helping clinicians more easily detect and remove it—the Perelman School of Medicine at the University of Pennsylvania has received a five-year, $9 million research grant from the National Cancer Institute (NCI) to push the field forward, particularly for lung cancer patients.
Amid Global Shortage, Study Shows How to Cut Contrast Dye Use 83%
As a worldwide shortage of contrast dye for medical imaging continues, a new UC San Francisco research letter in JAMA quantified strategies medical facilities can employ to safely reduce dye use in computed tomography (CT) by up to 83%. CT is the most common use for the dye.
Acid Reflux in People with Barrett’s Esophagus May Change Cells to Cause Cancer
Article title: A human Barrett’s esophagus organoid system reveals epithelial-mesenchymal plasticity induced by acid and bile salts Authors: Qiuyang Zhang, Ajay Bansal, Kerry B. Dunbar, Yan Chang, Jianning Zhang, Uthra Balaji, Jinghua Gu, Xi Zhang, Eitan Podgaetz, Zui Pan, Stuart…
Penn Medicine Study Reveals Imaging Approach with Potential to Detect Lung Cancer Earlier, at the Cellular Level
Researchers at the Abramson Cancer Center at the University of Pennsylvania have found a way to identify lung cancer at the cellular level in real time during a biopsy, offering promise in the ability to detect the disease earlier and with more confidence. The research is published this week in Nature Communications.
TVT 2022 Program Now Available
The program for TVT 2022: The Structural Heart Summit is now available online. An annual meeting from the Cardiovascular Research Foundation (CRF), TVT features cutting-edge research and techniques for structural heart interventions and will take place June 8-10, 2022 at the Sheraton Grand Chicago Riverwalk in Chicago, Illinois.
Setting the Stage for the 6G Era
Wrapping up the HKIAS Distinguished Lecture Series on Electronics and Photonics was Professor Chi Hou Chan, the Chair Professor of the Department of Electrical Engineering (EE) at the City University of Hong Kong (CityU).
Data Deep Dive
A new tool makes high-resolution imaging data on human tissues easier to understand and use
Study Finds That PCI Guided by FFR Did Not Meet Noninferiority for One-Year Outcomes Compared to Bypass Surgery
The primary results of the Fractional Flow Reserve Versus Angiography for Multivessel Evaluation (FAME) 3 trial found that percutaneous coronary intervention (PCI) guided by fractional flow reserve (FFR) did not meet noninferiority for one-year adverse events compared to coronary artery bypass grafting (CABG) in patients with three-vessel coronary artery disease. Patients with a low SYNTAX score (which measures the complexity of coronary artery disease) had less incidence of adverse events compared to those with intermediate or high SYNTAX scores, and in this cohort of patients PCI performed more favorably.
Study Finds QFR-Guided Lesion Selection Leads to Better PCI Outcomes Compared with Conventional Angiography
The FAVOR III China trial found that lesion selection for percutaneous coronary intervention (PCI) using the non-invasively assessed physiologic measurement quantitative flow ratio (QFR) improved outcomes for PCI compared with a standard angiography-guided strategy.
Lithium imaging method could shine new light on bipolar disorder, treatment
Researchers reporting in ACS Central Science developed a method for imaging lithium in living cells, allowing them to discover that neurons from bipolar disorder patients accumulate higher levels of lithium than healthy controls.
Science snapshots from Berkeley Lab
New Berkeley Lab breakthroughs: engineering chemical-producing microbes; watching enzyme reactions in real time; capturing the first image of ‘electron ice’; revealing how skyrmions really move
NCCN Policy Summit Explores the Promise and Challenges of New Technologies in Cancer Care
Participants at National Comprehensive Cancer Network (NCCN) Virtual Policy Summit discuss the potential for imaging and other emerging technologies to improve cancer care while not increasing disparities.
The Human Genome at Super Resolution
Five-year NIH grant funds new Center for Genome Imaging @ HarvardMed, three other institutions.
Let’s get small: New Argonne method greatly improves X-ray nanotomography resolution
Using X-rays to study batteries and electronics at nanometer scales requires extremely high resolution. Argonne scientists led an effort to build a new instrument and devise a new algorithm to greatly improve the resolution for nanotomography.
Eyes Provide Peek at Alzheimer’s Disease Risk
Amyloid plaques found in the retinas of eyes may be an indicator of similar plaques in the brain, a hallmark of Alzheimer’s disease, and may provide a more visible biomarker for detecting disease risk.
SLAS Discovery’s August Special Collection “Approaches for Prioritizing High-Quality Chemical Matter in Chemical Probe and Drug Discovery” Now Available
The August edition of SLAS Discovery is a Special Collection featuring the cover article, “Approaches for Prioritizing High-Quality Chemical Matter in Chemical Probe and Drug Discovery” by Jayme L. Dahlin, M.D., Ph.D. (Brigham and Women’s Hospital, Boston, MA, USA).
Senator Toni Atkins Visits Hospital to Recognize Plans for New Hillcrest Campus
Senate President Pro Tempore Toni Atkins visited UC San Diego Medical Center today to recognize a $30 million allocation in the 2021-2022 California state budget that will support the redevelopment of the new Hillcrest hospital.