Articles tagged with Ultrasound
Comprehensive exploration of living organisms, biological systems, and life processes across all scales from molecules to ecosystems. Encompasses cutting-edge research in biology, genetics, molecular biology, ecology, biochemistry, microbiology, botany, zoology, evolutionary biology, genomics, and biotechnology. Investigates cellular mechanisms, organism development, genetic inheritance, biodiversity conservation, metabolic processes, protein synthesis, DNA sequencing, CRISPR gene editing, stem cell research, and the fundamental principles governing all forms of life on Earth.
Comprehensive medical research, clinical studies, and healthcare sciences focused on disease prevention, diagnosis, and treatment. Encompasses clinical medicine, public health, pharmacology, epidemiology, medical specialties, disease mechanisms, therapeutic interventions, healthcare innovation, precision medicine, telemedicine, medical devices, drug development, clinical trials, patient care, mental health, nutrition science, health policy, and the application of medical science to improve human health, wellbeing, and quality of life across diverse populations.
Comprehensive investigation of human society, behavior, relationships, and social structures through systematic research and analysis. Encompasses psychology, sociology, anthropology, economics, political science, linguistics, education, demography, communications, and social research methodologies. Examines human cognition, social interactions, cultural phenomena, economic systems, political institutions, language and communication, educational processes, population dynamics, and the complex social, cultural, economic, and political forces shaping human societies, communities, and civilizations throughout history and across the contemporary world.
Fundamental study of the non-living natural world, matter, energy, and physical phenomena governing the universe. Encompasses physics, chemistry, earth sciences, atmospheric sciences, oceanography, materials science, and the investigation of physical laws, chemical reactions, geological processes, climate systems, and planetary dynamics. Explores everything from subatomic particles and quantum mechanics to planetary systems and cosmic phenomena, including energy transformations, molecular interactions, elemental properties, weather patterns, tectonic activity, and the fundamental forces and principles underlying the physical nature of reality.
Practical application of scientific knowledge and engineering principles to solve real-world problems and develop innovative technologies. Encompasses all engineering disciplines, technology development, computer science, artificial intelligence, environmental sciences, agriculture, materials applications, energy systems, and industrial innovation. Bridges theoretical research with tangible solutions for infrastructure, manufacturing, computing, communications, transportation, construction, sustainable development, and emerging technologies that advance human capabilities, improve quality of life, and address societal challenges through scientific innovation and technological progress.
Study of the practice, culture, infrastructure, and social dimensions of science itself. Addresses how science is conducted, organized, communicated, and integrated into society. Encompasses research funding mechanisms, scientific publishing systems, peer review processes, academic ethics, science policy, research institutions, scientific collaboration networks, science education, career development, research programs, scientific methods, science communication, and the sociology of scientific discovery. Examines the human, institutional, and cultural aspects of scientific enterprise, knowledge production, and the translation of research into societal benefit.
Comprehensive study of the universe beyond Earth, encompassing celestial objects, cosmic phenomena, and space exploration. Includes astronomy, astrophysics, planetary science, cosmology, space physics, astrobiology, and space technology. Investigates stars, galaxies, planets, moons, asteroids, comets, black holes, nebulae, exoplanets, dark matter, dark energy, cosmic microwave background, stellar evolution, planetary formation, space weather, solar system dynamics, the search for extraterrestrial life, and humanity's efforts to explore, understand, and unlock the mysteries of the cosmos through observation, theory, and space missions.
Comprehensive examination of tools, techniques, methodologies, and approaches used across scientific disciplines to conduct research, collect data, and analyze results. Encompasses experimental procedures, analytical methods, measurement techniques, instrumentation, imaging technologies, spectroscopic methods, laboratory protocols, observational studies, statistical analysis, computational methods, data visualization, quality control, and methodological innovations. Addresses the practical techniques and theoretical frameworks enabling scientists to investigate phenomena, test hypotheses, gather evidence, ensure reproducibility, and generate reliable knowledge through systematic, rigorous investigation across all areas of scientific inquiry.
Study of abstract structures, patterns, quantities, relationships, and logical reasoning through pure and applied mathematical disciplines. Encompasses algebra, calculus, geometry, topology, number theory, analysis, discrete mathematics, mathematical logic, set theory, probability, statistics, and computational mathematics. Investigates mathematical structures, theorems, proofs, algorithms, functions, equations, and the rigorous logical frameworks underlying quantitative reasoning. Provides the foundational language and tools for all scientific fields, enabling precise description of natural phenomena, modeling of complex systems, and the development of technologies across physics, engineering, computer science, economics, and all quantitative sciences.
Researchers have developed a new method using ultrasound to measure fluid in the lungs, which could help diagnose scarring and fibrosis. The technique allows for quantitative information on lung fluid levels, potentially tracking treatment progress more effectively.
Researchers are developing a portable, painless 3-D ultrasound device that can detect swelling in the optic nerve sheath, indicating potential brain damage. The device aims to provide instantaneous evidence of head injuries and is expected to be accurate compared to existing MRI and CT technology.
Researchers at the University of Pittsburgh are developing a hybrid exoskeleton that combines functional electrical stimulation (FES) with powered exoskeletons. The system will utilize wearable ultrasound sensors to measure muscle fatigue, allowing for real-time sensing and prediction of muscle function.
A team of University College London researchers created a method for generating ultrasound via the photoacoustic effect by tailoring optoacoustic surface profiles. They used 3D printing to create samples with specific shapes, allowing them to control where sound fields would focus and even create continuous shapes.
Researchers found that ED patients with ultrasounds interpreted by nonradiologists underwent more follow-up imaging studies, with a mean increase of 1.08, 1.22, and 1.34 procedures within seven, fourteen, and thirty days respectively.
A panel of international experts recommends abandoning the costly and ineffective treatment, citing a lack of benefit for outcomes important to patients. The guideline advises against using ultrasound therapy for bone healing after fracture, suggesting future research focus on other interventions that may speed up healing.
A new digital library of artery sounds recorded during Doppler ultrasound procedures will be created to help clinicians better interpret the data. The database aims to increase accuracy and confidence in diagnosing cardiovascular diseases such as heart attacks and strokes.
Northwestern University scientists have developed a tiny, transparent device that can detect ultrasound waves, potentially helping diagnose diseases like macular degeneration and diabetes. The Micro-ring resonator detector uses optical ultrasound detection methods to create high-resolution images of biological materials.
A study published in Academic Emergency Medicine found that lung ultrasound enhances pretest risk stratification for pulmonary embolism, detecting alternative diagnoses such as pneumonia or pleural effusion. This improves diagnostic accuracy and reduces unnecessary radiation exposure.
Researchers at the University of Rochester have developed a new beam pattern, dubbed the 'needle-pulse' beam, which can create incredibly thin and intense beams that expand outward again after a mere nanosecond. This innovation has the potential to revolutionize fields such as ultrasound, radar, and microscopy.
Researchers developed an acoustofluidic chip to concentrate fluorescently labeled biomarkers using ultrasound, enabling the detection of smaller particles and boost their signal. The technique shows promise for point-of-care diagnostic applications, including the potential analysis via smartphone apps.
Biomedical engineers at Johns Hopkins create a method to deliver and release concentrated amounts of drugs to the brain using ultrasound pulses. The technique has the potential to advance many therapies and research studies, minimizing side effects and potentially bringing new treatments to humans within a year or two.
A study published in The Lancet found that adding an MRI scan after a 20-week ultrasound scan can increase the accuracy of diagnosing fetal brain abnormalities, with almost all scans being correct. This extra information helps doctors give more accurate diagnoses and advice to parents.
Researchers at the University of Alberta have developed a new technique that uses focused ultrasound and nanoparticles to enhance cancer biomarker detection in blood samples. This non-invasive method has been shown to be as accurate as traditional biopsies, with potential applications for personalized medicine.
The new device produces clearer images through 3D printed lenses, allowing doctors and surgeons to have greater control and precision in non-invasive diagnostic procedures and medical surgeries. The technology has the potential to reduce image distortions and accurately differentiate cancerous from non-cancerous soft tissue.
Researchers have developed a technique using microbubbles and ultrasound to deliver drugs directly to the brain, opening the blood-brain barrier. This method shows promise in treating neurodegenerative diseases such as Parkinson's and Alzheimer's.
Researchers at Drexel University have developed a portable device that uses low-frequency ultrasound to heal chronic wounds. The device, which is battery-powered and compact, has shown promising results in clinical trials, with patients experiencing improved healing by 15% per week.
A team of German researchers has developed a way to use microbubbles to power micro-robots wirelessly, offering multiple advantages over previous techniques. The approach allows for individual addressing, no on-board electronics, and scalability to sub-millimeter size.
Three new studies provide insight into the effects of Zika virus on congenital brain damage in babies and adults with neurological disorders. The research highlights common CT brain findings, including decreased brain volume and calcifications, as well as MRI findings such as orbital injuries and anatomical changes in brain tissue.
Researchers at TUM develop a new method for non-destructive testing using ultrasound that combines a computerized model and experiment to provide precise information on the inner world of objects. This method uses waveform inversion to utilize the entire information content of the wave field measured, providing improved results.
Researchers in Brazil have created 3-D virtual reality models of unborn babies using fetal MRI results. The technology allows doctors to visualize the fetus's internal structure, including the respiratory tract, which can aid in assessing abnormalities.
A large international study led by McMaster University researchers found that low-intensity ultrasound treatment after surgical repair of a bone fracture has no effect on recovery time or quality of life. The study involved 501 patients and showed that using either an active or placebo device did not improve outcomes.
A randomized controlled trial found no significant differences between ultrasound and sham treatment for tibial fracture healing or functional recovery. The study suggests abandoning low-intensity pulsed ultrasonography (LIPUS) as an ineffective treatment option for patients with tibial fractures.
Researchers have developed a new 3-D printed device that can harness high-pressure ultrasound to manipulate tiny objects like particles, drops or biological tissue. This control enables precise applications in surgery, material analysis and scientific research.
Researchers at Duke University have developed a simple, energy-efficient way to create three-dimensional acoustic holograms using Lego-like metamaterials. The technique manipulates sound waves into desired patterns, enabling applications such as improving sound quality in speakers and creating realistic ultrasound images.
Researchers discovered that mice create ultrasound by directing a small air jet against the inner wall of their larynx, producing an ultrasonic whistle. This innovative mechanism has implications for understanding social sounds in rodents and potentially even human speech disorders.
A total of 820 Hip surgeries were performed, with the overall VTE incidence being 12.2%. The incidence was lower for PAO compared to SHF and THA/Revision THA. Chemoprophylaxis therapy showed effectiveness in reducing VTE incidence.
A new study aims to develop objective indicators for diagnosing concussions using transcranial Doppler ultrasound to measure blood vessel function in the brain. The researchers hope to create a non-invasive, inexpensive method to accurately diagnose concussions and prevent second-impact syndrome.
A study by researchers at UW Medicine and Seattle Children's Research Institute found a link between exposure to diagnostic ultrasound in the first trimester of pregnancy and increased autism symptom severity. The study suggests that current FDA guidelines may need to be revised to account for this potential risk.
A team of scientists engineered protein-shelled nanostructures called gas vesicles to exhibit properties useful for ultrasound technologies. The modified gas vesicles were shown to produce distinct signals, target specific cell types, and help create color ultrasound images.
A study published in the New England Journal of Medicine found that MRI-guided focused ultrasound significantly improves tremors and quality of life for patients with essential tremor. The treatment was shown to achieve nearly 50% improvement in tremors after three months, while retaining a 40% improvement after a year.
A 25-year-old man recovering from a coma made remarkable progress after receiving an ultrasound treatment at UCLA. The technique, called low-intensity focused ultrasound pulsation, targets the thalamus to excite brain tissue and improve consciousness. Researchers plan to test the procedure on additional patients this fall.
A clinical trial led by Jeff Elias at the University of Virginia Health System found that focused ultrasound is safe and effective in reducing shaking caused by essential tremor. Participants showed significant improvement in disabilities and quality of life, with mean tremor scores improving by 47% at three months.
Researchers have developed a gene therapy approach using ultrasound energy and microbubbles to selectively open cells, allowing delivery of therapeutic agents. The study's findings will help refine this technique as a clinical tool and translate it into an effective gene or drug delivery tool for patients.
Researchers at UC Berkeley have developed dust-sized wireless sensors that can be implanted in the body to monitor internal nerves, muscles, or organs in real-time. The technology also enables stimulation of nerves and muscles to treat disorders such as epilepsy or stimulate the immune system.
Researchers used high-intensity focused ultrasound to ablate placental blood vessels in sheep, successfully occluding vessels with minimal complications. The technique shows promise for treating twin-twin transfusion syndrome and related pregnancy disorders.
The FDA has approved the ExAblate focused-ultrasound device to treat essential tremor in patients who do not respond to medication. The procedure shows promise as a less invasive alternative to deep-brain stimulation, with significant reductions in tremor symptoms after three months and one year.
New imaging methods, including computer-assisted analysis of X-ray images and ultrasound imaging, show promise in detecting early stages of arthrosis. The methods could lead to targeted treatment and improved prediction of disease progression.
Researchers in Norway used ultrasound to enhance absorption of chemotherapeutic compounds Gemcitabine into pancreatic cells, increasing treatment cycles and median survival time from 7 months to 18 months. The technique, called sonoporation, showed promising results without increased toxicity or side effects.
The OPINION study shows that OFDI-guided PCI achieves equivalent clinical and angiographic outcomes to IVUS-guided PCI at 12 months. The study results contribute to defining the clinical value of OCT guidance in PCI.
Armen Sarvazyan has been awarded the Helmholtz-Rayleigh Interdisciplinary Silver Medal by the Acoustical Society of America for his contributions to ultrasound imaging and its applications. He made significant findings on elasticity imaging technology and developed ultrasonic devices for biomolecular interactions.
A novel wavelet variational model is proposed to segment ultrasound videos efficiently, tackling low contrast, shadow effects, and complex noise statistics. The model achieves accurate ROI tracking with robustness and flexibility, making it suitable for real-time clinical applications.
This year's top winners include a study on benign disorders simulating thoracic malignancies and a thorough understanding of ankle nerves for nerve entrapment evaluation. B-flow imaging is also highlighted as a promising method to complement color Doppler ultrasound.
A study found that most patients with asymptomatic carotid disease underwent unnecessary carotid imaging tests ordered for uncertain or inappropriate indications. The majority of these patients received endarterectomy, while others had stenting performed.
Researchers used an advanced form of ultrasound to map blood flow activity in the brain, detecting changes that differentiate healthy and concussed athletes 83% of the time. The study suggests a new tool for quickly recognizing concussions on the sidelines.
Scientists develop SkinHaptics technology that sends ultrasound waves through the hand to create targeted tactile sensations on the palm. This innovation solves a major challenge for wearable devices by allowing users to feel what they are doing without interrupting the display.
Patients evaluated with point-of-care ultrasound (POCUS) had significantly less time on vasoactive agents, fewer ICU days, and decreased morbidity. POCUS also resulted in cost savings of about $20,000 per patient.
Adding tomosynthesis or ultrasound scans to standard mammograms detects more breast cancers in women with dense breasts. These imaging technologies picked up an extra 24 cancers, improving detection rates.
A study by UCLA researchers found associations between Zika infection and grave outcomes, including fetal death, placental insufficiency, and central nervous system damage. The study suggests that Zika can cause a range of abnormalities in pregnant women, even if the fetus is not directly affected.
TUM researchers are developing self-healing materials to repair cracks in concrete structures. They use bacteria, hydrogels, and epoxy resin to create a material that can close cracks and prevent water damage. The technology has shown promising results in laboratory tests and is being further developed for use in real-world applications.
A study developed a simple risk scoring system to predict the likelihood of cesarean delivery in nulliparous women. The five-factor risk score accurately predicts an individual woman's risk of cesarean delivery, including advancing maternal age, short height, and increased fetal abdominal circumference.
Researchers have created a new equation to estimate gestational age from fetal biometrics, showing a slight improvement in accuracy compared to the traditional Hadlock formula. The study validates the new formula using a large, multi-center dataset and demonstrates its potential to reduce unnecessary interventions like induction of labor.
A Columbia University team led by Elisa Konofagou will develop a new method for using focused ultrasound to stimulate peripheral nerves, potentially treating chronic pain and neuropathy. The four-year grant aims to advance the field of electrical prescriptions for targeted neural and bio-interface technologies.
Researchers at KU Leuven have fine-tuned a test for ultrasound diagnosis of ovarian tumours, improving accuracy and providing exact risk assessments. The new test has been analysed in 5,000 patient cases from 22 countries and is now ready for clinical use.
A new algorithm assesses adnexal masses with ultrasound, identifying 89-99% of patients with ovarian cancer. The approach allows for individualized patient management and potentially levels the playing field in expert interpretation.
A study published in JNCI Journal of the National Cancer Institute found that ultrasound sensitivity is comparable to mammography, but with a higher false-positive rate. The researchers suggest considering ultrasound as a supplemental test for women with dense breasts or those unable to tolerate MRI.
Researchers have developed a novel method to reposition an FDA-approved anti-cancer compound for targeting liver cancer tumors. The 'triple attack' technique uses nanobubbles filled with the drug to specifically target cancer cells, minimizing harm to healthy tissue.
A study combining parents' and professionals' views sets research priorities for stillbirth, identifying areas such as ultrasound evaluation and bereavement care as key focuses. The study received over 1600 responses, providing valuable insights into the complexities of stillbirth and its impact on families.
Researchers at Caltech developed a novel technique called TRUME that utilizes microbubbles to focus light inside biological tissue. The technique can be used as an effective 'guidestar' to target specific locations in tissues, enabling minimally invasive treatments such as tumor destruction and diagnostic imaging. This innovation has t...
Researchers recorded simultaneous audio and visual evidence of knuckle cracking using ultrasound imaging. The study found a correlation between the audible crack and a bright flash on ultrasound, suggesting that the sound results from gas bubble dynamics in the joint.