Articles tagged with Ultrasound
Researchers introduce Radon transform-based flow measurement (R-Flow), a contrast-free ultrasound method that visualizes blood flow dynamics at the microvascular scale. The technique captures complete 2D flow patterns and demonstrates high accuracy in detecting pathological changes in diseases like cirrhosis.
A new catalyst converts carbon dioxide into carbon monoxide under mild conditions, offering a potential path toward future low-energy carbon recycling technologies. The catalyst uses vibrational energy to drive chemical reactions, boasting high efficiency and selectivity for CO conversion.
Researchers at Stanford University have developed a non-invasive method to deliver light to specific locations in the body using nanomaterials and ultrasound waves. This technique provides a potential roadmap for easier, less invasive light-based treatments, with applications in biology, medicine, and gene editing.
The Salk Institute will lead an ARPA-H-funded project to develop ultrasound-sensitive protein tools, wearable ultrasound delivery technology, and a translational path to the clinic for major unmet medical needs. The team aims to create a noninvasive therapy for conditions such as peripheral neuropathy.
Researchers at MIT have developed an ultrasound wristband that precisely tracks hand movements, allowing users to control a robotic hand or manipulate virtual objects. The device produces high-quality images of the wrist's muscles and tendons, which are then translated into specific hand positions, enabling precise movement control.
Iron oxyhydroxide nanorods trigger cytotoxic hydroxyl and superoxide radicals in cancer cells through sono-tribocatalytic therapy. The treatment disrupts mitochondrial function and redox homeostasis, leading to PANoptosis in cancer cells.
Researchers at King's College London have been awarded £191,000 to enhance the prediction of aortic coarctation by adapting their established biomarker from MRI to ultrasound. The goal is to improve the accuracy of CoA diagnosis before birth using routine 2D scans.
Researchers at Duke University have developed a technique using microbubbles and ultrasound to deliver large cancer drugs into cells, causing them to self-destruct. The technology, called SonoPIN, shows promise in precisely delivering therapeutics to cancer cells with minimal off-target effects.
Researchers found that noninvasive measures of brain blood flow and oxygenation are associated with hallmark brain changes in older adults with and without cognitive impairment. Higher values on these indicators were linked to lower levels of amyloid plaques and larger hippocampal volume, indicating a lower risk of Alzheimer's disease.
Rice bioengineer Jerzy Szablowski has been awarded a Sloan Research Fellowship for his innovative work on noninvasive methods to communicate with the brain. He aims to develop versatile platform technologies to obtain new types of research data and treat multiple diseases.
Researchers found that ultrasounds performed too early during hospitalization were more likely to produce false positives, leading to additional invasive testing. Waiting until a fever resolved and closer to discharge did not prolong the hospital stay, but reduced unnecessary tests and added stress for families.
A novel AI model has been developed to accurately detect placenta accreta spectrum (PAS) in pregnancy, a life-threatening condition often undetected by current screening methods. The model was retrospectively reviewed on 2D obstetric ultrasound images from 113 patients at high risk for PAS and found to be accurate in detecting all cases.
Researchers created a miniaturized ultrasound system that can be used at home or in doctors' offices to scan people at high risk of breast cancer. The new system detects tumors earlier, increasing the chances of successful treatment.
Researchers have developed a natural solid gel pad made from tamarind seed gum, offering improved image quality and patient comfort compared to conventional liquid gel. The new gel pad's self-moisturizing property ensures stable acoustic coupling and enhanced ultrasound image quality.
Scientists have developed a new technique that combines rotational ultrasound tomography (RUST) with photoacoustic tomography (PAT) to create 3D color images of soft tissues and blood vessel function. This method has the potential to enhance breast tumor imaging, monitor nerve damage caused by diabetes, and brain imaging.
Steatotic liver disease can be precisely assessed using three-dimensional ultrafast vascular ultrasound. The technology visualizes subtle microvascular changes, enabling real-time monitoring of disease progression and therapeutic response.
Researchers developed an innovative noninvasive technique that combines ultrasound and photoacoustic imaging to capture images of both tissue and blood vessels. The technology has the potential to address current gaps in medical imaging, providing faster and more comprehensive imaging at meaningful depths.
Boston College researchers used piezoelectric nanoparticles to trigger macrophages, a key part of the body's immune response. The study suggests that this method could be used to activate immune cells specifically at an infection or tumor site, avoiding side effects associated with systemic administration of drugs.
Researchers propose a roadmap for using transcranial focused ultrasound to study consciousness, enabling precise manipulation of brain activity and determining cause-and-effect patterns. This technology may help address the hard problem of consciousness by probing neural circuits that generate sensations, thoughts, and feelings.
Researchers developed ultrasound-responsive in-situ antigen nanocatchers that efficiently capture tumor antigens, activating dendritic cell maturation and migration. This system achieved high primary tumor inhibition rates and complete distant tumor regression in a mouse model, providing a universal personalized immunotherapy platform.
The research team developed 'ULM-Lite,' a new analysis method that retains essential information from ultrasound signals, significantly reducing data size and increasing processing speeds. This technology enables clear visualization of the entire brain non-invasively without requiring surgery or fluorescent materials.
The researchers created a new ultrasound technology that can clearly visualize blood vessels deep inside the human body in three dimensions without using contrast agents or radiation. This innovation is expected to significantly improve medical imaging safety and accessibility.
A new study uses ultrasound to detect vascular complications from cosmetic fillers, such as absent blood flow to perforator vessels. Clinicians can now target exact areas for treatment, reducing the need for blind injections and minimizing complications like blindness and stroke.
The Mount Sinai Hospital is now using an FDA-approved AI tool that enhances fetal ultrasound screenings for congenital heart defects. The AI tool improved detection rates of suspicious findings to over 97%, while also reducing reading time and increasing confidence scores.
A new study found that hospitals with early ultrasound protocols detected 40% of major fetal anomalies before 16 weeks of pregnancy, compared to 28% in hospitals without such protocols. This suggests that systematic first trimester screening could improve the timeliness of anomaly detection across the population.
A new study aimed to standardize POCUS education, leading to more physician trainees learning the technique. The research found consensus on over 50 essential skills and teaching methods, promoting better patient care with faster diagnosis times.
Researchers at Columbia University Irving Medical Center have successfully used focused ultrasound to open the blood-brain barrier in three children with diffuse midline glioma, a rare and aggressive brain cancer. The technique allowed chemotherapy drugs to reach tumors, leading to some improvement in patient mobility.
Researchers at Virginia Tech's Fralin Biomedical Research Institute are studying how fluid flow contributes to the spread of glioblastoma tumors. They will use focused ultrasound and advanced MRI techniques to build a map of fluid flow in the whole brain and test the effectiveness of drug delivery.
A new report from Northwestern University offers six practical strategies to improve the doctor-patient bedside encounter in an era dominated by AI. By employing these strategies, clinicians can strengthen patient-physician relationships, combat inequities, and reduce burnout, ultimately leading to better patient outcomes.
A nonsurgical approach has been demonstrated to quiet a specific brain circuit in an animal model by delivering engineered gene therapy only to the targeted region. The method uses low-intensity focused ultrasound to open the blood-brain barrier, allowing precise control over brain activity without impacting off-target areas.
A study published in The New England Journal of Medicine found that nearly 4 million children and adolescents were at higher risk of developing blood cancers due to radiation exposure from medical imaging. The researchers estimated that up to 10% of pediatric blood and bone marrow cancers may be attributable to radiation exposure.
A novel ultrasound method, SAVES, shows promise for safer vein access in critically ill patients by visualizing both the artery and vein simultaneously. This technique demonstrated a 100% success rate without serious complications.
Researchers found that patients have more confidence in autonomous robotic ultrasound systems when an avatar guides them through the process. The virtual agent explains what it is doing and answers questions in any language.
A Rutgers and RWJBarnabas Health study found that portable ultrasounds can lead to better diagnoses, shorter hospital stays, and significant cost savings. The technology requires additional training and workflow integration to be widely adopted.
The research team has developed a velocity-constrained Kalman filtering algorithm that improves microbubble tracking accuracy, maps spatial distribution and movement direction of microvascular networks, and quantifies changes in blood flow speed. The technology also addresses challenges like motion compensation and low frame rates.
A new ultrasound-based tool has shown high accuracy in detecting suspected meningitis in newborns and infants, offering a non-invasive alternative to traditional lumbar puncture. The device can correctly classify 17 out of 18 meningitis cases and detect high white blood cell levels with approximately 94% sensitivity.
Studies have shown that emotional or psychological stress enhances pain responses, but the effects of social pain transmission remain elusive. Researchers found that ultrasonic vocalizations emitted by mice in response to pain stimuli can induce emotional transmission and hyperalgesia in other mice.
A new deep learning model enhances handheld 3D medical imaging by automatically tracking transducer motion without external sensors. The model produces more realistic 3D US images and can reconstruct blood vessel structures using ultrasound and photoacoustic data.
Scientists developed a method to use ultrasound to chemically activate drugs, selectively targeting tumors and stimulating immune cells. This approach achieved a 99% tumor suppression rate in colon cancer models without harming healthy tissues.
A new device created by USC biomedical engineers could help sufferers avoid the need for opioids. The UIWI stimulator is designed to provide real-time, personalized pain management through machine learning algorithms and wireless power supply.
A team of scientists from Colorado State University and the University of São Paulo have developed a seismological solution to improve the resolution of ultrasound images for lung monitoring. This breakthrough could lead to improved critical care for patients, including continuous lung monitoring at the bedside. The technique uses seis...
Researchers have developed a technique to create spin in liquid droplets using ultrasound waves, concentrating solid particles suspended in the liquid. This allows for the creation of novel technologies for biomedical applications and research on rotating systems.
Researchers at Mass General Brigham have pinpointed a 'sweet spot' for focused ultrasound treatment to provide significant relief from essential tremor. The study identified a specific subregion of the brain's thalamus that can result in optimal and long-lasting tremor improvements while reducing side effects. With this breakthrough, p...
Researchers have developed a technique for in vivo 3D printing of polymers using sound localization, which can be used for drug delivery, tissue repair, and internal wound sealing. The new method, called deep tissue in vivo sound printing (DISP), has been successfully tested in mice and shows promising results.
University of Virginia researcher Natasha D. Sheybani has received a $5.5 million grant to advance her research on focused ultrasound technology for breast cancer immunotherapy. Her work aims to enhance the safety, effectiveness, and precision of immunotherapy drugs.
A pioneering study demonstrated that an AI-powered lung ultrasound surpasses human experts by 9% in diagnosing pulmonary tuberculosis. The technology leverages deep learning algorithms to interpret lung ultrasound images in real-time, making it more accessible for TB triage, especially for minimally trained healthcare workers.
Natasha Diba Sheybani, a UVA researcher, has received a $5.5 million grant to develop safer and more precise breast cancer treatments using focused ultrasound technology. Her work aims to overcome key bottlenecks in current treatments and improve patient outcomes.
Researchers used ULM to monitor pancreatic microvasculature in a rat model, tracking microbubble trajectories and quantifying vascular parameters. Anti-cytokine immunotherapy showed significant improvements in vascular structure and function, suggesting its potential to restore β-cell function.
Researchers at Pohang University of Science & Technology and Jeonbuk National University successfully trapped mechanical waves within a single resonator, overcoming a century-old physics barrier. The discovery opens new possibilities for energy harvesting, ultra-sensitive sensors, and advanced communications.
A team of scientists has developed a new ultrasound technique called nonlinear sound sheet microscopy that images specifically labelled cells in 3D with ultrasound. This method allows for non-invasive imaging of whole organs and provides information about how cells behave in their natural environment.
The device uses AI technology to detect potential heart problems and provides real-time health insights. It has multiple points touching the skin near the heart, allowing for more accurate tracking even during movement.
Researchers at USC Viterbi have developed a new type of immune cell that can sense and destroy cancer cells for extended periods using focused ultrasound. This technology could overcome obstacles in treating tumors with immunotherapy while keeping healthy tissue safe.
The study reveals that muscle fibers shorten as forces increase during fast hopping, allowing for faster motion. This counterintuitive behavior enhances leg stiffness, which could impact sports training, rehabilitation, and robotics.
Researchers developed a tiny magnetic robot that can take 3D scans from deep within the body, enabling 'virtual biopsies' for non-invasive cancer diagnosis and treatment. The device uses high-frequency imaging to create detailed 3D reconstructions, allowing clinicians to diagnose and treat colorectal cancer in a single procedure.
A new study has shown that high-resolution ultrasound can diagnose prostate cancer as effectively as MRI, with improved resolution and lower costs. The technology, called micro-ultrasound, is expected to speed up diagnosis, reduce hospital visits, and make imaging more accessible, particularly in less developed healthcare systems.
A new study has developed CoLDiT, a conditional latent diffusion model capable of generating high-resolution breast ultrasound images. The model achieved comparable performance to real images in BI-RADS classification and realism evaluation, while safeguarding patient privacy through nearest neighbor analysis.
A new study by Rice University and Vanderbilt University researchers found that combining focused ultrasound with the existing protein therapy TRAIL can significantly reduce tumor size and burden in prostate cancer models. The therapy works by amplifying the anticancer effects of TRAIL via Piezo1 activation, which triggers cell death.
Flexible micromachined ultrasound transducers (MUTs) enable continuous monitoring and targeted stimulation due to their conforming ability, reducing diagnostic errors and operator variability. The study explores fabrication methods, performance benchmarks, and potential applications of these devices.
Increasing the spacing between integrin-ECM binding domains on the extracellular matrix can boost the efficiency of ultrasound treatment applied to kill cancer cells. A new study found that this increased spacing triggers myosin forces, pumps more calcium inside, and promotes cell death.
A new study found that babies show positive responses to the smell of foods they were exposed to in the womb after birth. Newborns whose mothers had taken carrot powder capsules reacted favourably to the smell of carrot, while those whose mothers had taken kale powder capsules reacted more positively to the scent of kale.