Articles tagged with Ultrasound
UMC Utrecht researchers are conducting two new projects to treat cancer using image-guided interventions. One project uses MRI-guided radiotherapy for locally advanced pancreatic cancer, while the other employs ultrasound techniques for head and neck cancers.
A multidisciplinary team led by Hong Chen successfully induced a torpor-like state in mice using ultrasound, which also worked on rats. The researchers found that stimulating the hypothalamus preoptic area with ultrasound activated neurons and induced changes in body temperature and metabolism, allowing for the preservation of energy.
A multicenter study found that deep learning-based computer-aided diagnosis significantly improved radiologists' diagnostic performance for breast lesion classification on ultrasound. The use of CAD resulted in a 6.0% upgrade of BI-RADS category 3 assessments to category 4A, with 16.7% being malignant.
Researchers developed a new method combining palmitoleic acid, gentamicin, and non-invasive ultrasound to improve drug delivery in chronic wounds infected with S. aureus. The strategy reduced bacterial burden by 94% and successfully sterilized wounds in diabetic mice.
Researchers at UC San Diego have created a wearable ultrasound system that can monitor deep tissue vital signs continuously, even in subjects on the go. The device uses machine learning to track movement and adjust its focus, providing real-time cardiovascular data.
A multi-institutional team of experts is studying how to use focused ultrasound to create a temporary gateway through the blood-brain barrier to deliver cancer medicine. Researchers aim to develop a personalized medicine approach in which they can test drugs on patient tumors and predict treatment effectiveness.
Scientists have created a new way to image and track macrophages in the body using ultrasound-enhanced immune cells. This method has potential for early cancer detection and monitoring of therapeutic efficacy. The technique involves attaching microbubbles to macrophages, allowing for high-resolution tracking images.
Researchers successfully performed the first in-utero surgery to repair a potentially deadly developmental condition called vein of Galen malformation. The procedure involved treating an aggressive vascular malformation before birth, resulting in improved cardiac output and no signs of negative effects on the brain after birth.
A team of engineers at UC San Diego has developed a stretchable ultrasonic array capable of serial, non-invasive imaging of tissues up to 4cm below the skin surface. This technology offers several key applications in healthcare monitoring, including cancer detection and sports injury assessment.
Scientists successfully opened the blood-brain barrier using a novel ultrasound device, delivering chemotherapy to treat glioblastoma patients. The treatment increased drug concentrations by 4-6 times and was safe and well-tolerated.
A study published in Radiology found that AI can analyze breast mass images from low-cost portable ultrasound machines and accurately identify cancer. The technology showed great promise for improving breast health care in low-resource settings, reducing delays in diagnosis and potentially saving lives.
A mobile application utilizing Python and a single-element ultrasound transducer has been developed for photoacoustic tomography (PAT) image reconstruction. The application successfully reconstructs high-quality images with signal-to-noise ratio values above 30 decibels, making it suitable for point-of-care diagnosis in low-resource se...
Tiny California blackworms tangle themselves to perform biological functions, but can untangle in mere milliseconds. Researchers have discovered the mathematics behind this process, revealing how helical gaits and topological principles enable the worms' superpower.
Researchers developed a dual-modality imaging technique combining photoacoustic and super-resolution ultrasound imaging to detect physiological and biochemical abnormalities. The new method provides comprehensive diagnostic information at a lower cost than traditional techniques.
Researchers develop a new technique to measure blood attenuation using a fluorophore-coated guidewire, improving the accuracy of near-infrared fluorescence in cardiovascular imaging. The method provides accurate information on vessel walls and outperforms existing correction methods.
Regular third trimester ultrasound scans can help identify undiagnosed breech pregnancies, allowing for better care before and during labor. This could lead to improved perinatal outcomes and reduced rates of undetected breech pregnancy by 71%.
Researchers developed a complex that accumulates in tumour tissue and is activated by ultrasound waves, triggering the release of a toxic compound and eradicating tumours. This method could make cancer treatment less invasive and more effective for large and deep-seated tumours.
A study published in Radiology found that ultrasound is an effective standalone diagnostic method for patients with focal breast complaints. The analysis showed that ultrasound alone led to accurate diagnosis in 90% of patients, with over 80% of complaints being benign findings.
Researchers have found that embryos in pregnancies ending in miscarriage take four days longer to develop in the womb than those in live births. This delay is associated with a higher likelihood of miscarriage and may be used to estimate pregnancy outcomes.
A new focused ultrasound treatment has been shown to improve dyskinesia and motor impairment in patients with Parkinson's disease. The study, led by UNC School of Medicine researchers, found that 69% of patients who underwent the treatment experienced a response, compared to 32% of those in the control group.
Researchers at the University of Sheffield have developed a new ultrasound method to measure tissue tension, which can indicate abnormal tissue, scarring, and cancer. This breakthrough technique uses sound waves to detect forces within soft tissue, enabling earlier disease diagnosis and potentially improving healthcare outcomes.
Axillary lymphadenopathy after a COVID-19 vaccine booster dose resolves at a mean of 102 days. Findings support follow-up intervals of at least 12 weeks to avoid delaying screening mammography for suspected vaccine-related lymphadenopathy.
A team of POSTECH researchers has developed a deep learning-based multimodal fusion network for segmentation and classification of breast cancers using B-mode and strain elastography ultrasound images. The method achieved high accuracy in distinguishing benign from malignant lesions, outperforming conventional methods.
A new study reveals that holographic haptic displays create diffuse and faint tactile sensations due to widespread vibration patterns in the skin. The researchers discovered a phenomenon known as constructive interference that amplifies shock waves, leading to reduced spatial precision and clarity.
A new AR system using HoloLens enables doctors to perform transperineal prostate interventions with high accuracy and flexibility. The system provides a 3D immersive experience, allowing doctors to guide needles to their target with ease.
A new study found that an ultrasound device consistently reduced daytime ambulatory blood pressure by an average of 8.5 points among middle-aged patients with hypertension. The device targets overactive nerves in the kidneys, disrupting signals that lead to high blood pressure.
Scientists at Caltech have developed a method to move and arrange cells using ultrasound waves, which could enable tissue engineering and cell-based therapy. By harnessing the properties of gas vesicles derived from bacteria, researchers can apply force to cells in a selective manner.
A POSTECH research team has developed a deep-learning approach to enhance resolution and speed in photoacoustic computed tomography (PACT) imaging. The technique enables high-resolution, real-time whole-body imaging of animals and monitors tissue movement in the heart, kidney, and brain.
A new study led by University of Maryland School of Medicine researchers found that focused ultrasound treatment significantly reduced tremors and improved mobility in Parkinson's patients. Nearly 70% of treated patients showed a successful response after three months, with two-thirds continuing to respond a year later.
Scientists from NC State University have discovered a way to manipulate the flow of heat through ferroelectric materials by applying different electric fields. The study, published in Advanced Materials, found that varying electric field strengths, types (AC/DC), time, and frequency can alter the thermal properties of these materials.
A recent clinical study reveals a correlation between low intracranial pressure and impaired patient visibility, especially in the nasal zone. Higher translaminar pressure difference is estimated as a risk factor for normal tension glaucoma development.
Researchers at Max Planck Institute and Heidelberg University have developed a technology to assemble matter in 3D using sound waves. They successfully printed microparticles, gel beads, and biological cells into three-dimensional shapes, paving the way for novel 3D cell culture techniques.
Ultrafast MRI provides beneficial information for predicting DCIS upgrade to invasive cancer, including time to enhancement and lesion size. A study found that UF-MRI can accurately predict lesions diagnosed as DCIS at percutaneous biopsy that will be upgraded to invasive cancer at surgery.
A meta-analysis of 22 studies found that breast MRI was superior to other supplemental screening methods in detecting breast cancer in women with dense breasts. This is because breast MRI can detect even the smallest of cancers, making it a valuable tool for identifying high-risk patients.
Researchers at Washington University in St. Louis have developed a non-invasive method called sonobiopsy that uses focused ultrasound to release neurodegenerative biomarkers into the blood, facilitating diagnosis of conditions like Alzheimer’s disease. The technique has shown promising results in releasing tau proteins and another biom...
A study led by CSIC demonstrates the efficiency of low-intensity ultrasound therapy in inhibiting cancer cell migration in pancreas cancer models. The researchers successfully controlled tumor cell biodynamics without causing damage.
Engineers and physicians developed a portable, postage-stamp-sized wearable ultrasound device for cardiac imaging. The device measures blood pumping activity in real-time, even during exercise, providing continuous insights into heart health.
Researchers developed a new tool using vortex ultrasound to break down blood clots in the brain, which eliminated clots more quickly than existing techniques. The approach works by inducing shear stress on the blood clot, reducing risk of hemorrhage in the brain.
A new biopsy procedure is developed with a multispectral confocal endomicroscope to aid in lung tissue imaging. The system allows for simultaneous imaging of multiple fluorescent dyes, enabling unique identification and spectral unmixing.
Researchers at ETH Zurich have created a device that uses ultrasound to automate laboratory analysis tasks. The device combines microfluidics and robotics, allowing for the mixing, pumping, and trapping of tiny amounts of liquid. This innovation enables the automation of previously custom-designed systems.
Researchers developed a blood test using circulating microparticle proteins to predict placenta accreta spectrum (PAS) cases as early as the second trimester. The study found five unique proteins that can distinguish PAS patients from control patients, enabling safe predication before delivery.
Jon A. Jacobson, MD, FACR, has been recognized as the 2023 ARRS Distinguished Educator for his exceptional contributions to radiological education and innovative educational activities. He is a renowned expert in musculoskeletal ultrasound and MRI, with over 250 peer-reviewed publications.
The American Roentgen Ray Society has awarded the 2023 ARRS Gold Medal to Dr. Bernard F. King, Jr., MD, FACR, FSAR, in recognition of his distinguished service to radiology. Dr. King has made significant contributions to the field, including the development of contrast media recognition and treatment protocols.
Researchers at Florida Atlantic University's Schmidt College of Medicine have developed a handheld ultrasound device to treat neuropathic pain. The device uses low-intensity focused ultrasound to target specific areas of the nervous system, offering a non-invasive and non-opioid-based treatment option.
Researchers from Nagoya University found that 5G network telemedicine is effective in providing telerehabilitation and teletreatment in a remote community. The study showed that 5G transmitted high-definition images with low latency, reducing the need for physical therapist visits and improving patient outcomes.
A minimally invasive treatment for carpal tunnel syndrome provides complete and long-term relief to patients. Ultrasound-guided hydrodissection effectively treats nerve entrapments without surgery or corticosteroids.
Researchers at USC's Keck School of Medicine are collaborating with Polaris Dawn to develop a novel method for collecting X-rays in outer space. They aim to harness ambient radiation to create images using analog X-ray film, which could improve medical care on long-duration spaceflights.
Researchers found that individuals with persistent asthma have higher levels of inflammation and artery plaque, which may increase heart attack or stroke risk. The study also highlights the importance of addressing risk factors for cardiovascular disease in people with persistent asthma.
Researchers at Clinica Universidad de Navarra found that ultrasound-guided surgery (IOUS) is more effective and quicker than traditional wire-localisation methods for treating ductal carcinoma in situ (DCIS). This technique reduces the risk of positive margins, a common cause of second operations.
Researchers evaluated modified CEUS using perfluorobutane for diagnosing hepatocellular carcinoma in high-risk patients. The study found no significant difference in sensitivity, specificity, or accuracy between modified CEUS and CT/MRI LI-RADS v2018.
A five-year review of focused ultrasound treatment for essential tremor found that patients experienced significant reductions in tremor symptoms, with benefits lasting long-term and no reported progressive or delayed complications. The study represents the largest long-term assessment yet conducted on the procedure.
The American Roentgen Ray Society (ARRS) named Dr. Sarah Kamel of Thomas Jefferson University Hospital and Dr. Ankur Goyal of the All India Institute of Medical Sciences as Melvin Figley and Lee Rogers Fellows in Radiology Journalism, respectively. They will receive expert instruction in scientific writing and communication through the...
A team of scientists has developed optically-generated focused ultrasound (OFUS) for non-invasive brain stimulation with ultrahigh precision, surpassing the reach of traditional transcranial focused ultrasound (tFUS). OFUS uses a soft optoacoustic pad to generate an ultrasound pulse with a spatial resolution of 0.1 mm.
A novel screening tool has been developed to diagnose a serious heart condition in young athletes. The tool uses non-invasive ultrasound techniques to accurately identify cardiomyopathy, reducing false positives and providing better protection for the athletes of tomorrow.
A new system has been developed to deliver ultrasound stimulation to the brain in awake, naturally behaving mice, allowing researchers to evaluate its effects on sleep and working memory. This advance will help scientists test different ultrasound treatment protocols in mouse models of diverse neurological conditions.
A deep learning algorithm trained on adult populations shows improved sensitivity for diagnosing thyroid nodules in children, with higher accuracy than traditional ACR TI-RADS. The study suggests the potential benefits of this new approach for evaluating thyroid nodules in younger patients.
Interdisciplinary researchers at the Beckman Institute have received a four-year, $2M award from the National Institutes of Health to develop a device that can instantly enable real-time 3D ultrasound imaging. The device, named FASTER, is designed to improve high-quality medical imaging accessibility in diverse communities.
Researchers have developed a novel, non-invasive way to measure blood flow to the brains of newborn children at the bedside. This method uses real-time ultrasound color flow technique and 3D sampling to capture flow in a completely painless and safe manner.
Researchers at Oak Ridge National Laboratory have developed low-temperature methods to purify molten chloride salts for energy storage, potentially making them suitable for storing solar thermal energy. They also created an online tool called VERIFI to track industrial carbon emissions and improve energy efficiency.
A new study demonstrates that standardizing ultrasound-guided PIV insertions using an innovative sterile barrier dressing, UltraDrape, improves outcomes and reduces costs. The results show a 73% reduction in supply costs and a 50% decrease in staff time for insertions.