Articles tagged with Ultrasound
Researchers have developed a noncontact laser ultrasound technique that generates and detects sound waves on the skin surface using eye- and skin-safe lasers. This method produces images with centimeter depths, comparable to clinical ultrasound, and shows sensitivity to tissue features currently detected by conventional ultrasound.
MIT engineers develop new laser ultrasound technique that remotely images inside a person, eliminating the need for direct contact. The method uses sound waves generated by a laser to create images comparable to conventional ultrasound, with potential applications in imaging infants, burn victims, and accident survivors.
Scientists successfully deliver powerful glioblastoma drug paclitaxel into brain tumors in mice using an implantable ultrasound. The new formulation uses albumin instead of toxic cremophor, reducing brain toxicity. This technology has shown to increase drug concentrations by five-fold and prolong survival of brain tumor-bearing mice.
Researchers developed a photoacoustic (PA) thermometry system for HIFU treatment guidance, enabling real-time monitoring of temperature increase at tumors during treatment. The system allows for simultaneous ultrasound imaging, PA imaging, and PA thermometry, enhancing the accuracy and safety of HIFU treatments.
Researchers used focused ultrasound to target and open areas of the blood-brain barrier in three women with early-stage Alzheimer's disease. The technique successfully opened and closed the barrier within 24 hours, with no adverse effects.
Researchers developed two spectral-based techniques to evaluate cervical tissue changes before labor, improving diagnostic capabilities. The study identified one technique as more effective in detecting these changes.
A new study presents a novel MRI-guided procedure that effectively treats prostate cancer with minimal side effects. The technique, called TULSA, uses therapeutic ultrasound to destroy diseased prostate tissue while sparing healthy nerve tissue.
Researchers aim to overcome obstacles in brain tumor treatment by using focused ultrasound and temperature-sensitive nanoparticles. These strategies can provide unique opportunities to improve the delivery of nanoparticles into brain tumors.
A new study presents a minimally invasive procedure using focused ultrasound to reduce tremors and improve quality of life in patients with Parkinson's disease. The treatment, known as MRgFUS thalamotomy, shows substantial improvement in 95% of patients, with significant reductions in tremor severity and quality of life.
Researchers at St. Pölten UAS have developed an open-source protocol for secure data transmission using ultrasound, enabling users to control app communication and protect user privacy. The technology, called SoniTalk, has potential applications in industries such as IoT, Industry 4.0, and digitalisation.
A study found that ultrasound treatment can significantly improve hand tremors, disability, and quality of life in people with essential tremor. After three years, participants showed a 50% improvement in hand tremors, 56% reduction in disability, and 42% increase in quality of life.
A systematic review and meta-analysis found that bedside optic nerve ultrasound is an accurate diagnostic tool for detecting increased intracranial pressure, particularly in children and adults. The test involves a non-invasive ultrasound of the eye to reflect pressure inside the brain.
Biomedical engineers have combined ultrafast ultrasound imaging with ultrasonic tweezers to precisely track and target drug carriers within a phantom blood vessel. This new method could enable acoustic control and real-time tracking of drug release within the body, potentially improving targeted therapeutics.
The NIH RO1 grant aims to improve ultrasound tomography for breast cancer detection by developing physics-based computational models and advanced image reconstruction methods. The goal is to create high-resolution images that can detect subtle cancers, especially in younger women with denser breast tissue.
Researchers found that using ultrasound to guide treatment strategy does not improve treatment decisions in patients with early rheumatoid arthritis. The study used MRI imaging to assess inflammatory activity and structural damage progression, but found no significant difference between the two groups.
A study published in Academic Emergency Medicine found that Focused Cardiac Ultrasound (FOCUS) can significantly lower the likelihood of pulmonary embolism (PE) diagnosis in ED patients with suspected PE and abnormal vital signs. The results suggest that FOCUS can be an important tool in the initial evaluation of these patients.
Researchers at UC3M have developed a new type of acoustic insulation that can focus sound energy in corners, potentially leading to breakthroughs in filtering and conducting applications. The innovation uses topological materials to concentrate sound waves, enabling efficient energy harvesting and conversion.
Researchers developed a new type of micromotor that can move around single cells and microscopic particles in three dimensions without damaging them. The technology has potential applications in targeted drug delivery, nanomedicine, tissue engineering, regenerative medicine and other biomedical fields.
A study of over 50,000 pregnancies reveals that late third trimester ultrasounds can identify previously undetected fetal abnormalities in 0.5% of cases. This benefit highlights the importance of these scans for detecting abnormalities that were missed in earlier first and/or second trimester exams.
Researchers have identified the mechanism underlying ultrasonic brain stimulation's neuromodulation effect, revealing that TRPA1 channels in astrocytes play a crucial role. This non-invasive approach has shown promise for treating movement disorders and may also be useful for conditions like dementia, concussions, and depression.
University of Minnesota Medical School researchers have made a breakthrough in combating glioblastoma, the most common form of adult brain cancer. By combining ultrasound with engineered glass particles, they were able to create a 'Goldilocks' balance that awakens the body's immune response and boosts the effectiveness of immunotherapy.
Researchers developed a machine learning method to enhance optoacoustic imaging quality without sacrificing it. The approach uses sparse data, allowing for reduced sensor numbers and improved diagnosis accuracy, facilitating clinical decision-making.
Researchers develop non-invasive method to evaluate bone structure using ultrasound, potentially enabling early osteoporosis detection and treatment assessment. The technique also shows promise in distinguishing between tumors and healthy tissue in laboratory rats.
A new two-minute focused cardiac ultrasound protocol can help veterinarians detect heart disease in cats earlier, potentially saving lives. The test, developed by researchers at Tufts University, has been shown to be successful in detecting moderate and severe heart disease with high accuracy.
A team of researchers has developed a new technique that combines laser technology and candle soot to generate effective ultrasonic waves for nondestructive testing. The patch made from nanoparticles from candle soot and polydimethylsiloxane amplifies the signal, enabling temperature-independent measurement and wide range monitoring area.
Researchers explore ultrasound therapy's effectiveness in treating various cardiovascular conditions, including hypertension and arrhythmia. The study highlights the benefits of acoustic intervention, including deep tissue penetration and minimal invasiveness.
This review analyzes the diagnostic value of ultrasound in evaluating 7 major arthritic conditions. Ultrasound is found to be effective in delineating characteristic features for each condition, making it a convenient and accurate imaging modality.
Developed by Stevens Institute of Technology researchers, wearable motion sensors can record vibrations sent through a mother's abdomen when her baby's heart beats or squirms. These non-invasive devices could reduce stillbirths worldwide and provide vital insights into fetal health.
A miniature robot, called Sonopill, has been developed to guide a tiny robotic capsule inside the colon for micro-ultrasound imaging. This technology has the potential to replace invasive endoscopic examinations and detect cancer at an early stage.
Researchers developed a novel technique using transcranial ultrasound and microbubbles to open the blood-brain barrier, enabling drugs to penetrate the brain and restore dopaminergic pathways. The method has been approved by FDA for clinical trials in Alzheimer's patients and shows promise for treating Parkinson's disease at early stages.
Ultrasound imaging of carotid arteries reveals clog extent and cardiovascular risk; combining data with traditional risk factors improves prediction accuracy. Early intervention through therapies like lipid lowering can lower cardiovascular event risk in patients with psoriatic disease.
Researchers from George Washington University have successfully used ultrasound therapy to increase insulin levels in mice, providing a potential alternative to current treatments. The study found significant increases in blood insulin levels after exposure to ultrasonic pulses, but did not see the corresponding drop in glucose levels.
At SAEM 2019, experts like Rebecca Cunningham emphasized the need for gun safety beyond 'gun control', focusing on injury prevention. Meanwhile, a study found opportunities to reduce over-testing in emergency departments through data analysis and targeted quality improvement initiatives.
Researchers evaluated clinical and radiological features of fibro-adipose vascular anomaly (FAVA), a soft-tissue vascular lesion. FAVA is characterized by unique clinico-radiological features, including a painful intramuscular lesion in extremities, progressive heterogeneous enhancement on MRI, and associated phlebectasia.
Researchers are testing a non-invasive procedure that uses low-intensity focused ultrasound to open the blood-brain barrier, allowing treatment to reach the brain and potentially treating neurodegenerative diseases such as Alzheimer's. The clinical trial aims to understand the effectiveness of this method in improving cognitive decline.
A new imaging technique using subharmonic contrast-enhanced ultrasound may help detect prostate cancer in patients where MRI is negative. The study, to be presented at the ARRS Annual Meeting, found that the technique detected PCa in 9 of 31 patients with a prior negative MRI or biopsy.
High-intensity focused ultrasound waves can penetrate biological tissue and trigger chemical reactions on demand. The technology, developed by an interdisciplinary team, addresses challenges of noninvasive access to deep tissue for therapeutic purposes.
Researchers at Caltech Optical Imaging Laboratory created a technique to break the acoustic diffraction limit in PACT by localizing single dyed droplets flowing in blood vessels, achieving six-fold finer resolution. The droplets provide excellent tracers for super-resolution imaging and enable tracking of blood flow speed.
A new study found that routine ultrasounds can eliminate undiagnosed breech presentations, lower emergency caesarean sections, and improve maternal health. The research suggests that screening for breech presentation near term could be introduced in a cost-effective manner.
Regular ultrasounds at 36 weeks' gestation can identify undiagnosed breech presentations, reducing the risk of complications for both mothers and babies. By performing these scans, hospitals could potentially save thousands of pounds annually while improving patient outcomes.
Research shows low-intensity ultrasound can modulate normal brain function, affecting counterfactual thinking and alternative choice. This technique may revolutionize non-invasive treatment for mental health conditions like depression and Parkinson's.
North Carolina State University researchers have created a technique called ultrasound-assisted biofabrication (UAB) to align living cells during the bioprinting process. This allows for the creation of tissues with characteristics similar to natural tissues, such as a knee meniscus with aligned cell structures.
The new technology provides a 360-degree, three-dimensional view of surgical tools and surrounding tissue for more precise needle placement. This allows for improved dose pattern distribution to the tumour and surrounding tissue, reducing complication rates.
A new 'pulsing' ultrasound technique has been developed to improve drug delivery to the brains of mice, opening up new possibilities for treating neurological diseases such as Alzheimer's. By using shorter-wave pulses, researchers were able to deliver drugs effectively without causing tissue damage or side effects.
Researchers have discovered that noninvasive daily ultrasound stimulation of the spleen in mice with inflammatory arthritis results in significantly less joint swelling compared to untreated mice. The study is a first step towards developing new treatment options for rheumatoid arthritis, an autoimmune disease affecting millions of peo...
Haiying Huang, a UTA professor, has received $900k grants to monitor ship structural health and detect early material degradation. Her research focuses on using optical fibers as waveguides for lightweight, effective, and easy-to-maintain sensor networks.
Researchers at GE Research and the Feinstein Institute for Medical Research have developed a non-invasive ultrasound technique to stimulate nerve features directly within target organs, reducing inflammatory markers and altering metabolism. The findings hold promise for treating various illnesses, including arthritis and IBD.
Researchers at the University of Bath use sound waves to levitate particles, discovering multiple shapes they can assemble into when brought together. The team found that changing sound-wave frequency can manipulate clusters and influence emergent shape.
Researchers at Washington University have developed a new method for precise drug delivery using cavitation dose painting, which combines focused ultrasound with ultrasound therapy to target specific locations in the body. This technique uses passive cavitation imaging to predict where a drug goes and how much is delivered.
Researchers found ultrasound of the calcaneus to be equal to DXA data in assessing bone health, paving the way for widespread use of low-cost screenings for populations at risk. The findings support preventive lifestyle changes as the best approach to improving bone health and reducing osteoporosis risk.
A new imaging technique called volumetric multi-spectral optoacoustic tomography (vMSOT) offers advantages over conventional methods for assessing cardiovascular disease risk. vMSOT provides detailed information about the makeup of plaque in carotid arteries, associated with vulnerability to rupture and stroke.
Researchers at Northwestern University developed a new tool to image blood flow through tiny capillaries, providing insights into the circulatory system. The 3D-imaging technique can detect subtle changes in capillary organization for early diagnosis of diseases such as cancer and cardiovascular disease.
New research found that respiratory tract infections in children can persist for up to three weeks, with symptoms lasting longer in younger children and those with lower respiratory tract symptoms. The study also suggests that repeated flu vaccine immunization may enhance long-term protection against respiratory illness.
Researchers at Swansea University have developed a new ultra-precise ultrasound sensor on a silicon chip, capable of detecting vibrations in living cells. This breakthrough technology may transform applications in medical devices, biomedical imaging, and spatial sensing for unmanned vehicles.
Researchers at the University of Queensland have developed an ultra-sensitive ultrasound sensor on a silicon chip, revolutionizing medical devices and unmanned vehicle navigation. The technology can detect miniscule forces from surrounding air molecules, opening doors to new biomedical imaging and biological system understanding.
The FDA has approved focused ultrasound treatment for reducing medication-resistant Parkinson's disease tremors, allowing doctors to perform brain surgery without cutting into the skull. Researchers are now exploring its potential for treating other conditions, including breast cancer and epilepsy.
Scientists develop acoustic tweezers capable of independently levitating a range of small-sized objects using sound waves. This technology offers several advantages over optical tweezers, including the ability to penetrate biological tissue safely and non-invasively, making it ideal for cell manipulation applications.
Researchers at KU Leuven devised an elegant way to use sound waves to keep chemicals flowing in miniature reactors. The technology improved efficiency by forcing particles into the center of channels, mixing them, and stopping clogging.
Researchers developed high-resolution functional ultrasound imaging to study brain activity in awake and behaving mice. They found that out of 181 consistently identified brain regions, 87 were modulated during the optokinetic reflex, a stabilizing eye movement response.
A new randomised trial found that sharing pictorial representations of personalised scans showing the extent of atherosclerosis reduced cardiovascular disease risk one year later. The study showed improvements in total and LDL cholesterol levels, with the strongest effect seen for those at highest risk.