Articles tagged with Ultrasound
Researchers developed a noninvasive ultrasound neuromodulation technique that inhibits epileptiform activities with an efficiency exceeding 65% in biopsy specimens from epileptic patients. The study demonstrates the potential clinical use of low-intensity pulsed ultrasound stimulation for epilepsy treatment.
University of Virginia researchers are pioneering a new approach using focused ultrasound to deliver treatments directly into the brain. The technology, which can selectively open the blood-brain barrier, has shown promising results in treating conditions like Alzheimer's, epilepsy, and brain tumors.
Researchers at Penn State have developed a novel method to deliver therapeutic proteins inside the body using an acoustically sensitive carrier and ultrasound imaging. The method uses a fluorous mask to interact with the particle's fluorous liquid medium, allowing the protein to be released in a precise manner.
Researchers have developed a method to use ultrasound to insert a sugar molecule called trehalose into red blood cells, allowing them to last for years. This technique could increase the shelf life of blood donations from weeks to years.
Researchers found that 40% of asymptomatic people between 40-50 years old accumulated fatty plaques in their arteries at a rapid rate. The study shows a direct link between classical cardiovascular risk factors and disease progression.
Researchers at Columbia University have used Electromechanical Wave Imaging (EWI) to localize cardiac arrhythmias more accurately than 12-lead ECGs alone, providing 3D visualization for easier anatomical location. The technique achieved a correct prediction rate of 96% compared to 71% for ECG.
Researchers in Australia have developed a new ultrasound biosensor that can be used to track disease states in real-time, using cheap and portable technology. The sensor uses nanoparticles that alter their stiffness in response to pH changes, allowing for accurate monitoring of biomarkers such as tumor shrinkage and organ response.
Researchers at UniTrento developed a diagnostic protocol for Covid-19, which has been scientifically accepted. The technique uses lung ultrasound imaging to 'take a picture' of the lungs and reveal alterations.
Scientists have developed a method to recharge bioelectronic implants wirelessly using soft and flexible materials that absorb sound waves. The new technology could minimize surgical treatments and improve patient comfort. Researchers have successfully demonstrated the concept by charging devices with ultrasonic energy.
Using ultrasound localization microscopy, researchers can visualize blood vessels and measure oxygen levels in tumors with high resolution. This technique has the potential to improve cancer detection and therapy evaluation by providing accurate information on tumor hypoxia.
The researchers aim to develop a compact sonomyographic prosthetic system that can provide robust control signals proportional to muscle activity. They plan to evaluate the system's performance compared to existing methods, including clinical outcome measures and user satisfaction questionnaires.
A new study found that thousands of UK children undergo unnecessary appendix surgery each year, with a high rate of misdiagnosis. Researchers propose routine risk scoring and improved ultrasound services to reduce unnecessary surgery and save the NHS £4.4 million per year.
A new MRI tool has been developed and shown to be 90% accurate in distinguishing between malignant and benign ovarian cysts. This could lead to earlier treatment and improved outcomes for women with ovarian cancer, reducing the need for invasive surgery.
Researchers at Tomsk Polytechnic University have successfully created a new type of curved acoustic wave beam, known as an acoustical hook, which can be used to manipulate nanoparticles with high precision and accuracy. This innovation has the potential to revolutionize fields such as biomedicine and materials synthesis.
A new ultrasound technique allows veterinarians to evaluate dolphin pregnancies at all stages of gestation, similar to human pregnancy exams. This breakthrough enables the early detection of fetal abnormalities and maternal illness, crucial for saving dolphin pregnancies and informing conservation efforts.
Researchers used ultrasound to shake metal alloy grains into tighter formations during 3D printing, resulting in improved tensile strength and yield stress by 12%. The technique can be applied to various commercial metals, enabling the production of high-performance structural parts or structurally graded alloys.
Researchers have developed a low-intensity ultrasound approach that exploits the unique physical and structural properties of tumor cells to target them. By tuning the frequency to match the target cells, they were able to break apart several types of cancer cells without harming healthy blood cells.
Researchers found that pregnant women exposed to persistent organic pollutants had slightly smaller fetuses than those who were not exposed. The study analyzed ultrasound scans and blood samples from over 2,200 pregnant women, finding a significant association between exposure to POPs and reduced fetal growth.
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 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.
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 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 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.
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.
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 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.
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.
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.
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.
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.