Articles tagged with Ultrasound
Researchers at MIT used computer simulations to model the mechanical response of coronaviruses to ultrasound vibrations. They found that frequencies between 25-100 megahertz triggered shell and spike collapse within a millisecond.
Researchers created a quadruple fusion optical and ultrasound imaging system, integrating four modalities: ultrasound, photoacoustic, optical coherence tomography, and fluorescence imaging. The system uses a transparent ultrasound transducer to produce high-quality images without limitations.
A multidisciplinary research team has built nanoscale bubbles with customizable outer shells that can travel to and penetrate inaccessible areas in the human body. The breakthrough enables clearer ultrasound images and potentially improved disease detection and targeted drug delivery.
A large multidisciplinary study led by King's College London found that MRI scanning can show malformations in great detail, including their effect on surrounding structures. The procedure is safe for pregnant women and their babies, making it a valuable tool for clinicians and parents.
Researchers have developed a new technique called sonolithography, which harnesses the power of sound to create precise patterns on surfaces from aerosol droplets or particles. This method has far-reaching implications for biomedicine, electronics, and other fields, offering improved speed, cost, and precision in non-contact patterning.
A new radiology research study suggests that focused ultrasound treatment may induce an immunological healing response in Alzheimer's patients, and open the blood-brain barrier. The treatment targets the hippocampus, which plays a large role in learning and memory.
Researchers identified 23 cases of axillary adenopathy after COVID-19 vaccination, with 13% being symptomatic. The study highlights the importance of considering vaccination date and laterality in assessing imaging-detected axillary adenopathy.
Researchers found that higher lung ultrasound scores correlated with increased risk of ICU admission, intubation, and death in severe COVID-19 patients. The study used a scoring protocol covering 12 lung regions to predict patient outcomes.
Sonoporation, a technique combining ultrasound with microbubbles, creates openings in cell membranes, allowing enhanced drug or gene intracellular delivery. Recent advances using contrast agents are expanding applications to gene expression, apoptosis, differentiation, and epigenetic reprogramming.
Researchers have developed targeted ultrasound techniques to treat various brain diseases such as Alzheimer's, Parkinson's, and stroke. The new methods aim to improve brain functions by activating functional neurons without significant side effects.
A hybrid approach combining hardware- and computer vision-based tracking improves the accuracy of laparoscopic ultrasound imaging. By using a custom tracking mount with EM sensors and CV markers, the system can track the transducer's pose with high accuracy.
A new ultrasound technique called MRI-guided focused ultrasound ablation (MRgFUS) effectively treats intermediate-risk prostate cancer with minimal side effects. Treatment was successfully completed in all 44 men, with no major adverse events and 93% disease-free at the treatment site.
Researchers report two more patients in minimally conscious states show significant improvement after receiving low-intensity focused ultrasound treatment. One patient demonstrated ability to respond to commands and communicate with family members, while another showed recognition of objects and understanding of speech.
A light-weight, wirelessly controlled brain stimulator has been developed to treat cerebral infarction using wearable wireless ultrasound devices. The device significantly improved motor functions in a rat stroke model, paving the way for non-invasive neurorehabilitation therapy.
Researchers from RUDN University and RLT propose that stimulating lymphocyte regeneration with combined biophysical radiances can help fight COVID-19. They found a correlation between bioenergetics and immune system reactions, suggesting a potential solution to the disease's progression.
Engineers developed a new technique to eliminate particularly tough blood clots by using engineered nanodroplets and an ultrasound drill to break up the clots from the inside out. In vitro testing showed promising results, with the use of nanodroplets, ultrasound, and drug treatment reducing clot mass by 40%, plus or minus 9%.
Researchers found that focused ultrasound improved parkinsonian symptoms by 10 points in treated patients, with potential benefits for those with asymmetrical symptoms and limited treatment options. However, further refinements of the technology are needed to ensure reliability and safety.
Researchers from Lithuania's three top universities have developed a method to improve anticancer drug delivery by combining low-intensity pulsed ultrasound with microbubbles. The team found that the rate of microbubble survival time is the best indicator for determining sonoporation efficiency.
Researchers developed a method using ultrasound imaging to score lung health, indicating patient outcomes. The tool predicted worsening COVID-19 cases with high accuracy, allowing physicians to prepare better care.
Scientists developed vanadium-doped titanium dioxide spindles that sensitize cancerous tumors to ultrasound waves, killing tumor cells without harming healthy tissue. The spindles catalyze chemical processes in the tumor microenvironment, attacking cells with sound waves and chemotherapy.
Researchers used focused ultrasound to improve delivery of IVIg to the hippocampus, increasing antibodies and neurogenesis by four-fold in a mouse model of Alzheimer's. This technique may help boost the efficacy of immunotherapy for AD treatment.
A short training course on handheld ultrasound devices has significantly increased confidence among geriatricians in using the technology and interpreting images, with a notable increase in comfort level tripling within four hours and extending to six months.
The University of Arizona College of Medicine is developing a lung ultrasound education program for rural emergency medicine providers to better diagnose COVID-19. Lung ultrasound can be particularly useful in rural EDs due to limited access to COVID-19 testing and the disparate impact of COVID-19 on rural populations.
Researchers at KIST demonstrated the mechanism behind secondary cavitation clouds generated during HIFU treatment, allowing for precise removal of target tissue. The study laid the groundwork for ultra-precision focused ultrasound technology, enabling safe and effective destruction of tumor cells without surgery.
This article discusses the integration of ultrasound imaging in medicine and biology, enabling advanced techniques such as molecular imaging and therapy. The use of ultrasound contrast agents and microbubble cavitation has opened up new opportunities for intracellular delivery and cancer treatment.
Researchers have developed a chip-based technology that generates high-resolution sound profiles with intense sound pressure. This allows for more effective and easier ultrasound therapy, potentially benefiting patients with cancer, brain conditions, and other diseases. The technology also enables the creation of organoid models for dr...
OnSight Medical's AI-based software provides real-time expert-level scans with high-quality 4D images, enhancing access to cardiac ultrasound in underserved populations. The company won the TCT Connect 2020 Shark Tank Innovation Competition and received a $200,000 award from the Jon DeHaan Foundation.
Researchers found that a D-dimer blood test alone can accurately identify patients at risk of deep vein thrombosis (DVT), allowing for targeted follow-up with ultrasound examinations. The study suggests this simplified approach could reduce unnecessary tests and improve diagnosis accuracy.
Researchers developed a novel ultrasound technique that quantifies lung scarring and detects lung fluid in rats, showing promise for assessing pulmonary fibrosis and edema. The non-invasive method could reduce costs and improve patient care by providing accurate, measurable assessments of lung health.
A systematic review and meta-analysis found that third-trimester ultrasound screening has limited effectiveness in predicting macrosomia and associated neonatal morbidity. The authors recommend caution before introducing universal third-trimester screening for macrosomia.
A new survey among vascular access and emergency department clinicians reveals clinically meaningful differences in ultrasound-guided peripheral IV (UGPIV) procedures and supplies. The study highlights the urgent need for standardized and consistent UGPIV practices to minimize contamination and promote patient safety.
A team of Cornell researchers led by Brad Ramshaw discovered a possible third type of superconductor called g-wave. They used resonant ultrasound spectroscopy to study the material's symmetry properties and found that it is a two-component superconductor with no electrical resistance. This discovery could lead to major breakthroughs in...
Scientists at Helmholtz Zentrum München and TUM developed the world's smallest ultrasound detector, leveraging silicon photonics technology to achieve super-resolution imaging. This innovation enables high-sensitivity detection in smaller sizes than previously possible, opening up new avenues for sensing and imaging applications.
A new US study finds that HIFU provides adequate control of prostate cancer while avoiding significant side effects, with nearly 90% of men able to avoid or delay radical treatment. The non-invasive therapy also preserves sexual function and urinary symptoms, with no serious complications reported.
North Carolina State University researchers have developed a novel ultrasonic imaging device that can optically display an acoustic signal on the surface of a piezoelectric transducer. This approach eliminates electrical signal processing altogether, resulting in reduced costs and increased efficiency. The technology has the potential ...
Researchers found that up to one-third of physicians ordered thyroid ultrasounds without a clear reason supported by clinical guidelines. The study suggests clearer guidelines could help reduce low-risk thyroid cancer cases.
Researchers at KIST found a strong correlation between ultrasonic stroke rehabilitation treatment and changes in delta brain waves, which can improve motor functions. The study lays the foundation for developing a patient-specific stimulation method to estimate therapeutic effects.
A recent study published in American Journal of Roentgenology found that lung ultrasound was highly sensitive for detecting COVID-19 abnormalities, with B-lines, thickened pleural line, and pulmonary consolidation being the most commonly observed features.
A new study found that training doctors in anaesthetic skills using Lego bricks can improve their performance. The study used a simple task where participants copied shapes using bricks to see in a mirror, and found that this improved their ability to perform ultrasound-guided regional anaesthesia tasks.
Researchers are developing an active bandage with integrated sensors to monitor and accelerate the wound healing process in real-time. The device will enable individualized interventions to accelerate healing through continuous sensing and actuation capabilities.
The document proposes standardized nomenclature for arterial and venous waveforms, aiming to improve communication amongst vascular professionals and ultimately enhance patient care. It covers various vascular territories throughout the body, including carotid, peripheral arterial, and renal circulation.
A new study published in Radiology found that 3D color-flow ultrasound is an effective, noninvasive method for measuring blood flow with high accuracy and reproducibility. The technique overcomes limitations of current methods such as blood pressure and 2D ultrasound, which provide only surrogate metrics or are prone to errors.
A new non-invasive ultrasound therapy has been shown to be safe and effective in improving heart condition and clinical status of patients with severe symptomatic aortic valve stenosis. The therapy, developed by Cardiawave, widens the aortic valve opening using high-intensity ultrasounds, eliminating the need for invasive treatment.
Researchers develop wireless ultrasound transducer that uses microwave absorption to generate sound waves, avoiding acoustic losses. The device consists of a copper ring with an oil-filled envelope, which concentrates microwaves into a hot-spot for efficient ultrasound emission.
Researchers at UVA Health System are pioneering a new technique using focused ultrasound to destroy cancer cells without generating heat. The approach, tested on cell samples in lab dishes, shows promise against glioblastoma and other difficult-to-treat cancers.
Researchers have developed a new non-invasive ultrasound method that compensates for distortions in soft tissue structure, providing ideal resolution and contrast optimized for each pixel. This approach has applications in biomedical diagnosis, optical microscopy, and industrial material inspection.
Jan Kubanek's new procedure uses high-frequency sound waves to alter brain state, treating mental disorders and neurological conditions. The non-invasive treatment shows promise in targeting individual neural circuits for personalized therapy.
A new software application, developed by the University of Trento in collaboration with the University of Eindhoven, provides support for diagnosing Covid-19. The technology uses artificial intelligence to analyze lung ultrasound scans, offering faster and more accurate diagnoses.
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 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.
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.
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.