Articles tagged with Ultrasound
In a proof-of-concept study, USC researchers used functional ultrasound imaging to collect high-resolution brain imaging data through a transparent skull implant in a patient. The results suggest that this approach could open new avenues for patient monitoring and clinical research.
Researchers investigated the effectiveness of systemic thrombolysis for acute portal vein thrombosis (PVT) in liver cirrhosis patients. After a 7-day treatment period, 60% of patients achieved full recanalization of the portal vein, with no significant side effects.
This meta-analysis evaluated the diagnostic performance of three-dimensional power Doppler (3DPD) for detecting ovarian cancer in adnexal masses. The results show that 3DPD has good sensitivity and specificity, particularly in complex or suspicious masses. However, it does not add significant value to current 2D US-based approaches.
Researchers found that tiger beetles respond to bat echolocation by producing their own ultrasonic signal, which they believe is a defense mechanism. The beetles' defensive chemicals are not effective at deterring bats, but the sound itself may be used to trick bats into thinking they are noxious.
Researchers evaluated the health of accidentally caught sea turtles using ultrasound imaging to monitor gas levels in their organs. Veterinarians found that ultrasound brightness could be used to differentiate gas levels over time, helping them predict treatment outcomes for bycaught sea turtles.
Researchers have developed a method to use intense ultrasound to extract genetic information from cells, allowing for the detection of cancer biomarkers in blood samples. This approach could enable earlier detection and treatment of cancer, as well as reduce the need for painful biopsies.
Researchers at Pohang University of Science & Technology have developed the first wide field-of-hearing metalens, overcoming traditional acoustic lens limitations. The device achieves up to 140 degrees of field-of-hearing without sound distortion, enabling new applications in acoustic imaging and high-sensitivity sensing.
A multisite review found that adverse events during outpatient care were relatively common and often serious, with 7% of outpatients experiencing at least one event. Adverse drug events were the most common, and these events occurred more frequently among older adults and were often preventable.
A study of 15 brand-name drugs found that competition from 'skinny label' generics saved Medicare nearly $15 billion from 2015 to 2021. The largest savings were seen for rosuvastatin, pregabalin, and imatinib, with actual spending being $16.8 billion versus projected spending of $31.5 billion.
Researchers developed a new method to accelerate high-resolution ultrasound localization microscopy using deep learning, enabling faster and more accurate imaging of microvascular structures. The technique, called LOCA-ULM, improves spatial resolution and processing speed while maintaining sensitivity for functional imaging.
A new consensus statement provides recommendations for improving diagnosis of deep endometriosis through additional pelvic ultrasounds and imaging. The guidelines aim to reduce diagnostic delay and enhance detection of the condition, which affects 10% of women of reproductive age.
Researchers recorded the first documented case of an amphibian using ultrasound for self-defense against predators. The frog's distress call has a frequency range of 7 kHz to 44 kHz, inaudible to humans. This behavior is likely used to scare away potential predators, such as bats and rodents.
Researchers developed Smart-CKD, a computer-aided diagnostic tool integrating ultrasound data and selected clinical variables to assess renal fibrosis progression in CKD patients. The tool has excellent predictive accuracy and high clinical application value, providing a cost-effective solution for guiding patient management.
Researchers developed a real-time temperature reconstruction technique for HIFU treatment, enabling accurate monitoring and planning. This approach uses deep learning to transform ultrasonic images into temperature images in just a few milliseconds.
Artificial intelligence has been developed to spot COVID-19 features in lung ultrasound images, combining computer-generated images with real scans to identify signs of disease. The tool holds potential for developing wearables that track illnesses like congestive heart failure and monitor fluid buildup in patients' lungs.
Researchers demonstrate efficacy of airborne ultrasound technology to detect low-amplitude movements produced by vocalizations at the chest surface. The technology allows for contactless mapping of surface vibrations, offering a better window on respiratory health and enabling better diagnoses of respiratory diseases.
A novel transparent ultrasonic transducer (TUT) developed by POSTECH researchers offers exceptional optical transparency and maintains acoustic performance, surpassing conventional limitations. This breakthrough enables high-depth-to-resolution ratios for ultrasound imaging, with applications in various medical devices and fields.
A new, non-invasive sticker detects anastomotic leaks, life-threatening fluid leaks after surgery, with high sensitivity and specificity. The bioresorbable sticker changes shape in response to pH levels, allowing clinicians to view abnormalities in real-time via ultrasound imaging.
Scientists have developed fUSI technology that enables clinicians to see and map the spinal cord's response to treatments in real-time. This innovation offers improved monitoring of blood flow changes, potentially increasing treatment success rates and optimizing pain relief for patients.
A study published in JAMA Surgery found that 56% of patients using GLP-1 RAs had significant gastric contents on ultrasound before elective procedures, despite adequate fasting. The study suggests that conventional fasting times may need to be reexamined for this patient subset.
A new brain stimulation technique called Patterned Low-Intensity Low-Frequency Ultrasound (LILFUS) has been developed by researchers at the Institute for Basic Science. This non-invasive method uses ultrasound to induce long-lasting changes in brain function and has shown promise in treating various neurological disorders.
A low-frequency ultrasonic device has been developed to quickly reduce blood pressure and activate blood gas exchange in the pulmonary system. This technology uses a higher radial mode of vibration, increasing acoustic signal penetration and reducing scattered signals.
Researchers at Virginia Tech's Fralin Biomedical Research Institute found applying low-intensity focused ultrasound to the brain can reduce pain perception, brain activity, and cardiac responses. The non-invasive technique may provide a new therapeutic option for chronic pain treatment.
A small, wearable ultrasound sticker can monitor organ stiffness and detect subtle changes that signal disease progression. The device has been shown to identify early signs of acute liver failure in rats and may one day help doctors diagnose internal organ failure more effectively.
Researchers used low-intensity focused ultrasound to target the insula, a brain region associated with pain processing. The study found that participants experienced an average reduction in pain of three-fourths of a point, as well as decreased physical responses to pain-induced stress.
A study by Amsterdam UMC shows that Doppler ultrasound can detect placenta problems in small babies, identifying those at higher risk of oxygen deficiency and health issues. The measurement is added to the care plan for these undersized babies, allowing for better detection and monitoring of potential problems.
Researchers have developed an ultrasound method to predict preterm births by analyzing microstructural changes in a woman's cervix. The study found that this approach is effective at predicting risk during first-time pregnancies and combining data with delivery history for subsequent pregnancies.
Researchers at Kaunas University of Technology found that low-frequency ultrasound influences blood parameters, improving oxygen saturation and lowering blood pressure. The study used artificial intelligence to analyze 300 blood samples, revealing the potential for non-pharmaceutical treatment to improve oxygen circulation.
A nurse practitioner at The Hospital for Sick Children reduced invasive scans by 58% after using an AI model to analyze ultrasounds. She developed a new type of bias called induced belief revision through repeated exposure to the model.
Experts recommend increasing the use of intravascular ultrasound (IVUS) in lower extremity revascularization procedures to optimize outcomes and reduce complications. The technique provides detailed information about vessel walls, plaque composition, and blood flow characteristics, enabling more accurate diagnosis and treatment planning.
A research team developed electrostatic materials capable of responding to weak ultrasound, generating static electricity for implantable neurological stimulators. The technology eliminates the need for batteries, reduces device size, and minimizes strain on the human body. Experimental validation confirms its effectiveness in animal m...
A world-first brain stimulation treatment is being developed to treat symptoms of Parkinson's disease and epilepsy using ultrasound technology. The endovascular focused ultrasound technique could significantly improve the quality of life for thousands of people living with neurological diseases.
A new study by Concordia researchers found a strong positive relationship between percentage body fat and echo intensity, indicating more fat within the muscle. The study also revealed differences in lumbar multifidus characteristics between male and female athletes, with females having larger LMs than males.
A team of engineers has developed a novel printing method called deep-penetrating acoustic volumetric printing (DVAP) that uses soundwaves to solidify biologically compatible structures in deep tissues. The technique involves a specialized ink that reacts to ultrasound waves, enabling the creation of intricate structures for biomedical...
Researchers have developed a wearable ultrasound system that can provide clinically relevant information about muscle function during dynamic physical activity. The device uses a patented approach to transmit long-duration chirps, allowing for real-time analysis of muscle dynamics and aiding in the rehabilitation process.
Researchers at ITMO University improved the nutritional value and taste of plant-based milks by using pre-freezing and ultrasound treatment methods. These methods boosted the extraction of beneficial microelements like iron, potassium, and zinc, as well as polyphenols, resulting in improved antioxidant activity.
Researchers have developed a needle-free ultrasound vaccine delivery technique that produces a higher immune response than traditional methods. By harnessing acoustic energy to clear passages and drive drug molecules into cells, the approach shows promise in reducing costs and increasing efficacy while minimizing risks.
A new wearable ultrasound patch can accurately image organs within the body without traditional ultrasound equipment, enabling earlier detection of cancers deep within the body. The patch is designed to measure bladder volume, providing valuable insights into kidney health and wellness.
Researchers created single-chain nanoparticles with thermoresponsive properties, which can be used to produce high-resolution internal images of the human body. These particles create a rich optical contrast that can be used to examine tumors more closely.
Researchers at Johns Hopkins University have developed a new algorithm to filter out unwanted signals in medical images of darker skin tones, producing significantly sharper images. This breakthrough aims to mitigate bias in imaging technologies and improve surgical navigation and medical diagnostics for patients with diverse skin tones.
Researchers at ETH Zurich found that targeting deep sleep with brief tones increases heart contractions, improving cardiovascular function. This leads to increased blood flow and a more efficient pumping mechanism.
Researchers at Ohio State University have discovered that ultrasound can break down harmful PFAS compounds in groundwater, rendering them harmless. The technique works by emitting sound waves that compress and heat up the solution, breaking down the stable carbon-fluorine bonds that make up the toxic chemicals.
Researchers have developed a noninvasive brain biopsy technique using ultrasound and microbubbles to access brain tissue without surgery. The technique increases circulating tumor DNA by 1.6- to 5.6-fold, providing valuable genetic information for treatment decisions.
Researchers at Rice University have developed a non-invasive gene delivery technique using ultrasound to efficiently deliver clinically used gene therapy vectors throughout the brain. The study, published in Gene Therapy, shows that opening more sites within targeted regions improves gene delivery efficiency.
A new drug delivery platform uses ultrasound to target cancer cells, reducing side effects and increasing precision. The system employs gas vesicles and mechanophores to control the release of drugs in response to ultrasound waves.
A study found that ultrasound scans performed by emergency physicians can nearly halve the time patients spend in emergency departments. This technology, known as point-of-care ultrasound (POCUS), enables faster diagnoses and treatment for suspected deep vein thrombosis (DVT).
Researchers developed statistical models using ultrasound measurements and protein levels to predict stillbirth, neonatal death, or extreme preterm delivery. The findings aim to identify suitable candidates for clinical trials testing novel treatments for fetal growth restriction.
A new imaging technique, multifocal acoustic radiation force-based reverberant optical coherence elastography (RevOCE), has been developed to measure the elasticity of multiple eye components simultaneously. This approach offers high resolution measurements of the stiffness of eye structures and could revolutionize how we study ocular ...
A new study suggests that transcranial ultrasound stimulation can be used to change specific types of activity within the brain, paving the way for targeted treatments of mental health conditions. The research found that TUS induced significant changes in GABA concentration and altered communication between brain regions.
Researchers at Columbia University are using focused ultrasound to non-invasively open the blood-brain barrier, enabling delivery of gene-editing vectors to treat Alzheimer's and Parkinson's. The technology has shown promising results in reducing beta amyloid and tau loads, as well as improving memory deficits.
Researchers developed a noninvasive technique to visualize and differentiate nerve tissue using multispectral photoacoustic imaging. The study revealed the optimal wavelengths for identifying nerve tissue, which could improve nerve detection and segmentation techniques.
Researchers developed a microfluidic platform harnessing acoustic radiation force to manipulate droplets in air, achieving jump heights of up to 128mm. The platform allows for control over the direction and movement of droplets, enabling potential applications in scientific experiments and three-dimensional displays.
Researchers at MIT developed a wearable ultrasound device that can detect breast cancer in early stages, reducing the risk of late-stage diagnosis. The device, attached to a bra, allows users to image breast tissue from different angles and is portable, easy to use, and provides real-time monitoring.
A commercial AI tool did not provide additional benefit to mammography with supplementary ultrasound in patients with dense breasts. Mammography with supplementary ultrasound showed higher accuracy, specificity, and lower recall rate compared to AI alone or combined with US.
Researchers from Spain used high-power ultrasound technology to treat Monastrell grapes, resulting in improved color and sensory profile of the rosé. The study found that sonication enhanced the extraction of volatile compounds, such as terpenes, which improve aroma.
Researchers have developed bat-inspired drones to eliminate moth pests from greenhouses using sound-based technology. The drones' noise affects moth flight behavior, causing some to fly erratically and others to cease flying altogether.
Researchers developed a polarization-angle-resolved Raman microscope to visualize disorder effects on ferroelectric polarization. The study reveals slow response of nanometer-scale electric polarization, enabling significant charge storage and enhanced dielectric properties.
Researchers have developed a biodegradable ultrasound device that can open the blood-brain barrier, allowing chemotherapy to penetrate and kill brain cancer cells. The device is as powerful as traditional ceramic-based devices and has shown promising results in animal trials.
Researchers have developed a sonodynamic cancer immunotherapy based on semiconducting polymer nanoparticles that can be activated by ultrasound, effectively treating orthotopic pancreatic cancer in mouse models. The treatment induces immunogenic cell death and kills cancer cells without causing excessive immune responses.
A recent study published in the journal CANCER found that supplemental ultrasound screening can detect breast cancers missed by mammography, but it requires careful targeting of high-risk groups. Women with dense breasts are at higher risk of interval invasive breast cancer, and clinicians should consider other breast cancer risk facto...