Articles tagged with Ultrasound
A new study found that focused ultrasound thalamotomy improves quality of life in people with medication-resistant Parkinson's disease. The procedure showed significant and sustained benefits in functional disability and overall well-being.
Researchers developed a method to release drugs from nanoparticle cages in small areas of the brain, reducing neural activity. The technique uses focused ultrasound to jiggle drug molecules loose and has potential for treating various conditions, including cancer.
Elective induction of labor in uncomplicated singleton pregnancies from 39 weeks' gestation is associated with lower complication rates. Women should be aware that induction can lead to a more prolonged and painful process.
University of Sussex researchers create SoundBender, a hybrid system that combines phased arrays and acoustic metamaterials to overcome limitations in previous ultrasound levitation set-ups. The technology enables real-time adjustments, tactile feedback, and manipulation of non-solid objects.
A new study suggests that ultrasound measurements after surgery can predict the likelihood of arteriovenous fistula maturation in individual dialysis patients. At 6 weeks after AVF creation, ultrasound measurements of AVF blood flow, diameter, and depth predicted future AVF maturation with moderate accuracy.
Researchers developed a smart, flexible photoacoustic imaging technique using a compact fiber laser that may have potential applications in wearable devices, instrumentation, and medical diagnostics. The new technique provides better sensitivity than existing piezoelectric transducers for medical imaging.
Researchers at the University of California - San Diego have developed a wearable ultrasound patch that can monitor central blood pressure in major arteries up to four centimeters below the skin. The device provides accurate, precise readings and has potential applications in real-time monitoring of patients with heart or lung disease.
Engineers at the University of British Columbia have developed a new ultrasound transducer that could lower costs to as low as $100. The device uses tiny vibrating drums made of polymer resin, reducing manufacturing costs.
A novel technique developed by Hong Chen uses focused ultrasound to target drug delivery to the brainstem, bypassing the blood-brain barrier. This approach has shown promise in treating diffuse intrinsic pontine gliomas (DIPG), a childhood brain cancer with a five-year survival rate of less than three percent.
Researchers developed a new device combining low-intensity laser light and therapeutic ultrasound, reducing fibromyalgia pain by 73.37%. The treatment showed better analgesic and anti-inflammatory effects when applied to the palms instead of tender points.
A study defines mechanisms behind focused-ultrasound-assisted treatment of brain tumors, improving drug delivery across the blood-brain barrier and into abnormal tumor tissues. The approach enhances permeability of endothelial cells lining tumor blood vessels, increasing cellular uptake of anti-cancer drugs.
Researchers at the University of Leicester conducted longitudinal ultrasound studies on mice with vascular disease to track disease progression. The study showed that ultrasound imaging can detect early changes in blood vessel function that may serve as a marker for detection of disease.
A new procedure harnessing ultrasound technology to reposition kidney stones is being tested in emergency patients at UW Medicine's Harborview Medical Center and University Center. The approach could benefit astronauts as well as Earth-side patients, providing quick relief and avoiding unnecessary pain medications.
A new all-optical ultrasound imager has been demonstrated for video-rate, real-time 2D imaging of biological tissue. The system offers significant flexibility in switching between different imaging modes, such as 2D and 3D imaging, without the need to swap probes.
A study published in The Lancet questions the effectiveness of screening programs for abdominal aortic aneurysms in older men, citing the potential for over-diagnosis and unnecessary treatment. The research suggests that the benefits of screening may not outweigh the harms, particularly with decreasing disease incidence.
Researchers have developed an algorithm inspired by dolphin echolocation, which can disentangle overlapping signals and provide more precise information on object shape. This breakthrough technology could improve medical ultrasound imaging and measure organ membrane thickness, among other applications.
Researchers at St. Poelten University of Applied Sciences developed an ultrasound-firewall app that detects and blocks acoustic cookies, allowing users to control their device's audio data transmission. The project aims to provide a new standard for secure ultrasonic communication and protect user privacy.
A Loyola Medicine study found that new ultrasound guidelines can reliably identify children who need a biopsy for thyroid cancer. The American College of Radiology's system grades nodules on a scale, with higher scores indicating more suspicious cancer.
Exposure to ultrasonic sound waves may cause adverse health effects such as nausea, dizziness, and ringing ears. A growing body of evidence suggests that public safety guidelines are based on inadequate data from studies performed decades ago.
Researchers at Vanderbilt University have developed an ultrasound helmet that can create real-time images of the brain during surgery, allowing for more precise control over software and robotics using only thoughts. The technology uses machine learning to account for distortion and integrate electroencephalogram (EEG) technology to pr...
A new study uses the COstatus monitor to directly measure cardiac output in neonates, providing a more accurate and less invasive way to gauge heart function. The results show that cardiac output can be precisely measured in the first two weeks of life with no adverse events.
Researchers have developed next-generation contrast agents that can be turned off using ultrasound, allowing for clearer MRI scans. The new technology relies on nanoscale structures called gas vesicles, which bounce back sound waves and react differently to magnetic fields.
Acute aortic syndrome is a group of conditions that can be challenging to diagnose due to similar clinical manifestations. Intravascular ultrasound imaging has been found to be useful in discerning the different forms of acute aortic syndrome, including aortic intramural hematoma.
The new technology, called Motion Model Ultrasound Localization Microscopy, allows for the tracking of individual microbubbles in real-time, enabling the reconstruction of fine vascular networks and monitoring of blood flow. This technique has potential applications in cancer treatment, particularly in sonoporation therapy.
Researchers create StimDust, the smallest deep-tissue stimulator capable of stimulating major therapeutic targets in the peripheral nervous system. The device is powered wirelessly by ultrasound, with an efficiency of 82 percent, and can be implanted in minimally invasive procedures to monitor and treat diseases.
A researcher at the University of Pittsburgh is using ultrasound imaging to develop a more precise interface between exoskeletons and individual muscles in people with incomplete spinal cord injuries. This technology aims to provide more efficient rehabilitation tools, reducing the risk of falls during robot-assisted walking.
Researchers have developed a stretchable ultrasound patch that can image internal imperfections on curved surfaces without water or gel. The device uses an island-bridge structure and piezoelectric transducers to produce ultrasound waves, enabling real-time imaging and videoing of complex structures.
Researchers developed a point-of-care device that simultaneously probes patient hemodynamics, chemical constitution, and anatomy to diagnose thyroid nodules. The device uses near-infrared time-resolve spectroscopy and diffuse correlation spectroscopy to collect tissue data, promising improved accuracy and reduced costs.
Researchers have developed a more accurate way to screen for preeclampsia, a condition affecting 2-3% of pregnancies, which can lead to serious health effects for both mother and child. The new screening method uses biomarkers to identify high-risk women, resulting in increased detection rates for preterm-PE by up to 82%.
Researchers have reported significant advancements in measuring blood flow velocity in deep tissues using a handheld ultrasound probe. The new technique, known as photoacoustic flowmetry, has the potential to bring diagnostic capabilities closer to clinical use.
A new study published in Radiology found that imaging services played a crucial role in managing Olympic athletes with sports-related injuries and disorders. The study showed that MRI was used for nearly 60% of all imaging performed for diagnosis, highlighting its importance in fast and relevant diagnoses.
Scientists used advanced microscopy techniques to study the atomic structure of PMN, a widely used relaxor material in ultrasound and sonar applications. The findings reveal that atoms are arranged in a gradual gradient, differing from conventional wisdom predictions.
Researchers at Stanford University have developed a wake-up receiver that uses ultrasonic signals to turn on devices, extending battery life. The technology has potential applications in designing the next generation of networked devices, including 'smart' devices that can communicate directly with each other without human intervention.
Scientists successfully use ultrasound to propel gold nanowires carrying the Cas9-sgRNA complex across cell membranes, enabling targeted gene knockout. The system is simple and requires minimal payload, making it a promising therapeutic approach for cancer treatment.
The American Institute of Ultrasound in Medicine (AIUM) has developed a roadmap for improving the quality of ultrasound imaging in obstetrics and gynecology. A consensus curriculum and competency assessment tools have been established to standardize ultrasound training in residency programs, aiming to enhance patient safety and quality...
Researchers at Caltech created bacterial cells that can reflect sound waves, allowing them to visualize and locate therapeutic bacteria in the body. This technology uses ultrasound machines to generate images of bacterial cells, enabling doctors to assess treatment efficacy.
University of Illinois researchers create an oxygen-sensitive molecular beacon that emits ultrasound signals in response to light, enabling real-time imaging of hypoxic tumors and constricted arteries. This non-invasive method has the potential to guide surgical procedures and treatment plans.
Researchers have developed an optical ultrasound needle that provides unprecedented real-time imaging of soft tissues during keyhole procedures, reducing the risk of complications and improving surgical outcomes. The technology uses a miniature optical fibre to deliver light pulses, generating ultrasonic waves for image guidance.
A new sensor molecule allows researchers to visualize calcium concentrations in living animals without genetic modification or radiation exposure. This breakthrough enables better understanding of disease processes and has potential applications in improving medical treatments.
Researchers have created a novel system that enables aggregates composed of magnetized particles to roll along a channel using a combined acoustic and magnetic field. The system has shown promise for delivering drugs to hard-to-reach sites within the body, with potential applications in cancer treatment.
A novel imaging system called Ultrasound Bioprobe enables high-resolution views of sub-cellular structures in live cells, overcoming previous limitations. This breakthrough has potential applications in early diagnostics and therapeutic strategies for diseases.
Researchers at George Mason University are developing a new ultrasound-based system to help people with upper-body extremity prostheses, including fine-tuned motor control of fingers and thumb. The technology differentiates between muscle groups better than electrodes on the skin surface.
Researchers at Brigham and Women's Hospital have developed a system to temporarily loosen the blood-brain barrier using microbubbles, allowing for real-time monitoring and controlled delivery of drugs to the brain. The approach offers improved safety and efficacy control for human clinical trials underway in Canada.
Researchers are conducting a clinical trial using focused ultrasound and immunotherapy to destroy metastatic breast cancer cells. The treatment aims to prompt an immune response, allowing the body's white blood cells to recognize and kill the cancer cells.
A $10 microchip can be mounted onto a traditional ultrasound probe, providing 3-D imaging abilities similar to CT scans or MRIs. This technology has the potential to improve patient care, especially in emergency medicine and trauma cases where CT scans are not available.
A small pilot study found that focused ultrasound treatment improved hand tremor by up to 62% in participants with Parkinson's disease, with minimal side effects. Further research is needed to confirm the effectiveness and potential role of this scalpel-free surgery approach.
A longitudinal neuroimaging study found that fetal MRI can detect brain damage caused by Zika exposure in utero more effectively than standard ultrasound. The study revealed three pregnancies with abnormal fetal MRIs showing extensive areas of brain damage, which were not detected by ultrasound.
A new cardiac catheter combines fluorescence lifetime imaging (FLIm) with intravascular ultrasound to measure plaque composition, providing a more accurate prediction of heart attacks. The device has been tested in living swine hearts and human coronary artery samples, showing promising results.
Pediatric emergency departments are more likely to use ultrasounds over CT scans to diagnose abdominal pain in children due to reduced radiation exposure. According to the study, general emergency departments still rely heavily on CT scans for this purpose.
The study found that utilization rates for musculoskeletal extremity imaging modalities increased significantly between 1994 and 2013, with MRI experiencing an initial period of rapid growth. The four most common modalities - radiography, ultrasound, MRI, and CT - saw increases in volume and per-beneficiary utilization.
Researchers at Boston Children's Hospital developed a novel system using ultrasound to trigger the release of nerve-blocking agents, providing on-demand pain relief. The system, using ultrasound-triggered liposomes, has potential for replacing addictive opioids and short-lasting local anesthetics.
A team of researchers from UCR developed a ceramic skull implant that allows doctors to deliver therapeutic sound waves into the brain. The material, made of Yttria Stabilized Zirconia, is biocompatible and shatter-resistant, making it ideal for implants.
Chulhong Kim, a POSTECH Associate Professor, has received the IEEE-EMBS Early Career Achievement Award for his contributions to biomedical imaging. His lab developed world-first photoacoustic gastro-intestinal tract imaging using organic agents.
Researchers have developed new noninvasive ultrasound techniques to image the brain and liver, overcoming limitations caused by bones in these areas. The DORT method uses a multi-element array to focus ultrasound waves through bones, while a lens-based transcranial focusing device has been patented for transskull imaging.
Researchers use tiny bubbles and ultrasound to safely open the blood-brain barrier, a heavily guarded system that prevents drug delivery. This breakthrough approach aims to advance next-generation brain therapies without surgery.
A new study has investigated the use of one-needle versus two-needle procedures for ultrasound-guided irrigation in treating rotator cuff calcific tendinopathy. The results showed that using two needles was more efficient for hard calcifications, while one needle was sufficient for fluid calcifications.
Researchers at North Carolina State University have developed a new surgical tool using low-frequency intravascular ultrasound to break down blood clots. The tool breaks down clots into fine particles, reducing the need for high doses of blood thinners and potentially lowering treatment time.
Researchers found no difference in important clinical outcomes for pediatric trauma patients who received routine ultrasound evaluations compared to those without. The study aimed to determine whether ultrasound could safely decrease CT scan use and improve resource use, but results showed minor savings of $1,200 per patient.
Machine learning techniques are successfully applied to image-based diagnosis, disease detection, and prognosis in medical imaging. The review focuses on denoising methods using machine learning approaches to develop a systematic decision for diagnosing and prediction of medical images.
A recent study found that follow-up imaging is significantly less when initial emergency department (ED) ultrasound examinations are interpreted by a radiologist rather than a nonradiologist. Radiologists interpret the vast majority of ED ultrasounds, with 81.6% of cases handled by them and 36,788 cases handled by nonradiologists.