Chitnis receives funding for study of wearable ultrasound systems
Dr. Parag Chitnis at George Mason University leads a multi-disciplinary team researching wearable ultrasound systems for tendon injury prevention and joint assessment.
Ultrasound
Articles tagged with Ultrasound
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A new paradigm in high-speed photoacoustic small animal whole-body imaging
A new PACT system offers rapid imaging of living organisms, enabling the tracking of whole-body dynamics and disease progression. The system achieves spatial resolution of approximately 212 micrometers and enables the visualization of oxygen saturation across complex biological systems.
Lithuanian scientists are developing an ultrasound device to improve blood circulation and prevent diabetes complications in the lower extremities
Scientists from Kaunas University of Technology and Lithuanian University of Health Sciences developed a non-invasive ultrasonic foot stimulation device to improve blood circulation in the lower limbs. The device uses low-frequency ultrasound to stimulate blood flow and regulate thrombogenesis, immune response, and inflammatory processes.
Wearable ultrasound tech for muscle monitoring opens new possibilities in healthcare and human-machine interfaces
Researchers developed a wearable ultrasound device that tracks muscle function without invasive procedures, offering high-resolution imaging and wireless monitoring capabilities. The technology has potential applications in respiratory health and human-machine interfaces.
Ultrasound can be used as search and rescue tool for the brain
Researchers develop transcranial ultrasound stimulation (TUS) as a non-invasive therapy for brain-related issues, with potential for personalized treatments. A 'search and rescue tool' for the brain, TUS enables precise targeting of specific areas before treatment.
Surveillance imaging and GAAD/GALAD scores for detection of hepatocellular carcinoma in patients with chronic hepatitis
The GALAD algorithm combines AFP, AFP-L3, and PIVKA-II for HCC detection. Combining GAAD, GALAD, or PIVKA-II with ultrasound improves diagnostic efficiency compared to recommended strategies.
Guideline on handling endobronchial ultrasound transbronchial needle samples released by CHEST
The American College of Chest Physicians has released a new clinical guideline on endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) specimen processing and handling to standardize the process. The guidelines aim to improve diagnostic yield and specimen preservation for downstream ancillary testing.
Presence of subclinical atherosclerosis is marker of mortality and its progression increases risk of death
A new study published in the Journal of the American College of Cardiology found that subclinical atherosclerosis is independently associated with the risk of dying from any cause. The study also showed that monitoring the progression of atherosclerosis can improve the prediction and prevention of death from any cause.
Most accurate ultrasound test could detect 96% of women with ovarian cancer
A new study found that the IOTA ADNEX ultrasound model can detect up to 96% of ovarian cancers in postmenopausal women, outperforming the current standard test. The research team recommends replacing the risk of malignancy (RMI1) test with the IOTA ADNEX model.
Medical imaging breakthrough could transform cancer and arthritis diagnosis
A new hand-held scanner can generate highly detailed 3D images in seconds, paving the way for earlier disease diagnosis. The technology uses laser-generated ultrasound waves to visualize subtle changes in blood vessels, helping inform patient care and diagnose conditions like cancer and cardiovascular disease.
Histotripsy liver tumor trial successful, early clinical adoption recommended
The #HOPE4LIVER trial demonstrated the safety and efficacy of histotripsy as a treatment for primary and metastatic liver tumors, achieving a 95% technical success rate. The procedure's non-invasive nature and ability to spare critical vessels and bile ducts offer promising alternatives to traditional treatments.
New guideline details how to manage CVD risk before, during & after noncardiac surgery
The 2024 guideline provides comprehensive recommendations for assessing cardiovascular disease risk and managing patients taking SGLT2-inhibitors. It also highlights the importance of judicious screening and evidence-based management of cardiovascular conditions before, during, and after noncardiac surgery.
20-week ultrasound in pregnancy is a key driver of disparities in prenatal diagnosis of congenital heart defects
A study found that patients with Medicaid are less likely to receive prenatal diagnosis of congenital heart defects due to lower rates of 20-week ultrasounds. The lead author believes increasing 20-week ultrasound utilization can mitigate insurance-related disparities and improve outcomes for children with CHD.
Adhesive cortical device enables artifact-free neuromodulation for closed-loop epilepsy treatment
Researchers developed a shape-morphing cortex-adhesive sensor to monitor brain activity during tFUS stimulation, enabling real-time adjustments and suppressing seizures. The innovative device overcomes challenges in existing cortex-interfacing devices, providing stable and accurate monitoring.
Pushing kidney-stone fragments reduces stones’ recurrence
A recent study found that using a handheld ultrasound device to nudge patients' kidney-stone fragments can significantly lower their risk of returning for another operation within five years. The procedure has been shown to reduce the recurrence rate by 70% in patients with small fragments remaining in the kidneys.
New noninvasive technique provides effective treatment for urinary stones
A noninvasive ultrasound technology called Break Wave lithotripsy (BWL) was found to be highly effective in treating urinary stones, with an 88% fragmentation rate. Patients were able to undergo treatment without anesthesia and had a high success rate of being completely stone-free after follow-up CT scans.
Scientists leverage ultrasound to build new blood vessels in living tissue
Biomedical engineers at the University of Rochester have developed a novel technique using ultrasound waves to organize endothelial cells into patterns that promote the growth of new vessel networks. The team aims to treat ischemic injuries caused by damaged tissue in reconstructive and plastic surgeries.
Project takes aim at 'forever chemicals' with a new hybrid 'SonoBio' technology
A new hybrid technology called SonoBio uses high-frequency ultrasound in combination with biodegradation to break down per- and poly-fluoroalkyl substances (PFAS), a class of 'forever chemicals'. Researchers aim to make PFAS completely harmless by turning them into carbon dioxide and fluoride.
Expert panel endorses new ultrasound terminology for early pregnancy
A uniform lexicon has been developed and endorsed by a multi-medical society panel to describe observations on ultrasound during the first trimester of pregnancy. The new terms aim to minimize bias, clarify findings, and respect patient preferences.
Quantitative ultrasound parameters offer new tool for diagnosing lung disease
Researchers have developed a suite of parameters that can be used to quantitatively measure different physical characteristics of the lung. The parameters were found to be highly sensitive and specific for diagnosing fibrosis and edema in an animal model, using only five necessary parameters.
Rice lab pioneers noninvasive measurement of gene expression at target locations in the brain
The Rice University lab has developed a new noninvasive technique, called REMIS, that can measure gene expression and gene therapy delivery in specific brain regions using ultrasound. This technology could revolutionize brain-based gene therapy for neurodegenerative diseases.
Researchers solve long-standing challenge for piezoelectric materials
Piezoelectric materials are used in sonar and ultrasound applications, but can deteriorate due to heat and pressure. Researchers have developed a technique to depole and repole these materials at room temperature, allowing for easier repair and paving the way for new ultrasound technologies.
Diagnostic accuracy of an integrated AI tool to estimate gestational age from blind ultrasound sweeps
A novel AI tool has been shown to accurately estimate gestational age from blind ultrasound sweeps, comparable to expert sonographers. The technology has the potential to democratize prenatal care in resource-limited settings by expanding access to quality diagnostic tools without the need for expensive equipment or specialized training.
Continuous, noninvasive blood pressure monitoring using sound
Researchers propose a noninvasive method to track blood pressure using resonance sonomanometry, stimulating an artery with sound waves and measuring its response. The device showed promising results in initial human trials, with measurements closely matching those from traditional blood pressure cuffs.
Towards next-gen indoor lighting: novel tunable ultrasonic liquid crystal light diffuser
Researchers developed a novel tunable ultrasonic liquid crystal light diffuser that allows changing the diffusion direction. The device uses non-coaxial resonant flexural vibration to control molecular orientation and refractive-index distribution, resulting in controlled light distribution.
Ultrasonography of hepatocellular carcinoma: From diagnosis to prognosis
This paper reviews various ultrasound techniques for HCC surveillance, diagnosis, and treatment, highlighting their clinical applications and benefits. Regular monitoring with gray-scale ultrasound is recommended for high-risk patients, while Doppler ultrasound techniques provide critical information for therapeutic decisions.
Rice lab develops smallest free-floating bubbles for medical imaging
Researchers at Rice University have developed ultrasmall gas-filled protein nanostructures that can penetrate tissue and reach immune cells, opening up new possibilities for ultrasound imaging and drug delivery. The breakthrough could revolutionize treatment for cancers and infectious diseases.
Ultrasound technology can be used to boost mindfulness, study finds
Researchers used low-intensity ultrasound to target and alter the default mode network of the brain, reducing connectivity and enhancing mindfulness. The technique, called transcranial-focused ultrasound (TFUS), can induce meaningful effects with just five minutes of stimulation.
Self-driving technology: improving safety through sound
A new partnership has developed a functional safety sensing platform based on 3D ultrasound, providing an additional layer of safety and reliability for autonomous vehicles. The technology complements existing systems and enables vehicles to detect their surroundings in real-time, even in extreme conditions.
American College of Radiology, American College of Emergency Physicians, and American Academy of Pediatrics offer guidance on use of advanced imaging in pediatric patients
The policy statement offers guidelines for institutions and medical professionals to weigh benefits and risks of imaging in emergency departments. It includes recommendations for deferring imaging in children transferred to pediatric referral centers and using shared decision-making strategies when multiple reasonable choices exist. Th...
Ultrasounds may not find this cancer in Black women
A common diagnostic strategy for endometrial cancer can fail to catch the disease in 4-11% of Black patients, according to a new study. Tissue biopsies are recommended instead of transvaginal ultrasound for Black women with concerning symptoms.
New study shows medication abortion without ultrasound to be safe
A new study by UC San Francisco's ANSIRH program found that patients who received care remotely for medication abortion had similar outcomes to those who got ultrasounds and in-person care. The researchers analyzed the experiences of over 500 patients and found a high success rate for the
Comparison of no-test telehealth and in-person medication abortion
A prospective study found that medication abortion via no-test telehealth and mailing of medications was comparable in effectiveness to in-person care with ultrasonography. The research also revealed low adverse event rates across all groups.
Ultrasound beam triggers ‘nanodroplets' to deliver drugs at exactly the right spot
Researchers have developed a method to deliver drugs to specific areas of the body using ultrasound waves, triggering drug release from stable nanocarriers. The approach is made both safe and efficient for the first time, paving the way for clinical trials.
New technology allows researchers to precisely, flexibly modulate brain
A new technology combining holographic acoustic devices with genetic engineering allows precise targeting of affected neurons in the brain, potentially treating neurodegenerative diseases. The technique, AhSonogenetics, uses a noninvasive wearable ultrasound device to alter genetically selected neurons in mice, alleviating Parkinson's-...
Breakthrough approach enables bidirectional BCI functionality
Researchers at Carnegie Mellon University have successfully integrated focused ultrasound stimulation into noninvasive BCIs, significantly boosting signal quality and enabling bidirectional brain-computer interfaces. The technology allows individuals to control a cursor or robotic arm using only their thoughts.
What waves know about their surroundings
Researchers at TU Wien have developed a theory to extract information from waves, allowing for precise measurements of objects in space. The theory reveals that the information content of a wave depends on its interaction with the object's properties, enabling customised waves to be generated for optimal information transfer.
USC researchers pioneer new brain imaging technique through clear “window” in patient’s skull
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.
Systemic thrombolysis of acute portal venous system thrombosis in patients with liver cirrhosis: a pilot study
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.
The role of three-dimensional power doppler for detecting ovarian cancer in adnexal masses
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.
Tiger beetles fight off bat attacks with ultrasonic mimicry
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.
Catch and release can give sea turtles the bends #ASA186
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.
Intense ultrasound extracts genetic info for less invasive cancer biopsies #ASA186
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.
Metalens expands Its reach from light to sound
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.
Multisite review shows serious adverse events occur frequently in outpatient care
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.
Competition from “skinny label” generics saved Medicare billions
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.
Advancing high-resolution ultrasound imaging with deep learning
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.
New consensus statement aims to improve endometriosis evaluation
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.
Amphibians use scream inaudible to humans for self-defense against predators, study suggests
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.
PolyU researchers invent non-invasive diagnostic device Smart-CKD for advancing clinical management of chronic kidney disease
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.
Real-time reconstruction of HIFU focal temperature field based on deep learning
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.
AI can now detect COVID-19 in lung ultrasound images
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.
New ultrasound technology may revolutionize respiratory disease diagnoses
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.
Would the highly sensitive transparent ultrasound transducer revolutionize biomedical imaging technology?
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.
Doctors can now watch spinal cord activity during surgery
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.
Shape-shifting ultrasound stickers detect post-surgical complications
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.
Weight loss and diabetes management drug linked to increased residual gastric content before anesthesia
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.
Revolutionary brain stimulation technique shows promise for treating brain disorders
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 non-invasive option to quickly reduce blood pressure and activate blood gas exchange
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.
Additional study shows promise for low-intensity ultrasound as a non-invasive approach to alleviate pain
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.