Articles tagged with Magnetic Resonance Imaging
Researchers have developed a new imaging technique to track Multiple Sclerosis (MS) progression from its earliest stages. The study uses QS Magnetic Resonance Imaging (MRI) to measure damage in specific brain areas, revealing that even at early disease stages, patients already show significant damage.
A new microfluidic chip produced by NIST can detect the presence of molecules in a complex mixture using polarized xenon gas. The device has been demonstrated to detect weak signals corresponding to fewer than 1 trillion polarized xenon atoms, rivaling low-field optical magnetometry.
A recent study by Northwell Health demonstrates that magnetic resonance imaging (MRI) guided biopsies can detect prostate cancer more accurately, with a detection rate twice as high as previous data. The new targeted approach uses MRI and transrectal ultrasound fusion to identify clinically significant prostate cancer.
A new method developed by Johns Hopkins researchers uses MRI scans to measure damage to the blood-brain barrier, allowing for more precise administration of intravenous tPA. The technique shows promise in predicting which stroke patients will benefit from treatment and which may suffer bleeding complications.
Researchers have developed a new imaging technology using SapC-DOPS to visualize brain tumors, which could lead to improved treatment options for patients. The technique delivers bio-fluorescence agents and contrast agents directly to tumors, providing valuable information for diagnosis and treatment decisions.
Researchers have modeled water properties at the nanoscale, revealing surprising characteristics that can benefit various technological applications. The study's findings may lead to advancements in biomedical imaging, particularly Magnetic Resonance Imaging (MRI), by optimizing contrast agents and improving image quality.
Researchers have identified a new and accurate test for Parkinson's disease using 3T MRI scanning technology, known as the 'swallow tail' appearance of the healthy nigrosome. This sign is absent in Parkinson's disease, making it a potential diagnostic tool for clinicians.
Scientists at Harvard University have created a magnetic resonance imaging (MRI) system that can produce nano-scale images, potentially allowing researchers to peer into the atomic structure of individual molecules. The system uses a miniaturized magnet and quantum computing technology to achieve high spatial resolution.
Researchers have made a groundbreaking discovery using MRI scans to identify brown adipose tissue in adults, a major step towards developing new weight loss treatments. The study's findings could lead to the creation of safe and effective therapies that activate brown fat to promote energy expenditure.
Researchers used MRI to identify regional white matter damage in brain regions associated with chronic dizziness and vestibulopathy after concussion. The study suggests that MRI can speed the onset of effective treatments for concussion patients.
Researchers discovered reduced dimensions of key cerebral veins after deep brain stimulation in Parkinson's disease patients. This finding suggests that bilateral subthalamic nucleus stimulation affects cerebral venous blood flow.
Researchers found that people with inner-ear disturbances exhibit distinct eye movements when exposed to MRI magnets, potentially allowing for diagnosis and treatment. Zebrafish also showed dramatic reactions to strong magnetic fields, offering a model for studying genetic factors behind balance disorders.
A new study found that 12% of doctor visits for headaches result in unnecessary brain scans, costing around $1 billion annually. The researchers suggest better public education and insurance plan designs could reduce unnecessary use and spending on scans.
Researchers developed an MRI that can visualize bone and soft tissue despite the presence of metal screws, allowing for earlier detection of osteonecrosis. The study found that 80% of patients had decreased blood flow to the injured area and osteonecrosis in the femoral head.
Researchers used ultra-high-field MRI to identify abnormalities in the substantia nigra, a key region affected by Parkinson's disease. The study showed promising results for early detection and classification of the condition, with high sensitivity and specificity rates.
A new study found that carotid artery MRI can accurately predict future cardiovascular events, including strokes and heart attacks, in people without a history of cardiovascular disease. The presence of a lipid core in the internal carotid artery was significantly associated with an increased risk of subsequent events.
A study found that people with both parents having Alzheimer's disease showed more severe brain abnormalities, including increased brain plaques and reduced brain volume. The research suggests a possible genetic link to the development of Alzheimer's disease.
Scientists at the University of Nottingham are developing non-invasive measurements using magnetic resonance imaging (MRI) to assess blood flow and oxygenation in the human kidney. The goal is to improve monitoring and treatment for chronic kidney disease, which can be caused by health conditions like diabetes and high blood pressure.
Researchers at Case Western Reserve University have developed a multifunctional nanoparticle that enables MRI to pinpoint blood vessel plaques caused by atherosclerosis. The technology is a step toward creating a non-invasive method of identifying vulnerable plaques in time for treatment.
Researchers developed a non-invasive method to measure left atrial wall fibrosis using delayed enhancement MRI, which is associated with increased risk of recurrent rhythm disorder after treatment. The study suggests that this measure may help identify patients who are more likely to benefit from ablation therapy.
Studies highlight the impact of clinical education on imaging examinations, including increased effectiveness and improved guideline adherence. Trends in diagnostic CT scans also reveal differential changes by age group and body region.
A study found that assessing brain structure and function can predict future working memory performance in healthy children and adolescents, suggesting a possible early warning system for developmental challenges.
A team of Oxford University researchers has identified a unique brain area in the ventrolateral frontal cortex that is involved in advanced planning and decision-making processes. This area, which does not have an equivalent in monkeys, is also linked to language processing and 'multi-tasking'.
Elena Conti wins the prize for her work on understanding the mechanisms governing RNA quality, transport, and degradation, while Denis Le Bihan receives it for his innovative brain imaging technique that has revolutionized stroke diagnosis and treatment. Both researchers will use the prize money to further their research.
Researchers discovered that brain regions synchronize their activity to make it possible for people to pay attention, with the process likened to tuning multiple walkie-talkies to the same frequency. The findings have implications for understanding attention deficits in brain injuries or strokes.
A new MRI method using CEST technology measures creatine levels in the heart, providing higher resolution than traditional methods and potentially spotting heart problems earlier. This technique could lead to improved clinical decision-making and earlier detection of heart disorders.
Researchers at University of Nottingham develop novel MRI method for diagnosing and treating Irritable Bowel Syndrome (IBS), allowing continuous bowel imaging with no risk to patients. The technique enables measurement of colon volumes, transit times, and effects of FODMAPs on gut health.
Researchers at UC Davis have developed a new MRI technique called Active-MRI that captures the movement of the wrist in real-time. This allows for more accurate diagnosis of conditions such as wrist instability, which can be misaligned and cause chronic pain and osteoarthritis.
A new study has confirmed an association between a gadolinium-based MRI contrast agent and abnormal brain tissue signals. The research suggests that the toxic component of the contrast agent may remain in the body for extended periods.
Researchers have developed a powder to enhance NMR signals, enabling faster and more accurate structure determination by NMR and early cancer diagnosis by MRI. This innovation opens new perspectives for medical imaging and potential applications in human diagnosis.
A new study by Johns Hopkins researchers found that decreased energy metabolism in heart cells is a significant independent risk factor for worsening heart failure. The study used magnetic resonance imaging to measure energy metabolism and found it was significantly lower in patients whose conditions worsened.
MIT researchers have developed an algorithm that can perform Fourier transforms using close to the theoretical minimum number of samples. This could significantly reduce the time it takes for medical devices like MRI machines to scan patients, or allow astronomers to take more detailed images of the universe.
The National Institute of Standards and Technology (NIST) has developed prototype calibration tools for ultra-low field magnetic resonance imaging (ULF-MRI), a technique that provides new contrast mechanisms and practical advantages. The ULF-MRI phantoms are designed to allow direct comparison of performance between ULF-MRI and clinica...
A study using cardiac MRI found that energy drink consumption increased peak strain and systolic strain rates in the left ventricle of the heart. The researchers advise caution for children and individuals with heart disease, highlighting the need for further studies on long-term effects.
A study using MRI technology found that veterans with mild traumatic brain injury (MTBI) caused by blasts have long-term brain differences, including changes in white matter structure. This suggests a potential link between blast exposure and ongoing cognitive symptoms in veterans.
A study presented at the Radiological Society of North America annual meeting found that ultrasound-guided PRP therapy improves functionality by 80% and pain by 75% in athletes with Achilles and patellar tendinosis. The therapy also normalizes MRI signal intensity in 90% of patients.
A study using MR spectroscopy found that preterm infants' brains develop differently than full-term infants, with a disruption in the timing and synchronization of white and gray matter maturation. This false start in brain development may contribute to long-term problems such as autism and ADHD.
A large national study found that breast MRI screenings nearly tripled from 2005 to 2009, with a notable increase in high-risk women. Despite this progress, the study highlights areas for improvement in the use of breast MRI for risk-based screening.
Two studies on breast MRI usage found a significant increase in its use for diagnostic evaluations and screenings, particularly among high-risk women. The studies also revealed disparities in the use of breast MRI, with some groups receiving more frequent screening than others.
A new study found that people's decisions on recognizing faces are dependent on the context, not just repeated exposure. The brain's fusiform face area learns familiar information about faces, while the superior temporal sulcus influences recognition reports based on social context.
A Polish study has developed a new imaging modality using Magnetic Resonance Imaging-Ultrasound (MRIUS) to guide prostate biopsies, yielding higher sensitivity rates compared to traditional TRUS biopsies. The technology, which fuses MRI with TRUS images, allows for real-time guidance of targeted biopsies in office settings.
Researchers at Case Western Reserve University are working on an MRI-guided robotic heart catheter to accurately navigate and target tissues in the heart. The technology aims to reduce complications associated with current treatments for arterial fibrillation, allowing doctors to more precisely ablate the affected tissue and restore no...
Researchers at Michigan State University developed a simple 'noun-verb' test to measure creativity, finding that those who gave creative answers in the test were indeed the most creative as measured by other methods. The test could help create better educational and training programs to foster creativity.
Researchers correctly identified the brains of mathematician Carl Friedrich Gauss and medical scholar Conrad Heinrich Fuchs using MRI scans, revealing they were switched over 150 years ago. The discovery highlights the importance of historic collections for modern-day research.
Researchers at UCLA's College of Letters and Science have employed magnetic resonance imaging (MRI) to better measure the temperature of gases inside a catalytic reactor. This non-invasive method maps gas temperatures in real-time, enabling engineers and chemists to design better lab-on-a-chip devices and optimize reactor conditions.
A new study reveals that corporate bosses selectively intervene in subsidiary decisions to prevent competitive spillovers and maintain a 'go along to get along' cooperative attitude. This approach restricts growth in certain businesses within the corporation, ultimately benefiting rivals at the expense of consumers.
Researchers have developed a new hyperpolarization technique for MRI scans using naturally occurring pyruvic acid, reducing the need for potentially toxic substances. This breakthrough improves imaging quality and diagnosis while minimizing health risks.
Group Health Research Institute received two PCORI awards to study the effectiveness of breast MRI compared to mammography for breast cancer surveillance. The institute also provides assistance to a new national data network, enhancing the nation's ability to conduct patient-centered comparative effectiveness research.
A new MRI technique has been developed to detect Fabry disease, a genetic condition that affects the heart, brain, and nerves. The T1 mapping test can identify microscopic changes in the heart muscle structure that are not visible on regular images, allowing for early detection and treatment.
The American College of Radiology has developed a safety checklist for pediatric digital radiography, aiming to standardize work processes and reduce reliance on memory. The checklist is designed to decrease the chance of medical errors and improve patient care in pediatric radiography.
Researchers at Brigham Young University have developed a new breast cancer screening technique using sodium MRI that produces five-times more accurate images than previous methods. The device aims to reduce false positives and unnecessary biopsies by scanning for sodium levels in the breast.
A new MRI technique has been developed with a spatial resolution of roughly 10 nanometers, significantly improving sensitivity. The team used a novel protocol and nanoscale metal constriction to overcome obstacles in applying classic pulsed magnetic resonance techniques.
Researchers at LSU will utilize the SuperMIC cluster for various projects, including discovery of new drugs and modeling coastal processes. The project aims to train the next generation of researchers in high-performance computing and prepare students for the future.
A study published in Radiology found that patients referred by physicians with financial interest in imaging equipment were more likely to receive negative findings on knee MRI exams. This suggests that financial incentives may drive overuse of high-tech imaging, contributing to escalating medical costs.
Scientists at Virginia Tech Carilion Research Institute have reported experimental evidence supporting the top-down theory of fullerene formation. The discovery could lead to better medical imaging contrast agents and cancer treatment methods, as fullerenes with trapped metal atoms show low side-effect risks.
Researchers link brain atrophy to cognitive decline in Type 2 diabetes, challenging previous assumptions. Brain atrophy is found to be the primary cause of cognitive impairment associated with T2DM, exceeding cerebrovascular lesions.
A new study published in Radiology found that whole-body MRI can accurately predict the risk of heart attack and stroke in diabetic patients. The study revealed that patients with detectable vascular changes on whole-body MRI faced a cumulative risk rate of 20% at three years, increasing to 35% at six years.
Researchers discovered that degeneration of the fornix, a structure carrying messages to and from the hippocampus, is a key predictor of future cognitive decline. Fornix variables were found to precede clinically relevant deterioration of cognitive function in cognitively normal elderly individuals.
Rice University scientists have developed bismuth-filled nanotubes as a contrast agent for CT scans, producing brighter images than common iodine-based agents. The nanotube capsules are small enough to diffuse into cells and aggregate to produce high-contrast images.
Studies find radiation therapy for DCIS does not increase cardiovascular disease risk, while MRI scans may be unnecessary. Additionally, most women have inaccurate perceptions of their personal breast cancer risk, sparking the need for better communication between patients and doctors.