Articles tagged with Magnetic Resonance Imaging
Researchers found an inverse association between muscle fat and physical activity level, as well as a positive link with body mass index. Ultrasound technology proved advantageous for assessing muscle composition, particularly for individuals with disabilities or certain medical conditions.
Groundbreaking research in 13 radiology subspecialities presented during the ARRS 2016 Annual Meeting. Notable findings include improved prostate cancer detection and grading using restriction spectrum imaging, reduced unnecessary biopsies via novel mammographic algorithm, and faster knee MRI acquisition with accelerated SPACE.
A new study published at The International Liver Congress 2016 found that the diabetes drug sitagliptin was no more effective than placebo in reducing non-alcoholic fatty liver disease. However, researchers demonstrated that non-invasive imaging techniques based on MRI were useful for measuring changes in liver fat and fibrosis.
Researchers used SPECT-MRI fusion to assess sentinel lymph nodes in early-stage cervical cancer patients, finding that it could identify metastases with high accuracy. This non-invasive approach may reduce the need for surgical removal of lymph nodes and improve patient outcomes.
A team of doctors analyzed brain scans of 23 babies born with microcephaly associated with Zika, revealing severe brain damage and abnormalities. The study found extremely severe brain calcification, malformations of cortical development, and delayed myelination in most cases.
A recent study by the American Academy of Neurology found that over 40% of retired NFL players showed signs of traumatic brain injury based on sensitive MRI scans. The study also revealed a significant correlation between longer NFL careers and increased risk of TBI.
Researchers from MedInsight Research Institute analyze studies detailing gadolinium toxicity mechanisms, contradicting the longstanding belief that patients with normal kidney function are not at risk. The study calls for FDA action to address the gap in scientific knowledge about treatment for gadolinium toxicity.
Researchers found abnormalities in white matter tracts of patients with insomnia, affecting sleep regulation and cognitive function. The thalamus, which regulates consciousness and sleep, was particularly affected.
A new study published in Radiology suggests that diffusion tensor imaging (DTI) can predict long-term effects of mild traumatic brain injury (MTBI) in veterans. The study found associations between initial post-deployment DTI measurements and neurobehavioral symptoms, timing of injury, and subsequent functional outcomes.
Duke University researchers have discovered a new class of molecular tags that can enhance MRI signals by 10,000-fold, generating detectable signals that last over an hour. This breakthrough paves the way for widespread use of magnetic resonance imaging to monitor metabolic processes in real-time.
A recent study found that ultrasound-estimated fat content in muscles is inversely associated with physical activity level and positively associated with body mass index. This non-invasive test could be especially useful for individuals with disabilities or certain medical conditions that make other imaging techniques ineffective.
Researchers at NIST have developed a widely useful standard for breast cancer MRI, mimicking human tissue to test imaging systems. The phantom supports quantitative MRI and is used in clinical trials, enabling accurate images for diagnosis, staging, and treatment monitoring.
Researchers from the University of Surrey developed a breeding strategy to reduce the risk of Chiari malformation in toy dogs. By cross-breeding Brussels Griffons with Australian Terriers, they created puppies with reduced symptoms of the debilitating condition, which affects 1 in 1280 humans.
Researchers used MRI to study the effects of PKU on gray matter in the brain. They found evidence of abnormalities in individuals with early-treated PKU, particularly in posterior regions. The study's findings highlight the importance of maintaining dietary treatment throughout life to prevent irreversible damage.
A new study using MRI to examine pregnant women with short cervixes found that high cervical tissue mobility is associated with impending preterm birth. The researchers plan larger trials to confirm the role of this imaging biomarker in predicting preterm birth.
Researchers developed a new imaging technique that uses tagged peptides to track gelatinase activity in stroke patients. This method may lead to better understanding of how to treat strokes and prevent brain damage. The study was published in the Journal of Cerebral Blood Flow and Metabolism.
Researchers at University of California, San Diego have developed a new cell labeling probe using fluorine-19, which can be detected by magnetic resonance imaging (MRI), allowing for the visualization of cell behavior. The addition of iron enhances the MRI signal, making it possible to track cells quickly and clearly.
Researchers have developed a synthetic nanoparticle that can simultaneously detect and treat atherosclerotic plaques, offering new hope for preventing deadly heart attacks and strokes. The nanoparticles use MRI to visualize plaque buildup and trigger a therapeutic response.
Scientists at the University of Nottingham have developed a process to create hyperpolarized krypton gas for MRI scanning of the lungs, offering a clearer picture of lung disease. This technology uses clean energy combustion to retain the hyperpolarized state of krypton during preparation.
A new study using MRI found that adult earthquake survivors with post-traumatic stress disorder (PTSD) had greater cortical thickness in certain brain regions and reduced volume in others compared to healthy survivors. Cortical thickness was positively correlated with PTSD severity, particularly in the left precuneus region.
The new CVIA journal published its second issue with a special focus on Electrophysiology. Key findings include strategies for preventing stroke in high-risk atrial fibrillation patients, catheter ablation as a cornerstone in AF management, and the role of multimodality imaging in substrate characterization.
Researchers from Case Western Reserve University have developed a new image analytics test that can reliably distinguish between patients who need only hormonal treatment and those who also need chemotherapy. The test uses MRI data to identify molecular changes in tissues, which can be analyzed quickly and cost-effectively.
Researchers used a 7T MRI scanner to visualize myocardial injury in patients with hypertrophic cardiomyopathy, detecting minute clefts that were previously impossible to see. The technology offers high-resolution imaging and could lead to more accurate diagnoses of heart diseases.
Researchers created a combined MRI and ultramicroscopy toolkit to study vessel growth in glioma models, providing better understanding of underlying mechanisms and potential novel targets for future drug development. The technique helped assess the effects of existing anti-vascular endothelial growth factor treatments on tumour growth.
Researchers developed a mathematical tool to assess brain damage from concussions and predict migraine headaches. Using information theory, they found that Shannon entropy analysis performed better than mean FA as a diagnostic test.
Researchers at University of Nottingham have developed a new MRI technique to distinguish between multiple sclerosis (MS) lesions and other brain white spots. The study shows that this clinical MRI scan can accurately diagnose MS in a significant minority of cases, potentially leading to quicker and more reliable diagnosis.
Researchers have linked schizophrenia symptoms to specific brain features using magnetic resonance imaging (MRI). The study identified distinctive subgroups among patients with different symptoms. Analyzing the brain's anatomy may help develop more precise treatments for individual patients.
Studies using advanced imaging techniques reveal changes in brain and spinal cord structure and function associated with diabetic peripheral neuropathy. Researchers believe that CNS factors contribute to the development of painful symptoms, providing new insights into the nature of DPN.
UNSW researchers have identified a link between the physical structure of brains and spontaneous patterns of brain function at rest. The study uses harmonic waves to explain how brain shape influences resting brain activity, which could lead to new diagnosis techniques for disorders of consciousness.
Researchers at the University of Southampton found that bone marrow lesions on MRI scans can predict more rapid progression of osteoarthritis. Individuals with BMLs had a loss rate of 0.10mm per year faster than those without, potentially leading to earlier need for joint replacement.
The technology uses metamaterials to improve the signal-to-noise ratio, resulting in higher-resolution images and faster scanning times. This innovation has the potential to revolutionize medical diagnostics, particularly in cancer detection and tissue analysis.
A study published in Medical Care found that patients with high-deductible insurance plans used fewer imaging tests and had lower costs for diagnostic imaging. However, the study could not determine whether this was due to high- or low-value utilization, raising concerns about potential drawbacks of high-deductible plans.
Patients with high-deductible health plans use 7.5% fewer diagnostic tests like MRI, X-rays, and CT scans than those without such plans. High-deductible plans may discourage test use due to lack of informed decision-making by patients.
A systematic review of breast density studies found unreliable determinations and a significant risk of re-categorization. Supplemental diagnostic screenings for women with dense breasts may find additional cancers but also greatly increase false positive results, highlighting the need for more research on evaluation methods.
The study visualizes the human brain's neural anatomy, revealing previously unidentified connections between the brainstem and forebrain. These connections support the concept of an integrated central homeostatic network in the brain.
A new study using MRI scans found that 52% of active duty military personnel with blast-related mild traumatic brain injury (MTBI) have white matter T2 hyperintensities, also known as 'brain scars'. Pituitary abnormalities were identified in almost a third of MTBI patients.
Researchers at University of Oxford have developed a new technique that uses T1 mapping to create pixel-by-pixel maps of the heart without injections, improving detail and reducing subjectivity. This technology has the potential to help diagnose heart conditions in patients with severe kidney failure.
A new imaging test has been developed to identify more dangerous tumours before they spread, and tailor treatment accordingly. The test uses oxygen-enhanced MRI technology to map areas of oxygen deprivation within tumours.
Researchers at Boston University School of Medicine used non-invasive Magnetic Resonance Imaging (MRI) to detect vulnerable atherosclerosis plaques, which can lead to heart attacks and strokes. The study showed that MRI can discriminate between high-risk and stable plaques at early stages.
A new study using MRI reveals that elite free divers experience cardiovascular changes during apnea, including a decrease in heart rate and blood pressure. Despite these changes, the divers' heart function recovers quickly upon breathing again.
A study found that concussed football players had reduced cerebral blood flow even after clinical recovery, suggesting a role for MRI in determining when to allow them to return to competition. This technology may provide a more objective measurement of recovery and help prevent second injuries.
A study published at the Radiological Society of North America meeting found that ultra-distance running causes significant degradation in knee and ankle cartilage, but also enables its regeneration. The researchers used a mobile MRI scanner to track 44 runners over 64 days, revealing no distance limit for joint cartilage damage.
A study published in Radiology found that MRI-detected multicentric cancers are larger and potentially more aggressive than index cancers detected by mammography, necessitating treatment changes. In 25% of cases, these multicentric cancers were over 1 centimeter in size.
A new study using 3-D MRI found that diabetic patients have a higher risk of stroke due to advanced vascular disease, with 23.3% having intraplaque hemorrhage in at least one carotid artery. The finding suggests that 3-D MRI could be useful in determining stroke risk among diabetics.
The study found that overall happiness is a combination of happy emotions and life satisfaction, linked to the precuneus region in the brain. Individuals with higher grey matter mass in this area tend to experience more intense happiness and find meaning in life.
Researchers at Brigham and Women's Hospital have developed a new approach to predict which tumors will be most responsive to therapeutic nanoparticles. They use an FDA-approved magnetic nanoparticle and MRI to identify tumors with high or low EPR, a physiological condition that allows nanoparticles to accumulate faster.
A Massachusetts General Hospital-developed system using diffusion MRI improved patient selection for endovascular treatment, leading to a greater percentage of screened patients receiving treatment. The system's precision resulted in similar outcomes to recent clinical trials and significantly increased the number of treated patients.
A new study analyzes 464 Twitter tweets related to MRI and finds that patients express anxiety about various aspects of the procedure, including diagnosis and treatment. The study highlights the potential use of social media platforms like Twitter to gather insights into patient experiences and improve medical care.
A study of nearly 3,000 adults found significant differences in how male and female hearts change over time. The research suggests that men's and women's hearts may develop age-related heart failure for different reasons, highlighting the need for gender-tailored treatments.
A new MRI study found that the main pumping chamber of the heart ages differently in men and women, with men's hearts becoming heavier and holding less blood. The study suggests that optimum treatment for heart failure may not be the same for women and men, highlighting the importance of personalized medicine.
Researchers have developed a method to use nanoscale diamonds to identify cancerous tumours before they become life-threatening. The technique involves attaching hyperpolarised diamonds to molecules targeting cancers, allowing for the tracking of these molecules' movement in the body.
Inserm researchers have developed a noninvasive brain imaging method using MRI that provides the same information as physical palpation, allowing for early diagnosis of brain tumors or Alzheimer's disease. The technique uses noise correlation to detect natural shear waves in the brain, enabling building images of the brain's elasticity.
Researchers at MIT are developing a computer system that uses genetic, demographic, and clinical data to predict the effects of neurodegenerative disease on brain anatomy. By combining MRI data with additional patient information, they found that predictions were improved by half in cases where changes were drastic.
A new MRI technique, DWIBS-MRM, has been shown to provide accurate results for breast cancer detection without the need for ionizing radiation or contrast agents. The technique achieved a high negative predictive value of 92% and may potentially reduce unnecessary biopsies.
Researchers have identified a potential new way to predict which patients with head and neck cancer may benefit most from chemotherapy. The use of dynamic contrast-enhanced MRI scans has shown that tumour blood flow can predict response to treatment, with patients having high blood flow more likely to respond.
A new imaging technique found damage to nerve tracts connecting different parts of the brain in people with high blood pressure, linked to difficulties in cognitive skills and emotional regulation. DTI provides a way to evaluate pre-symptomatic brain damage in people with high blood pressure.
Researchers at MIT and Boston Children's Hospital have developed a system that can take MRI scans of a patient's heart and convert them into a tangible, physical model. The models provide a more intuitive way for surgeons to assess individual patients' anatomical idiosyncrasies, improving surgical planning.
A study using MRI to evaluate 603 military service members with TBI found that cerebral microhemorrhages were more common among those imaged within three months post-injury. Early detection of microbleeding could provide important information regarding disease progression or recovery.
A highly detailed model of mouse brain connections may provide new insights into mental illnesses such as depression and schizophrenia. The study used diffusion MRI scans to create a 3D digital map of the brain's circuitry, exceeding previous resolution by 1,000 times.
A new study found that brain microstructure and tissue volumes in prematurely born children can predict their math skills and working memory at school age. Researchers used neonatal MRI to identify infants at risk of low academic achievement, suggesting early intervention could reduce long-term problems.