Articles tagged with Magnetic Resonance Imaging
A study found that high blood adenosine levels at 15 days of life correlated with white matter lesions and brain injury in very low birth weight premature infants. Adenosine may play a role in oligodendrocyte maturation and neuronal development, suggesting its potential as a biomarker for complications of prematurity.
Researchers are developing a novel MRI nanotechnology that targets specific markers in solid tumours, including high-grade brain cancers. The new imaging technology has shown promising preclinical results and is set to be tested in a first-in-human clinical trial.
Researchers suggest a novel neuroimaging technique can unveil Alzheimer's disease secrets and predict symptom risk. The 'neuromelanin-sensitive MRI' method provides insights into the brain's noradrenergic system, linked to aggressive behavior and cognitive decline.
A study published in Journal of Psychiatric Research found a significant biological difference between psychopaths and non-psychopaths, with psychopaths having a larger striatum region in the brain. This finding is linked to increased need for stimulation, impulsive behaviors, and higher likelihood of violent behavior.
Researchers at the University of Tsukuba developed a portable MRI system to identify wrist cartilage damage among athletes, providing a convenient means of early detection and treatment. The system enables quick screening at remote locations, eliminating the need for hospital visits.
A new study found that extended space flight increases perivascular spaces in the brains of first-time astronauts, but not those who previously served in space. No neurological deficits were detected despite the changes.
Researchers at the University of Missouri-Columbia have developed a novel approach to reprogramming cardiac implantable devices during MRI scans remotely. This technology has shown safe and effective results, saving time and money by eliminating the need for device representatives or on-site personnel.
A new study published in the European Heart Journal shows that MRI is superior to echocardiography for diagnosing heart failure and predicting patient outcomes. The research found that MRI can accurately measure left ventricular filling pressure, leading to improved diagnosis and reduced need for invasive assessments.
The ARRS annual meeting provides an updated primer on imaging ballistic injuries, which helps guide radiologists' interpretation. This includes understanding mechanisms of ballistic trauma and injury patterns to aid in diagnosis and treatment.
Dr. Gary J. Whitman, MD of the University of Texas MD Anderson Cancer Center, has been appointed as the 122nd President of the American Roentgen Ray Society (ARRS). He succeeds Jonathan Kruskal, MD, PhD, and will serve for the next year.
A new study using quantitative MRI (qMRI) found differences in brain structure among adolescents born extremely preterm, which may help predict atypical development. The study collected data from 368 adolescents and compared those with typical vs. atypical development, highlighting potential for qMRI to improve outcomes.
Research from Weill Cornell Medicine found that less prostate cancer screening has reduced overdiagnosis, but increased incidence of high-grade and metastatic disease. The study analyzed over 438,000 men with newly diagnosed prostate cancer between 2010 and 2018.
Portable MRI machines detected ischemic strokes with 90% accuracy, enabling quick treatment decisions in remote locations. This technology helps clinicians differentiate between clotting and bleeding strokes, making critical treatment choices in time-sensitive situations.
Scientists have identified magic-angle twisted bilayer graphene as a promising material for high-temperature superconductivity. Researchers found that nematic order in MATBG originates from the interference between fluctuations of a novel degree-of-freedom combining valley and spin degrees.
Researchers have identified a biomarker that indicates high risk of impending stroke post-subarachnoid hemorrhage, enabling early treatment initiation in comatose patients. Electrodiagnostic monitoring detects 'spreading depolarizations' caused by toxic by-products of blood breakdown, allowing clinicians to intervene before it's too late.
The BrainChart platform benchmarks brain development based on MRI data from over 100,000 individuals, creating a standardized chart like those for height and weight. The tool identifies previously unreported neurodevelopmental milestones and provides a common language to understand brain images from different sources.
A new study reveals that greater left-brain asymmetry is related to both better and average performance on reading ability tests, depending on the analysis method used. The findings support two opposing theories of language processing, suggesting a complex relationship between brain structure and speech sound processing.
A study of patients treated with edoxaban and dual antiplatelet therapy (DAPT) after TAVR found that edoxaban reduced subclinical leaflet thrombosis, but did not affect stroke risk. Rates of death, stroke, and cognitive decline were similar in both groups.
Researchers collected hundreds of cerebrospinal fluid samples from patients with Diffuse Midline Glioma, tracking changes in cell-free tumor DNA over time. The findings suggest that this method could provide data about tumors sooner than MRIs alone, allowing clinicians to address aggressive brain cancer more effectively.
The new center aims to develop quantitative imaging markers to reduce subjectivity in medical image diagnosis and improve consistency. Researchers will explore cutting-edge imaging modalities and extract effective image features from existing clinical imaging modalities to aid in cancer detection and treatment.
Researchers at CNIC discover that bone marrow activation is an early event in the development of atherosclerosis, leading to inflammation and plaque formation. The study identifies metabolic syndrome as a key trigger for this process.
Researchers warn of machine learning bias when data published for one task is used to train algorithms for a different one. This can lead to compromised integrity and 'overly optimistic' results in medical imaging applications.
Brainwide association studies need thousands of individuals to yield higher reproducibility, as smaller samples often uncover strong but spurious associations. Larger sample sizes lead to more likely reproductions of correlations, with effect sizes decreasing as the number of participants increases.
Researchers at Kaunas University of Technology improved an algorithm to detect Alzheimer's disease from MRI images, achieving over 98% accuracy. The new model uses a modified neural network and adapts to variations in data, such as differences in hospital equipment and patient positions.
A new study finds that the brain estimates controllability through competition between two parallel learning processes: the actor and the spectator. High levels of stress and anxiety impair people's sense of control, making them believe their actions don't matter.
A multicenter study found relatively high interobserver agreement for chronic pancreatitis findings in children using both CT and MRI. However, subjective findings like atrophy showed moderate agreement, emphasizing the need for standardized criteria.
A study of nearly 40,000 Medicare beneficiaries found racial disparities in the use of MRI among Black and white patients with new prostate cancer diagnoses. The study identified factors such as insurance coverage, socioeconomic status, and geographic location that contribute to these disparities.
A multicenter study validates the accuracy and reliability of NS-RADS for classifying and grading peripheral neuropathies, with high interrater agreement across different reader experience levels. The study shows promising results for routine practice, suggesting NS-RADS as a standardized guideline for reporting peripheral neuropathies.
Researchers developed a new imaging approach called VascuViz to visualize blood vessels at different spatial scales. The method enables detailed mathematical models and complementary images to clarify the role of blood flow in health and disease, advancing our understanding of tissues throughout the body.
Researchers developed a new deep learning algorithm that allows for real-time reconstruction of images combining optical and magnetic resonance imaging data. The algorithm, Z-Net, enables faster image generation and can be trained with simulated data, improving breast cancer detection.
Researchers at MUSC and University of Florida successfully visualize the complete human brain lymphatic system in living humans using a new non-invasive MRI technique. This breakthrough enhances our understanding of brain function and may provide insights into neurodegenerative diseases such as Alzheimer's.
Researchers developed a deep learning framework that can accurately flag abnormalities in routine head MRI scans, prioritizing resources for critical cases. The model reduced wait times for reports from 28 days to 14 days and from 9 days to 5 days, enabling real-time applications.
Annual MRI screenings starting at ages 30-35 may reduce breast-cancer mortality by more than 50% among women who carry certain genetic changes in three genes. The predictions involve pathogenic variants in ATM, CHEK2 and PALB2 genes – which collectively are as prevalent as the much-reported BRCA1/2 gene mutations.
The American Roentgen Ray Society recognizes Drs. Nguyen, Beheshtian, Harfouch, and Hashiba for their outstanding research and education contributions to the field of radiology. The awards honor the candidates' scientific merit and potential impact on imaging and allied sciences research.
A new wearable magnetic metamaterial helmet can create better brain scans by boosting MRI performance. It fits over a person's head during a brain scan, creating crisper images that can be captured at twice the normal speed.
The American Roentgen Ray Society has awarded two 2022 ARRS Scholarships to Sean Woolen and Bradley Allen, providing a total of $180,000 in funding for their radiological research projects. The scholarships aim to advance emerging scholars and prepare them for leadership positions.
Researchers discovered that toxic goiter causes shrinkage in central brain regions, such as the hippocampus and amygdala, which can lead to mental symptoms. The study provides key insights for patients with Graves' disease, a common form of hyperthyroidism.
HKU Electrical and Electronic Engineering researchers have successfully developed a new magnetic resonance imaging (MRI) technology that can operate from a standard AC wall power outlet, removing the need for radiofrequency shielding. The ultralow field (ULF) 0.055 Tesla brain MRI scanner is estimated to be only a fraction of the cost ...
Researchers at Johns Hopkins Medicine found that certain stem cells have built-in tracers made of sugars that can track their movement in living tissues. The discovery could streamline and advance restorative research for diseases of the brain.
Studies using magnetic resonance imaging found a correlation between decreased blood flow in specific brain areas and tinnitus severity. Researchers at the University of Illinois Urbana-Champaign explored these links to better understand the causes of tinnitus.
Scientists at University College London have developed a novel cancer therapy using magnetic seeds guided by an MRI scanner to heat and destroy tumours. The therapy, called MINIMA, has the potential to precisely treat hard-to-reach cancers with minimal side effects.
Dr. Edward Y. Lee, MD, MPH, receives the highest distinction from North America's first radiological society for his contributions to pediatric thoracic imaging and education. The ARRS Gold Medal honors his tireless efforts to advance radiology globally.
A novel blood test, Stockholm3, in combination with MRI reduces overdiagnosis of low-risk cancers by 60% and unnecessary biopsies by 9%. This cost-effective approach is recommended for Sweden's organized prostate cancer testing (OPT) pilot projects.
Boyce's research aims to develop MRI techniques to characterize the interior of flow systems in 3D, leading to revolutionized technologies in sustainable mining and hydrogen-powered vehicles. He plans to use visualizations to inspire middle- and high-school students from Harlem and the Bronx to pursue STEM studies.
Samuel Galgano and Pankaj Gupta have been named the 2022 Melvin M. Figley Fellow in Radiology Journalism and the 2022 Lee F. Rogers International Fellow in Radiology Journalism, respectively. They will attend the 2022 ARRS Annual Meeting and participate in the Editor’s Forum.
A UCLA-led study found that aducanumab's ancillary care services, such as MRIs and neurologist visits, account for nearly 20% of total Medicare costs. The estimated annual spending on the drug could increase Medicare premiums.
A prospective observational study found that preoperative shear wave elastography (SWE) can predict successful rotator cuff repair. SWE-derived elasticity was higher in patients with insufficient repair, and the elasticity ratio independently predicted insufficient repair.
A new MRI technique has been developed to detect changes in multiple sclerosis (MS) at an earlier stage. This technique, proton MR spectroscopy with a 7-tesla magnet, can visualize brain changes that appear normal on conventional MRI scans.
Regular aerobic exercise has been shown to strengthen brain networks between spared regions, improve grey-matter volume, and enhance movement control in individuals with Parkinson's disease. The study published in Annals of Neurology suggests that exercise can stimulate compensatory capacity in the brain, leading to reduced symptoms.
A green Mediterranean diet rich in polyphenols and low in red and processed meat may slow age-related brain atrophy. The DIRECT PLUS 18-month trial found significant attenuation of brain atrophy among participants who adhered to both diets.
A retrospective study found that whole-spine MRI commonly demonstrates isolated thoracolumbar injuries in children with suspected abusive head trauma. The study included 256 children who underwent whole-spine MRI as part of their evaluation, revealing that 23% of examinations showed injuries localized to the thoracolumbar spine.
New research published in JNeurosci reveals that impaired cognition can be part of normal aging, rather than an early sign of Alzheimer's. Cognitively frail adults showed brain structure and activity similar to healthy controls, suggesting lifestyle factors like physical activity and education may play a role.
Researchers at Beckman Institute have defined a mathematical framework for identifying hallucinations in biomedical images. This framework will enable researchers and radiologists to quantitatively assess their image reconstruction methods and prevent patient misdiagnosis.
Automated brain volumetry in memory-impaired patients shows significant differences and systematic biases between conventional and ultrafast 3D T1-weighted MRI sequences. Most regions demonstrated substantial agreement but also significantly different mean values and consistent biases.
A study by Indiana University School of Medicine researchers suggests that reperfusion therapy may not be as effective in halting muscle damage during heart attacks as previously thought. The team's findings indicate that internal bleeding within the heart muscle can continue to cause damage even after the blocked coronary artery is op...
A recent study published by Queen Mary University of London has found that certain risk factors for heart disease are linked to changes in the structure and appearance of the heart. The research analyzed images from over 30,000 people's heart MRI scans using a new imaging toolkit called radiomics.
A recent study published in the Journal of the American College of Cardiology found that fetal MRI can detect at least one other abnormality in almost 57% of fetuses with heart defects. Additionally, approximately a quarter of all fetuses had structural brain abnormalities, regardless of the severity of the heart defect.
Lesions in white matter carry messages between neurons, damaging it and leading to cognitive deficits. Researchers found that strain on ventricular walls explains where lesions develop in the aging brain.
Researchers at Nagoya University developed a scalable method to produce high-temperature superconductors with artificial pinning centers, improving their properties. The technique, known as grain boundary engineering, can help develop stronger, inexpensive, and high operating temperature superconductors.
A team of researchers at Duke University found that surprise can disrupt the stability of patterns in the hippocampus, leading to more false memories. This study has implications for understanding learning and memory, as well as how people recall events and faces.