Articles tagged with Magnetic Resonance Imaging
Researchers discovered diamond dust's signal-enhancing properties, outperforming gadolinium. Diamond nanoparticles stay in blood vessels and shine brightly in MRI, without leaking into healthy tissue.
Radiologists are proposing actions to reduce their department's greenhouse gas emissions and become more resilient to the effects of climate change. They suggest implementing a coordinated approach, establishing sustainability teams, and optimizing scanner usage to reduce emissions by up to 33% for MRI and CT scans.
Researchers from SGH and NNI found side-to-side differences in the corticoreticular pathway of patients with AIS, which may lead to better diagnosis and treatment options. The study's findings suggest that scoliosis is fundamentally related to brain and spinal cord interactions.
A new AI-based video biomarker is associated with aortic stenosis development and progression, allowing for opportunistic risk stratification across various imaging modalities. The study's findings suggest potential applications on handheld devices for early detection and intervention.
In a preliminary report from an ongoing clinical trial, prostate cancer screenings using PSA, Kallikrein Panel, and MRI detected higher rates of cancer compared to no screening. The study found one additional high-grade cancer per 196 men and one low-grade cancer per 909 men were detected in the screened group.
Integrating magnetic resonance imaging (MRI) in prostate cancer screening pathways is associated with reduced unnecessary biopsies and overdiagnosis. MRI maintains clinically significant prostate cancer detection, reducing harm from overtreatment.
Researchers found that doctors can confidently skip 50% of biopsies by combining MRI-based prostate imaging reporting and data system scores with prostate-specific antigen density testing. The study suggests that this approach can decrease patient harm and healthcare costs associated with unnecessary biopsies.
A study published in International Journal of Cancer found that men with advanced degrees and higher incomes are more likely to receive comprehensive care for prostate cancer, including MRI scans and curative treatment. This leads to lower mortality rates from the disease compared to those with lower education and income.
Researchers discovered changes to blood vessels in the brain that can increase stroke and dementia risk are common in people with heart conditions. The study confirms heart disease as a main cause of these changes, highlighting the importance of imaging tests to guide safer treatment choices.
A team of researchers has developed the world's first 3D-printed brain phantom, which can be imaged using dMRI. The brain model is made up of microchannels that mimic nerve cells in the brain, allowing for more accurate analysis and research into neurodegenerative diseases.
Researchers developed a custom-built, low-cost mesoscope that can adapt to different neuroimaging experiments in live mice and rats. The system offers excellent spatial and temporal resolutions, achieved through its reversible tandem lens configuration, which enables flexible experimentation.
A study published by the University of Florida suggests a connection between elevated amyloid blood levels and subtle brain microstructural changes in individuals without dementia. Researchers used diffusion MRI to detect free-water in the brain, revealing associations with structural abnormalities even when PET scans were negative.
Researchers used MRI to investigate the effects of Phytophthora cactorum on strawberry plants, discovering elevated relaxation times and visible pathogen presence. The study suggests MRI can monitor plant health, investigate disease progression, and inform strategies for preventing plant diseases.
A UC Riverside-led study found that moderately anxious children from minoritized groups are hypervigilant to threats, exacerbating their general state of anxiety. The study used MRI scanners and involved preadolescent Latina girls from low-income families.
A new vest can map electric impulses of the heart in fine detail, detecting abnormalities from a potentially fatal heart disease much earlier. The study found that the vest identified electrical changes among 1 in 4 individuals with a gene mutation for whom no signs of disease were detected via standard tests.
A recent study conducted at the University of Zurich found that live performances stimulate a stronger emotional response in the brain compared to listening to recorded music. The researchers used magnetic resonance imaging to measure brain activity during both live and recorded music sessions, revealing a significant difference in amy...
A study co-led by Prof. Kelly Metcalfe finds risk-reducing mastectomies significantly reduce breast cancer risk and death probability in women with a BRCA1 or BRCA2 genetic variant. The procedure reduces the risk of breast cancer by 80% and decreases mortality to less than 1%.
Researchers found GV1001 decreases BACE and Aβ1-42 levels, reducing neurodegeneration and senescence in 3xTg-AD mice. It also increases survival, telomere length, and telomerase activity, contributing to improved lifespan.
Researchers have developed magnet-guided microrobots that can target and treat liver tumors using an MRI device. The robots are guided by a magnetic field and use gravity to navigate to the tumor, preserving healthy cells.
A novel imaging technique, low-dose positron emission mammography (PEM), shows promise in transforming breast cancer detection by providing high sensitivity and low false positive rates. PEM could potentially decrease healthcare costs and reduce unnecessary procedures for patients with dense breasts.
A machine-learning tool trained on brain MRI scans of over 2,000 people worldwide can accurately predict psychosis before it occurs. The tool achieved an accuracy rate of 85% in training and 73% in testing, suggesting its potential as a valuable aid for early diagnosis.
Researchers at ETH Zurich have developed a new magnetic resonance imaging (MRI) procedure that maps the condition of myelin sheaths in the central nervous system more accurately. This breakthrough technology has the potential to facilitate early MS diagnosis and monitoring, as well as the development of new drugs for the disease.
A team of researchers analyzed 61 symptomatic and 35 asymptomatic knees with discoid lateral meniscus surgery. They found that larger meniscus sizes were associated with increased knee pain and symptoms. The study's results have important implications for surgical treatment and preoperative imaging.
Researchers have found a connection between the brain and its tough protective covering, the dura mater, allowing waste fluid to leave the brain while exposing it to immune cells. This discovery has implications for neural-immune system responses and aging, potentially leading to new treatments for neurodegenerative diseases.
Researchers discuss recent advances in brain mapping, emphasizing the need to establish precise neuromodulation paradigms based on individual characteristics. Individualized brain mapping methods have evolved from manual labeling to staining techniques across multiple subjects.
A team of scientists from the Beckman Institute has received a $3 million grant to develop diagnostic tools and imaging agents for the early detection of Alzheimer's disease. They will use a combination of PET and MRI scans to target smaller beta-amyloid peptides and other signs of neuroinflammation and oxidative stress.
Researchers have identified regional biological signatures in invasive brain tumor margins of high-grade glioma, which could lead to improved diagnosis, prognosis, and treatment. Advanced MRI techniques may help distinguish between the genetic and molecular alterations, providing insights into resistance to treatment.
A new American Heart Association scientific statement emphasizes the need for increased awareness of cerebral venous thrombosis (CVT) to facilitate prompt medical treatment. The statement updates guidelines for diagnosing and managing CVT, focusing on advancements in treatment approaches.
Researchers developed a novel hybrid approach combining traditional mathematical methods and cutting-edge machine learning to improve EIT analysis of building structures. The new method, called AND, reduces errors in reconstructing foreign objects' position and size compared to conventional EIT methods.
Researchers developed a new imaging technique to visualize the tumor microenvironment of glioblastoma, revealing insights into its pathology. The technique uses PET imaging with Carbon-11 acetate, tracking reactive astrocytes and distinguishing them from tumor cells.
Researchers at UMass Amherst have received an NIH grant to create predictive models for Alzheimer's disease using brain MRIs and clinical data. The goal is to enable earlier detection of the condition, ideally two years before onset of symptoms.
A study from Duke University found that people with PTSD have a significantly smaller cerebellum, especially in areas related to emotion and memory. Researchers hope this discovery will lead to targeted treatments and more research on the brain region's role in PTSD.
A new MRI-based method uses CEST technology to detect water cycling across cellular membranes, providing a non-invasive way to assess tumor malignancy and treatment effectiveness. The technique sheds light on tumor phenotype and offers a promising tool for personalized cancer diagnosis and therapy.
A new framework has been established for standardized imaging of diffuse gliomas using amino acid PET, enabling the evaluation of treatment success and improving therapies. The RANO group has developed criteria that enable reliable imaging of tumor activity and extent.
Researchers created a new brain imaging method that allows diagnosis of mild traumatic brain injuries (mTBI) even when existing imaging techniques don't show structural abnormalities. The technique uses immune cells to carry imaging agents into the brain, increasing correctly diagnosed mTBI cases and improving patient care.
A new study by UCL researchers suggests that a vest mapping the heart's electrical activity could help identify people at high risk of sudden cardiac death. The electrocardiographic imaging (ECGI) vest combines signals with MRI images to generate 3D models, potentially predicting risk factors for life-threatening heart rhythms.
Researchers developed a physics-based metric to predict aortic aneurysm development, measuring 'fluttering' in blood vessels. The 'flutter instability parameter' forecasted abnormal growth three years prior to occurrence with 98% accuracy.
Researchers developed a suite of free tools for analyzing vast amounts of brain dissection photographs, enabling the extraction and integration of quantitative information. The tools allow for the reconstruction of 3D brain images from biobank photos, providing valuable insights into neurodegenerative diseases.
Researchers at Linköping University used advanced diffusion MRI to examine the brains of patients with persisting symptoms after COVID-19 and found differences in white matter structure. This study provides new insights into the underlying mechanisms of post-COVID neurological problems.
Research found a correlation between early negative life events, orbitofrontal cortex thinning, and later depressive symptoms in young adults. A higher burden of negative life events and accelerated thinning of the region were associated with increased depressive symptoms.
Scientists at Tokyo Tech developed self-folding polymers to create smaller, safer gadolinium-based contrast agents for cancer diagnosis and neutron capture radiotherapy. These nanosized complexes show enhanced tumor accumulation and penetration, reducing toxicity while increasing MRI performance.
Researchers used AI to analyze brain white matter tracts in adolescents with and without ADHD, discovering significant differences in nine brain tracts in individuals with ADHD. Early diagnosis and intervention are key to managing the condition.
A new study finds that exposure and response prevention (EX/RP) therapy for OCD improves cognitive control by strengthening connections between brain networks. This breakthrough sheds light on the mechanisms underlying EX/RP's effectiveness in treating OCD, paving the way for targeted therapies.
Researchers identified a link between neck muscles and primary headaches, including tension-type headaches and migraines. Muscle T2 values were found to be significantly associated with headache frequency and neck pain.
A study found that Black patients undergo medical imaging for cognitive impairment years later than white and Hispanic patients, with significantly lower rates of MRI testing. This delay can lead to earlier stages of disease diagnosis and reduced treatment options.
A study using a novel MRI technique found that people with long COVID exhibit distinct brain changes compared to those who have fully recovered from COVID-19. The research suggests that these changes are associated with symptoms such as fatigue, cognitive impairment, and impaired sense of smell.
A novel AI system analyzing brain MRI scans can diagnose autism in children between 24 and 48 months with a 98.5% accuracy rate. This technology enables early detection of autism, potentially leading to improved independence, IQs, and therapeutic outcomes.
A recent study published in Circulation found that non-ischemic or dual cardiomyopathy occurs in 1 out of every 6 patients with coronary artery disease. These conditions are characterized by heart muscle damage and can lead to worse long-term outcomes. The researchers used cardiac MRI to determine the cause of cardiomyopathy, which has...
Researchers have successfully tested an MRI-equipped ambulance, enabling faster diagnosis of stroke patients and streamlining care. The device can provide diagnostic-quality images without radiation exposure, improving treatment outcomes.
A new study reveals that many hospitals fail to accurately post their standard charges online, with significant discrepancies found when comparing phone prices. The research compared prices for vaginal childbirth and brain MRI at 60 US hospitals and found missing data for over half of the hospitals.
A simple MRI scan and a new metric for prostatic urethra length may help identify men at risk of chronic urinary side effects after radiation therapy. The study found that longer prostatic urethras are associated with a higher likelihood of these symptoms, which can impact quality of life.
A new method using deep learning can provide as much information from brain images taken with CT as images captured with MRI, enhancing diagnostic support for conditions like dementia and other brain disorders. The software has been trained on 1,117 people and shows promise in diagnosing normal pressure hydrocephalus.
A new method was developed to predict organ motion in cancer patients undergoing radiation therapy, utilizing cross-sectional images from three orientations. The results showed improved accuracy when analyzing all three directions, with errors reduced to as low as 2.13mm.
A new size threshold for retropharyngeal lymph nodes is proposed to improve risk stratification and treatment decisions in patients with nasopharyngeal carcinoma. Using a 6-mm threshold, the study found significant differences in overall survival between stage-I and stage-II disease.
The University of Minnesota Medical School has received a $16 million grant from the NIH BRAIN Initiative to create detailed maps of brain connections. This project aims to better understand how complex neural pathways generate human behaviors and develop treatments for brain disorders.
Researchers propose that cerebrospinal fluid leaks could contribute to the link between traumatic brain injury and dementia. The hypothesis suggests that treating these leaks could mitigate dementia symptoms in some patients with a history of TBI. Further research is needed to confirm this potential association.
A study comparing PI-RADS 2.0 and 2.1 found no significant differences in upgrade (29% vs. 22%) or downgrade (19% vs. 21%) rates from targeted biopsy to radical prostatectomy, suggesting no improvement in prostate cancer grade assessment with the latest PI-RADS update.
Researchers at NYU Abu Dhabi have developed acidity-triggered rational membrane peptide-functionalized nanospheres that combine tumor detection and monitoring with potent, light-triggered cancer therapy. These nanospheres enable improved efficacy of phototherapies with minimal systemic toxicity.
A new imaging technique, multifocal acoustic radiation force-based reverberant optical coherence elastography (RevOCE), has been developed to measure the elasticity of multiple eye components simultaneously. This approach offers high resolution measurements of the stiffness of eye structures and could revolutionize how we study ocular ...
Researchers unveil a groundbreaking MRI technology that non-invasively assesses brain iron homeostasis, shedding light on its role in normal brain function, aging, and disease. The technology offers sensitivity to changes in iron mobilization capacity and can differentiate between tumor tissue and healthy tissue.