Articles tagged with Magnetic Resonance Imaging
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Patients receiving MRI-guided SBRT experienced significantly fewer urinary and bowel side effects compared to CT-guided treatment. MRI guidance also correlated with improved scores on specific quality-of-life measures, including bowel function and sexual health.
A Chinese Medical Journal study reveals that patients with prostate cancer can undergo surgical removal without a pre-operative biopsy, using a combination of mpMRI and PSMA PET/CT imaging. This approach reduces costs and complications associated with traditional biopsy methods.
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.
Researchers at Radboud University Medical Center found that an extra year of education does not protect against brain aging and has no effect on brain structure. Despite positive correlations between education and cognitive benefits, the study suggests caution in assigning causation when only correlation is observed.
Researchers found that improved blood sugar control significantly impacts brain health, slowing down age-related brain atrophy by up to 50%. The Green Mediterranean Diet, rich in polyphenols, shows promise in supporting metabolic and brain health.
The new center will advance multiple areas of active research on campus, including neurocognitive sciences and musculo-skeletal health. With support from across campus, UTA aims to improve research capabilities to enhance undergraduate and graduate educational opportunities.
Radiologists who had access to questionnaire information during MRI interpretation achieved a near statistically perfect agreement with spine specialists. This improved diagnostic accuracy and confidence, avoiding diagnostic discrepancies between radiologists and spine specialists.
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.
Researchers developed an AI model that can identify and measure aggressive prostate cancer lesions with high accuracy. The model's estimates of tumor size were associated with the likelihood of cancer recurrence or metastasis.
A novel collaborative framework integrates semi-supervised learning techniques to improve MRI segmentation accuracy, even with limited labeled data. The approach achieves high Dice scores and demonstrates its potential for practical clinical application.
A comprehensive evidence review on tethered spinal cord found that while surgery can benefit symptomatic patients, data for asymptomatic patients is lacking. The study also highlights the need for more research into conservative management and potential risks of surgical complications.
A new study suggests that MRI can predict patient outcomes and the risk of tumor reccurrence or spread for patients with rectal cancer who have undergone chemotherapy and radiation. This information could help doctors determine the best course of treatment, including whether to spare patients from invasive surgery.
A new image processing strategy for cardiac magnetic resonance imaging identifies areas responsible for complex ventricular tachycardias, enabling preoperative planning and reducing procedure times and complications. The systematic approach eliminates operator bias and increases sensitivity for detecting these regions.
A new study has definitively revealed the presence of an efficient waste-clearance system within the human brain, showing that cerebrospinal fluid flows through specific pathways to clear metabolic wastes generated by brain energy. Lifestyle measures and medications can maintain and enhance this system.
Damage to the brainstem, the brain's control centre, is behind long-lasting physical and psychiatric effects of severe Covid-19 infection. Researchers used ultra-high-resolution scanners to observe the damaging effects of Covid-19 on the brain, finding inflammation in key regions associated with breathlessness, fatigue and anxiety.
A new non-invasive imaging technique has been shown to accurately detect clear-cell renal cell carcinoma, the most common form of kidney cancer. The technique uses a monoclonal antibody drug that targets the protein CA9, highly expressed in up to 95% of clear cell kidney cancers.
A study by Osaka Metropolitan University found that ChatGPT's diagnostic performance for brain tumors was comparable to that of neuroradiologists, with an accuracy rate of 73%. The model's performance varied depending on the type of clinical report written, with higher accuracy when using reports from neuroradiologist writers.
A new study by Sylvester Comprehensive Cancer Center researchers shows that daily MRI imaging paired with radiation can monitor tumor changes in real-time. The technology has the potential to signal early warning signs of tumor growth, allowing for faster and more targeted treatment adaptations.
Researchers at TU Graz have developed a new machine learning method that generates precise live MRI images of the beating heart using only a few MRI measurement data. This breakthrough enables faster and cheaper MRI applications, including quantitative MRI for diagnoses.
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.
UCLA investigators presented data on chemoradiotherapy in rectal cancer, MRI-guided radiotherapy for prostate cancer, and symptom self-reporting during treatment. Researchers developed a predictive model to identify patients most likely to respond to chemoradiotherapy in rectal cancer.
Researchers have developed a new NMR platform using chemical exchange saturation transfer (CEST) MRI to visualize metabolite dynamics in living plants. This breakthrough enables noninvasive monitoring of sugar and amino acid distribution, improving crop improvement through breeding research.
A new study reveals how psilocybin alters brain connectivity to alleviate symptoms of body dysmorphic disorder, potentially aiding treatment. Psilocybin strengthens neural connections between executive functions and emotionally salient stimuli, leading to improved BDD symptoms.
A new study by the University of Minnesota found that developers of portable magnetic resonance imaging (MRI) systems failed to address ethical, legal and social issues as they designed and deployed the technology. The authors recommend that researchers, engineers and companies work with ethics and legal experts to formulate guidelines.
Researchers have successfully visualized and tracked specific cells in deep brain tissue, including along the corpus callosum's nerve fibre highway. This advancement could potentially lead to better diagnostic tools for glioblastoma, a deadly brain cancer.
The study compares nerve fiber orientation captured with specialized MRI and OCT approaches, laying groundwork for combining these imaging techniques. The findings show strong potential for PS-OCT to validate dMRI data, providing valuable insights about the microstructural organization of nerve fibers.
A new study reveals a significant correlation between entorhinal cortex thickness and financial exploitation vulnerability, a potential early indicator of Alzheimer's disease. The research suggests that assessing financial awareness could help identify cognitive changes in older adults.
Researchers at Boston University created an AI tool that can determine the cause of dementia using commonly collected patient data, boosting doctor accuracy by 26%. The algorithm identifies 10 types of dementia, including vascular and frontotemporal dementia, to help doctors manage patients more effectively.
Researchers at Boston University have developed low-cost, high-impact metamaterials solutions to improve MRI technology, enabling clearer imaging in low-resource areas. Wearable and deployable devices can be tailored to specific body parts, boosting signal-to-noise ratio and reducing scanning time.
A new study published in the Stroke journal found that people with brain aneurysms are at higher risk of developing mental health conditions, including anxiety. The study, which analyzed data from over 85,000 people, found that younger adults were particularly vulnerable to this increased risk.
A study of over 900 children with autism spectrum disorder found that brain overgrowth is associated with increased social and communication symptoms. The research used MRI brain images and mini-brain experiments to show that enlarged brains are linked to altered Ndel1 enzyme activity, potentially affecting brain development.
A new heart MRI technique accurately estimates pressures inside the heart to predict heart failure risk in a general population. Key risk factors identified include age over 70, high blood pressure, obesity, alcohol consumption, and male gender.
A new $3.5 million NIH grant will investigate the complex interplay between traumatic brain injury and genetic risk factors in the development of Alzheimer's disease. The three-year study will use rodents to assess disease progression across different age periods, providing insights into potential early intervention strategies.
A new study suggests that MRI scans can help doctors identify patients with more aggressive prostate cancer, allowing for earlier treatment or active surveillance. The research found that suspicious lesions on an MRI test were associated with a higher risk of advanced disease in five years.
A new deep learning model detects clinically significant prostate cancer on MRI with performance comparable to experienced abdominal radiologists. The model's prediction can be used as an adjunct to improve diagnostic performance and reduce false positives.
Researchers have developed an AI-based system that can predict the risk of prostate cancer more accurately than traditional methods. The new tool combines MRI images and deep learning to identify low-risk patients who may not need a biopsy, potentially sparing them from unnecessary procedures and reducing complications.
A new hybrid contrast agent has been developed to combine the benefits of MRI and PET imaging techniques, offering improved accuracy and opening new diagnostic applications. The agent has shown potential in detecting kidney problems and other conditions, paving the way for personalized diagnostics and precise imaging.
A clinical trial found that fish oil supplements slowed neuronal integrity breakdown in older adults with the APOE4 gene variant, a risk factor for Alzheimer's disease. The study showed no benefit for all older adults, but suggested omega-3 fatty acids may be useful for prevention.
A novel study finds that monitoring cortical microstructural change in the brain using diffusion weighted MRI scans may help identify individuals at risk for cognitive decline and Alzheimer's disease. Tracking these changes over time could provide precious time for disease-modifying treatments.
α-Synuclein pathology in asymptomatic stages is linked to NBM atrophy, leading to attention/executive impairment. MRI signatures can detect this pathology in memory clinic populations.
A machine learning algorithm was trained to predict individuals with functional neurological disorder (FND) by analyzing their brain structure. The algorithm achieved significant above-chance accuracy in classifying FND participants against healthy controls and psychiatric samples, highlighting the importance of considering both brain ...
The study establishes criteria for identifying extranodal extension on imaging, allowing radiologists to make accurate calls and provide patients with less invasive treatments. This shift towards practice change has the potential to reduce side effects and improve outcomes for patients with HPV-associated head and neck cancers.
Researchers found that out-of-pocket costs for additional tests, including MRI and biopsies, are common and increasing among privately insured men with high PSA results. The median cost rose substantially between 2010-2020, deterring patients from undergoing recommended screening.
Researchers developed an AI model to analyze heart MRI scans, which can save NHS time and resources. The model provides a complete analysis of the entire heart using a view that shows all four chambers, leading to faster and more accurate diagnosis of heart failure and other cardiac conditions.
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.
Researchers from Aarhus University have developed a method that can detect the earliest changes in the kidney when scar tissue begins to form. This technology uses hyperpolarized 13C-pyruvate MRI to track fibrosis formation, allowing doctors to start treatment earlier and potentially prevent damage.
A new liquid biopsy method analyzes gene fragments in the bloodstream to detect and track cancer, enabling oncologists to tailor treatment approaches to individual patients. This non-invasive test can help monitor treatment success, detect cancer recurrence, and improve patient quality of life.
Researchers found individuals with schizophrenia struggle to discriminate between reward levels, leading to apathy and motivation deficits. The study suggests potential treatments, including brain stimulation and targeted psychotherapy.
Researchers from INRAE have developed a training protocol to enable lambs to undergo MRI acquisitions while awake and unrestrained. The successful protocol has already yielded comparable brain images to those obtained from anaesthetised sheep, opening up new avenues for studying animal brain function.
A phase 2 study found fluorine-18 PSMA-1007 PET/computed tomography to be superior to multiparametric MRI for locoregional staging of prostate cancer. The technology supports its use in the preoperative workflow for intermediate-risk and high-risk tumors.
Researchers explore the feasibility of deep learning models in segmenting lesions on PET/CT images to improve salvage radiation therapy planning for prostate cancer. The study demonstrates promising potential to reduce inter- and intra-observer variations, leading to more accurate treatment outcomes.
A longitudinal study has found that tissue bridges in the spinal cord are associated with short- and long-term clinical improvements in patients with cervical spine injuries. The study's models, developed by a team of experts, incorporate tissue bridges for improved prognosis and can be transferred to other patient cohorts.
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...
A study published in Radiology found that brain connectivity on MRI scans can predict the progression of brain atrophy in patients with mild Parkinson's disease. The researchers used MRI data to generate a map of the brain's neural connections, which showed potential in predicting gray matter atrophy accumulation over time.
Researchers from University of Hong Kong developed a whole-body MRI scanner operating on standard wall power outlet without shielding cages, addressing MRI accessibility challenges. The machine achieved clear imaging at ultra-low field strength of 0.05 Tesla with improved image quality and reduced scan time.
A new method in neuroimaging analysis allows researchers to predict cognition and behavioral variables using smaller datasets, contrary to the long-held belief that thousands of participants are needed. The technique involves examining MRI data to find associations with behaviors and then applying predictions to an independent sample.
Researchers at USC Dornsife College of Letters, Arts and Sciences found that brains display unique neural activity when experiencing bittersweetness, a common yet understudied phenomenon. They discovered that mixed emotions hold steady over time, unlike ping-ponging between negative and positive feelings.
A study found that neural balance, measured by the E/I ratio, is associated with brain maturity and better cognitive ability. Research suggests that as children develop, their E/I ratios decrease, leading to improved performance in cognitive tests.
A recent study published in The Lancet Oncology found that an AI system can detect prostate cancer nearly seven percent more significantly than a group of radiologists using MRI scans. Additionally, the AI identifies suspicious areas less often, potentially reducing unnecessary biopsies by half.
Researchers developed metamaterials-enhanced MRI technology using coaxial cables to boost signal-to-noise ratio. The innovative coils address patient discomfort and cost by providing adaptable, form-fitting designs for various anatomical sites.