Articles tagged with Magnetic Resonance Imaging
Researchers found that early accumulation of tau proteins in the brain, measured by PET scanner, is more effective at predicting memory impairment than other biomarkers. The study suggests that tau PET should be recommended for clinical prognostic assessment of cognitive decline in Alzheimer's patients.
A new imaging technique using PET/MR and a PET tracer directed against CXCR4 shows high accuracy in detecting MALT lymphomas of the stomach, potentially reducing the need for repeated gastroscopies. The study found that [68Ga]Pentixafor PET/MR achieved 97% accuracy in detecting tumours compared to gastroscopy.
New guidelines aim to standardize interpretation of MRI scans in patients with pelvic floor disorders, promoting shared understanding among professionals. The consensus statement provides definitions and templates for diagnosing conditions such as incontinence, constipation, and prolapse.
Scientists developed a machine learning method to analyze NMR data, allowing faster and more accurate analysis of proteins and chemical reactions in the human body. The method uses an artificial deep neural network to separate and analyze complex data, resulting in highly reproducible results comparable to human experts.
Researchers at Rice University have refined models to analyze gadolinium-based contrast agents, which are used in 40% of MRIs worldwide. The team's goal is to design better and more customizable contrast agents that improve image quality while minimizing risks.
Research reveals that lupus patients with higher white matter free water have more severe cognitive dysfunction, related to increased cumulative dosage of medical steroids. The study suggests that reducing steroid dosage may alleviate cognitive decline in SLE patients.
A multidisciplinary organization has reached consensus on guidelines for performing, interpreting, and reporting MR defecography. The consensus templates aim to standardize care for patients with evacuation disorders of the pelvic floor.
Patients with bipolar disorder experiencing manic episodes show abnormal brain changes, including faster cortical thinning, compared to those without episodes. The study also found associations between brain ventricle enlargement and accelerated cognitive decline in bipolar patients.
A team of neuroscientists at the Beckman Institute developed safety standards for multiband EEG-fMRI imaging, reducing heating risks and maintaining data quality. By establishing protocols to mitigate artifacts, they enabled the use of accelerated fMRI sequences with EEG recordings.
Researchers at Vanderbilt University Medical Center developed a standardized MRI protocol for pancreatic imaging, enabling reproducible measurements across different MRI hardware and software. The study demonstrates potential for incorporating MRI into multisite clinical trials, advancing diabetes research and treatment.
A new portable MRI device has been shown to accurately identify intracranial hemorrhages in stroke patients, with a correct identification rate of 80%. The device is being hailed as a potential game-changer for doctors treating strokes in resource-limited settings.
A new 3D spiral gradient recalled echo (GRE) sequence has been developed to overcome conventional challenges in head and neck MRI. This sequence achieves improved image quality and contrast-to-noise ratio compared to traditional Cartesian sequences, while reducing scan time by up to 44.6%.
A novel blood test, Stockholm3, can reduce the number of MRIs performed by a third while preventing the detection of minor, low-risk tumours. The addition of this test to MRI reduces overdiagnosis by as much as 69% and halves the number of biopsies.
Researchers found that epilepsy surgery is associated with improved overall brain health, reducing brain-predicted age by at least seven years in patients with refractory temporal lobe epilepsy. The study used advanced MRI techniques to inform its findings and suggests earlier surgery may benefit these patients.
New research published in eNeuro found that premature babies' brain connections at birth can predict their future emotional and social development. The study discovered a link between the strength of the uncinate fasciculus, a white matter tract involved in emotional regulation, and emotion moderation skills in preschoolers.
Researchers found that pre-treatment T2-weighted MRI texture features can accurately predict the response to neoadjuvant chemotherapy in patients with locally advanced breast cancer. The study identified 7 significant texture features and achieved high classification accuracy using a k-nearest neighbor model.
Researchers have developed a new MRI methodology called Correlation Tensor Imaging (CTI) that can analyze stroke lesions with unprecedented accuracy. This technology may predict individual outcomes and guide treatment, improving patient care.
Researchers developed a non-invasive optical technique using spectroscopy to identify structural changes in the brain and diagnose Alzheimer's disease. The new technology has potential as a simple, completely non-invasive method of early detection and could also assess treatment effectiveness.
King's College London researchers have automated brain MRI image labelling by leveraging radiology reports, enabling the labelling of over 100,000 exams in less than half an hour. This breakthrough tackles a bottleneck in deep learning image recognition tasks for complex datasets like MRI.
A study of 44 elite rugby players found significant changes in white matter and volume over time. The research suggests that professional rugby participation may be associated with structural changes in the brain that could have long-term implications for player health.
A standardized non-invasive clear cell likelihood score derived from MRI correlates with the growth rate of small renal masses. Small renal masses with higher scores are more likely to grow faster and may require earlier intervention.
Research found that MRI's static magnetic field decreases blood-brain barrier opening volume and microbubble cavitation activity, leading to reduced drug delivery efficiency. The study suggests considering the impact of the magnetic field in clinical applications of focused ultrasound for brain disease treatment.
The SCAIFIELD project aims to develop measuring protocols and procedures for maximizing the use of existing MRI technology. This will enable finer details of the human brain to be visualized, leading to better detection of pathological changes in neurodegenerative diseases such as spinocerebellar ataxias.
Researchers found that quadriceps tendon autografts had a lower MRI signal at 12 months compared to hamstring tendon autografts, indicating quicker graft maturation and improved structural integrity. This suggests that quadriceps tendon autografts may have a superior rate of incorporation and synovialization.
A new study suggests that magnetic resonance imaging (MRI)-based screening can reduce unnecessary biopsies and detect clinically significant tumours while halving overdiagnoses. The results come from a randomized study conducted at Karolinska Institutet in Sweden.
A new AI tool automatically measures fat around the heart from MRI scan images, linking it to increased diabetes risk. The tool was tested on over 45,000 people and accurately calculated their risk of developing diabetes.
A NIST-led study comparing 27 MRI scanners found significant bias and variation in T1 measurements, which can affect diagnosing brain tumors. The study recommends establishing rigorous quality control procedures for quantitative MRI to promote confidence and stability in measurement techniques.
Researchers at Wayne State University are developing new strategies to assess appropriate treatments of peripheral nerve diseases using MRI biomarkers. The study focuses on nerve MRI methods that can directly image pathology within nerves, offering valuable information on disease progression and improving treatment evaluation.
Scientists have imaged an entire mouse brain at the microscopic to macroscopic level using a new micro-CT approach. This technique bridges the resolution gap between MRI and electron microscopy, enabling the connection of biomarkers across multiple scales and improving image resolution.
A reduced dose of gadobutrol was found to be non-inferior to the standard dose of gadoterate for contrast-enhanced brain MRI in patients undergoing multiple examinations. The study demonstrated equivalent efficacy for lesion detection and delineation.
A recent study found that cannabis use during adolescence is associated with reduced thickness in certain brain areas, according to researchers at the University of Vermont. The study used magnetic resonance imaging to measure brain structure and suggest a possible link between early cannabis use and neurodevelopmental changes.
A new imaging technique, flexed elbow valgus external rotation (FEVER) view, has been shown to improve the evaluation of ulnar collateral ligament (UCL) injuries in Major League Baseball pitchers. This study found increased joint space width and diagnostic confidence with FEVER view compared to standard positioning.
Placental bulge sign on prenatal ultrasound or MRI significantly aids diagnosis of severe placenta accreta spectrum disorder, warranting hysterectomy over conservative management. The sign's accuracy and sensitivity are notable, making it a valuable tool for maternal counseling.
Researchers have developed microdiamond tracers that can provide information via both MRI and optical fluorescence simultaneously, allowing high-quality images up to a centimeter below the surface of tissue. This technique enables faster imaging and overcomes the limitation of light microscopy in probing deeper tissues.
Researchers discovered that manganese-enhanced MRI scans provide more accurate details of heart function than traditional methods, potentially increasing survival chances. The study suggests that early detection within the first few hours of a heart attack can optimize treatment regimes and regulate cardiac muscle changes.
A new imaging technique, 3D amplified MRI (aMRI), visualizes the brain's movement in real-time and in stunning detail. This method holds diagnostic potential for detecting obstructive brain disorders and aneurysms, which could lead to better treatment strategies.
A new study using 7T brain scans suggests that compromised energy metabolism may be an early indicator of mild cognitive impairment and Alzheimer's disease. The researchers found a correlation between the energy reserve index and cognition levels, providing new insights into the disease.
Researchers used ultra-high field MRI to map the brains of people with Down syndrome, detecting subtle differences in hippocampal structure and function. The study provides insight into how subregions of the hippocampus are connected to other brain areas.
Researchers develop new technique to hyperpolarize and purify fumarate for MRI, offering cost-effective and convenient way to track metabolism in real-time. The method has potential applications in monitoring tumor responses to therapy and imaging acute kidney injuries.
A new species of deep-sea dumbo octopus has been identified using a combination of non-invasive and minimally invasive techniques. The study utilized MRI, micro-CT, and gene analysis to gather morphological and molecular information on the specimen without causing harm.
A retrospective review found non-contrast pituitary MRI has a high concordance rate with original reports, excepting cases requiring contrast for definitive characterization. The study suggests saving time and costs in imaging pediatric pathologies.
A recent study by Kanazawa University researchers found that leg muscle action can improve blood flow independently of age. The study used MRI imaging to measure changes in blood flow and pump action in the legs of healthy volunteers aged 24, 47, and 72 years.
At EuroCMR 2021, experts presented novel research on using hypnosis to enable claustrophobic patients to undergo CMR, the effect of weight loss on heart function in obese people, and improving detection of cardiotoxicity in lymphoma survivors. CMR is also revealing sex differences in how the heart adapts after a myocardial infarction.
Researchers at the University of Cambridge have developed a technique to track individual atoms in real time, allowing for greater control over material growth. This breakthrough could enable more precise design and manufacture of materials with unique properties.
Researchers have updated a pig brain atlas, increasing its resolution and adding a new atlas for adolescent pigs. The updated atlases will enable more precise studies of brain development and the impact of nutritional interventions on human infants. With improved detail, researchers can now study brain development in pigs up to adulthood.
Researchers have developed a kirigami technique to fabricate complex 3D nanostructures with unprecedented ease. By strategically introducing cuts to a uniform structural film, the team can create sophisticated three-dimensional structures that can change shape in response to environmental changes.
A study investigated incidental findings in brain MRIs of children, revealing significant rates that could affect diagnoses and treatments. The research highlights the importance of thorough image review and reporting.
A large study of 11,679 nine- and ten-year-old children found potentially life-threatening brain abnormalities in 1 in 500 children and minor abnormalities in 1 out of 25. The study aims to save lives by reviewing MRI scans for incidental findings.
Research suggests that contrast-enhanced mammography (CEM) is concordant with MRI for staging in women with newly diagnosed breast cancer and breast augmentation. CEM was found to be effective in detecting additional cancers not identified by MRI, including two malignant lesions.
A new study by Dartmouth engineers has reduced patient wait times at Lahey Hospital in Massachusetts by 23%. The researchers used optimization and simulation tools to analyze data and develop a mathematical model to optimize the length of each exam slot and placement of inpatient exams.
Researchers studied COVID-19 patients in France, finding associations between brain MRI images, electroencephalography (EEG) recordings, and clinical symptoms. The study also discovered correlations between EEG findings and specific brain regions affected by the virus.
A large multidisciplinary study led by King's College London found that MRI scanning can show malformations in great detail, including their effect on surrounding structures. The procedure is safe for pregnant women and their babies, making it a valuable tool for clinicians and parents.
A new hyperpolarized proton MRI method has been developed by researchers at Johannes Gutenberg University Mainz and the Helmholtz Institute Mainz. This technique uses parahydrogen to track biochemical processes in real-time, enabling the observation of metabolic processes without the drawbacks of existing hydrogen-based imaging methods.
Researchers developed a nanoparticle-based MRI contrast agent called SAIO for high-resolution 3D microvascular imaging, outperforming traditional gadolinium-based agents. The agent provides excellent resolution and stability, allowing for accurate diagnosis of cerebro-cardiovascular diseases.
A research team from MedUni Vienna has confirmed a threshold value for a non-invasive imaging biomarker in breast cancer screening. This can be incorporated into short standard MRI scans to reduce biopsy rates by 30%. DWI, a special MRI technique, measures the motion of water molecules and can indicate whether a biopsy is necessary.
A recent study found that more than half of COVID-19 patients discharged from hospital show signs of heart damage, including inflammation and scarring. The research used MRI scans to detect the damage in patients who had raised troponin levels indicating a possible problem with the heart.
Researchers found significant eye abnormalities in severe COVID-19 patients using MRI scans, suggesting the need for routine eye screening. The study also recommends dedicated exploration of eyes with high-resolution MRI, fundoscopy, and optical coherence tomography to detect nodules and monitor their impact.
Metal-containing diagnostic agents can detect early AD markers and synchrotron-independent, long-lived. They may improve access to AD imaging for risk groups, offering a solution to the current limitations of PET, MRI, and SPECT imaging.
A team led by Alexander Eichler has demonstrated the first scanning force microscope with a vibrating substrate, pushing sensitivity to its fundamental limit. The approach uses a perforated membrane as the 'table' and features an optical interferometer for sensitive measurement.
A Phase III clinical trial has shown that Magnetic Resonance Imaging (MRI) with targeted biopsies can detect clinically significant prostate cancer more accurately and reduce the need for invasive procedures. The study found that MRI-TBx can help avoid unnecessary treatments and improve patient outcomes.