Articles tagged with Magnetic Resonance Imaging
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 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 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.
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.
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.
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.
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.
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.
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 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.
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.
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 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 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.
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.
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.
Scientists developed a novel quantum sensor that can detect oxidative stress in organs during MRI scans, which could lead to early diagnosis of diseases like cancer and kidney dysfunction. The sensor uses a ring-shaped sugar-like compound and nitroxide derivatives to identify reduced cell/tissue capacity.
Researchers used MRI technology to investigate a new strategy for managing sodium levels in hemodialysis patients. Four weeks of low-sodium meals significantly reduced weight gain, thirst, and phosphorus levels in participants.
Research suggests that radiologists' diagnoses of lumbar spine pain generators are highly accurate when using patient-reported symptom information from brief questionnaires. The study found almost perfect agreement between radiologists' diagnoses using symptom information and those without it, improving diagnostic certainty levels.
Scientists used MRI to study brain activity during sleep, discovering that overall activity decreases but communication among brain regions becomes more dynamic. The findings suggest a breakdown in neural networks during transitions between light and deep sleep stages, with implications for understanding human consciousness.
A study of 419 breast MRI examinations found new suspicious findings in 5.5% of patients, but all were benign; results suggest biopsies may not be necessary for patients responding well to neoadjuvant therapy.
A study by Vanderbilt University Medical Center found lower degrees of myocarditis in athletes with a history of COVID-19 compared to previously reported rates. The research highlights the importance of considering cardiac MRI as an additional screening tool for detecting myocarditis in athletes.
A new imaging technique has been developed to identify non-ferromagnetic projectiles that are safe for MRI, enabling patients with ballistic embedded fragments to receive medical treatment. The technique uses radiography and CT images to distinguish between ferromagnetic and non-ferromagnetic bullets, allowing for safer MRI scans.
Drs. Kelil and Jaimes will investigate personalized breast cancer risk assessment and fetal diffusion tensor imaging to improve conventional risk prediction models and characterize normal brain development in fetuses with congenital heart disease. Their studies aim to harness cutting-edge MRI processing tools to correct for fetal motion.
Researchers in Japan have used machine intelligence to fine-tune algorithms for brain mapping by MRI, improving the accuracy and reliability of connectome estimation. The new technique generates more convincing results, particularly in detecting long-range nerve fibers, crucial for understanding brain function.
The study investigated factors affecting upper limb motor recovery after a stroke and found that structural integrity of the corticospinal tract is a key predictor. The researchers used transcranial magnetic stimulation (TMS) and magnetic resonance imaging (MRI) to assess the condition of the corticospinal tract in 35 patients.