Articles tagged with Magnetic Resonance Imaging
Comprehensive exploration of living organisms, biological systems, and life processes across all scales from molecules to ecosystems. Encompasses cutting-edge research in biology, genetics, molecular biology, ecology, biochemistry, microbiology, botany, zoology, evolutionary biology, genomics, and biotechnology. Investigates cellular mechanisms, organism development, genetic inheritance, biodiversity conservation, metabolic processes, protein synthesis, DNA sequencing, CRISPR gene editing, stem cell research, and the fundamental principles governing all forms of life on Earth.
Comprehensive medical research, clinical studies, and healthcare sciences focused on disease prevention, diagnosis, and treatment. Encompasses clinical medicine, public health, pharmacology, epidemiology, medical specialties, disease mechanisms, therapeutic interventions, healthcare innovation, precision medicine, telemedicine, medical devices, drug development, clinical trials, patient care, mental health, nutrition science, health policy, and the application of medical science to improve human health, wellbeing, and quality of life across diverse populations.
Comprehensive investigation of human society, behavior, relationships, and social structures through systematic research and analysis. Encompasses psychology, sociology, anthropology, economics, political science, linguistics, education, demography, communications, and social research methodologies. Examines human cognition, social interactions, cultural phenomena, economic systems, political institutions, language and communication, educational processes, population dynamics, and the complex social, cultural, economic, and political forces shaping human societies, communities, and civilizations throughout history and across the contemporary world.
Fundamental study of the non-living natural world, matter, energy, and physical phenomena governing the universe. Encompasses physics, chemistry, earth sciences, atmospheric sciences, oceanography, materials science, and the investigation of physical laws, chemical reactions, geological processes, climate systems, and planetary dynamics. Explores everything from subatomic particles and quantum mechanics to planetary systems and cosmic phenomena, including energy transformations, molecular interactions, elemental properties, weather patterns, tectonic activity, and the fundamental forces and principles underlying the physical nature of reality.
Practical application of scientific knowledge and engineering principles to solve real-world problems and develop innovative technologies. Encompasses all engineering disciplines, technology development, computer science, artificial intelligence, environmental sciences, agriculture, materials applications, energy systems, and industrial innovation. Bridges theoretical research with tangible solutions for infrastructure, manufacturing, computing, communications, transportation, construction, sustainable development, and emerging technologies that advance human capabilities, improve quality of life, and address societal challenges through scientific innovation and technological progress.
Study of the practice, culture, infrastructure, and social dimensions of science itself. Addresses how science is conducted, organized, communicated, and integrated into society. Encompasses research funding mechanisms, scientific publishing systems, peer review processes, academic ethics, science policy, research institutions, scientific collaboration networks, science education, career development, research programs, scientific methods, science communication, and the sociology of scientific discovery. Examines the human, institutional, and cultural aspects of scientific enterprise, knowledge production, and the translation of research into societal benefit.
Comprehensive study of the universe beyond Earth, encompassing celestial objects, cosmic phenomena, and space exploration. Includes astronomy, astrophysics, planetary science, cosmology, space physics, astrobiology, and space technology. Investigates stars, galaxies, planets, moons, asteroids, comets, black holes, nebulae, exoplanets, dark matter, dark energy, cosmic microwave background, stellar evolution, planetary formation, space weather, solar system dynamics, the search for extraterrestrial life, and humanity's efforts to explore, understand, and unlock the mysteries of the cosmos through observation, theory, and space missions.
Comprehensive examination of tools, techniques, methodologies, and approaches used across scientific disciplines to conduct research, collect data, and analyze results. Encompasses experimental procedures, analytical methods, measurement techniques, instrumentation, imaging technologies, spectroscopic methods, laboratory protocols, observational studies, statistical analysis, computational methods, data visualization, quality control, and methodological innovations. Addresses the practical techniques and theoretical frameworks enabling scientists to investigate phenomena, test hypotheses, gather evidence, ensure reproducibility, and generate reliable knowledge through systematic, rigorous investigation across all areas of scientific inquiry.
Study of abstract structures, patterns, quantities, relationships, and logical reasoning through pure and applied mathematical disciplines. Encompasses algebra, calculus, geometry, topology, number theory, analysis, discrete mathematics, mathematical logic, set theory, probability, statistics, and computational mathematics. Investigates mathematical structures, theorems, proofs, algorithms, functions, equations, and the rigorous logical frameworks underlying quantitative reasoning. Provides the foundational language and tools for all scientific fields, enabling precise description of natural phenomena, modeling of complex systems, and the development of technologies across physics, engineering, computer science, economics, and all quantitative sciences.
The Human Connectome Project aims to create detailed maps of brain circuitry in healthy adults and those with psychiatric and neurologic illnesses. The project will use state-of-the-art imaging instruments and analysis tools to shed light on how brain networks are organized and how they change as we age.
A study suggests that staggered radiologist work shifts can expedite the communication of urgent findings and improve patient care. Radiologists were able to communicate urgent results two hours earlier than control groups, reducing mean elapsed times from image acquisition to result communication.
A study of triathletes found that their hearts become larger and stronger as a result of endurance and resistance training. This adaptation reflects the nature of triathlon training, which combines both forms of exercise.
Researchers at Max Planck have developed an new MRI method that significantly accelerates image acquisition time, allowing for 'live recordings' of moving joints and organs. This breakthrough enables direct monitoring of heart muscle pumping and blood flow, potentially improving diagnosis of conditions like coronary heart disease.
Researchers have developed a new diagnostic tool using Magnetic Resonance Spectroscopy that can identify neurological diseases in patients without clear symptoms. The study shows promise for early diagnosis of degenerative brain disorders such as Huntington
A study using MRI and MR spectroscopy found that abdominal and liver fat are key predictors of successful weight loss in individuals at risk of developing type 2 diabetes. After a lifestyle intervention, participants with lower baseline levels of these fats experienced greater reductions in body weight and improved insulin sensitivity.
A study found that whole-body MRI can detect soft-tissue injuries in infants with suspected child abuse. However, its effectiveness in detecting skeletal injuries is limited. The imaging modality may still be useful as a supplement to skeletal surveys in selected cases.
Researchers have demonstrated the use of iron oxide nanoparticles to deliver antibodies to implanted brain tumors, enhancing tumor visibility via MRI while killing cancer cells. The particles also show potential for targeted therapy against glioblastoma multiforme, a common and aggressive primary brain tumor.
Researchers developed a non-invasive MRI method to visualize and quantify tumor angiogenesis, a crucial process for cancer growth. The new technique uses nanotechnology and MRI to detect early stages of blood vessel formation, enabling more accurate diagnosis and treatment adjustments.
Wake Forest University Baptist Medical Center researchers have developed a new technology using iron-containing Multi-Walled Carbon Nanotubes to treat cancer. The iron-loaded nanoparticles can be tracked in living tissue and destroy tumors when hit with a laser, offering a potential solution to increasing the accuracy of cancer treatment.
Researchers have successfully used iron-containing Multi-Walled Carbon Nanotubes (MWCNTs) to destroy tumors with heat generated by laser therapy. The nanotubes become visible in an MRI scanner, allowing for precise targeting of cancer cells and reducing the risk of harming healthy tissue.
A new guideline recommends using diffusion MRI scans instead of CT scans for diagnosing acute ischemic stroke within 12 hours. MRI scans are found to be more accurate in detecting stroke damage and identifying severity, leading to faster diagnosis and treatment.
The Wellcome-Wolfson partnership is funding £30 million of large-scale university infrastructure projects in the UK. This initiative aims to facilitate internationally competitive biomedical research, enabling scientists to make groundbreaking discoveries and turn them into clinical applications.
A new £7m research center at the University of York is developing hyperpolarisation with parahydrogen to increase MRI sensitivity. This could enable doctors to make diagnoses in minutes instead of days and tailor treatments more accurately.
Danish scientists used MRI and CT to study internal organs in animals like alligators, snakes, and tarantulas. They found that snakes adapt their organs for big meals and digestion, allowing them to survive 'feast and famine' lifestyles.
A study found that imaging-guided percutaneous needle biopsies increased by 67% between 1997 and 2008, while open biopsies decreased. The technique offers greater precision and lower complication rates, resulting in a modest growth rate of 3% overall.
Researchers found that meniscal and cruciate ligament lesions increase the risk of developing specific types of knee osteoarthritis. Surgical therapy does not reduce this risk, according to a new study published in Radiology.
A University of Kentucky study found changes in white matter connections in high-risk Alzheimer's patients before symptoms manifest. The research used MRI to assess microstructural integrity of axons and myelin in the brains of high- and low-risk groups.
Researchers at Massachusetts General Hospital describe mathematical patterns underlying human preference, potentially guiding psychiatric disorder diagnosis and treatment. The study's findings meet criteria for scientific laws, showing predictable patterns in preference behavior.
Researchers used CASL MRI to compare cerebral blood flow in 11 non-medicated patients with schizophrenia and 25 healthy controls. The study revealed extensive areas of hypoperfusion in frontal lobes and higher cognitive function regions, while hyperperfusion was observed in cerebellum and brainstem.
A new rule at Massachusetts General Hospital has led to a significant decrease in unnecessary imaging exams for patients. The change encourages physicians to directly log into the system, reducing low-yield exams from 5.4% to 1.9%.
Researchers used MRI to identify high-risk atherosclerotic plaques in an animal model, which could lead to non-invasive diagnosis and treatment of patients. The study found that MRI can accurately detect stable and unstable plaques, including those with enhanced gadolinium uptake associated with inflammation.
The NIST-developed Phannie phantom is a plastic sphere filled with water-bathed grids of small magnetized spheres. It allows for accurate calibration of MRI machines, improving image quality and reliability. The phantom will help reduce medical costs by enabling consistent tumor measurements across patients and scanners.
A case report highlights the diagnostic significance of computed tomography (CT) and magnetic resonance imaging (MRI) for duodenocaval fistula (DCF). Noninvasive CT and MRI are suggested as a first-line investigation for diagnosis, improving patient outcomes.
Researchers will assess MRI technology to measure muscle tissue in children with Duchenne muscular dystrophy, aiming to facilitate therapy testing and improve disease management. The study may provide valuable guidelines for MRI use in clinical trials and drug tests targeting DMD treatments.
Conventional MRI may detect a large percentage of hip labral tears, suggesting it as an acceptable alternative to MR arthrography. However, further study is needed to confirm its effectiveness in evaluating nonspecific hip pain.
Ultrasound imaging is a highly effective and non-invasive test for characterizing peroneal nerve damage in patients with foot drop. High-resolution ultrasound was found to be more effective than EMG and MRI for evaluating common causes of foot drop, making it the recommended first-line imaging choice.
A study found that preoperative MRI can help surgeons identify the neurovascular bundle and spare it during RALP, leading to better erectile function outcomes. The technique has improved surgical decision-making without compromising oncological results.
A recent study presented at the ARRS Annual Meeting found that whole body MRI is highly accurate in detecting breast cancer metastases. The test identified bone metastases in 47 out of 99 patients with known breast cancer, while a chest X-ray only detected them in 24 patients.
A study suggests that preoperative breast MRI can reduce local breast cancer recurrences at follow-up, particularly in young patients with dense breast tissue. The study found that patients who received a contrast-enhanced MRI prior to surgery had significantly fewer local recurrence cases.
A new study suggests that indeterminate breast lesions found in high-risk patients should be evaluated more aggressively to exclude a possible malignancy. The research found that 22% of these lesions were proven positive for cancer on follow-up and subsequent biopsy, highlighting the need for earlier evaluation.
A study suggests that breast magnetic resonance imaging (MRI) can detect breast lesions missed on mammography and ultrasound, influencing surgical management choices. Breast MRI positively impacts patient management decisions, potentially reducing the need for re-intervention by accurately assessing tumor extent.
Tetrahedral dice pack 76% of container space, surpassing sphere packing, and single molecules can calculate thousands of times faster than PCs.
Researchers at Ohio State University have developed nanoparticles that can enhance MRI scans and surgical procedures for brain tumor removal. The magnetic and fluorescent nanocomposites can help doctors visualize tumors before surgery, allowing for more precise removal.
Advanced imaging techniques like CT scans and MRI can shorten hospital stays and decrease costs. Studies found that early imaging on the day before or day of admission resulted in a one-day shorter length of stay for certain patients.
A new study by the American College of Radiology found that X-rays are often inconclusive in detecting hip and pelvic fractures. The study used magnetic resonance imaging (MRI) to confirm or rule out fractures, revealing a significant number of missed diagnoses.
A study published in the American Journal of Roentgenology found significant geographic variation in noninvasive diagnostic imaging utilization rates among Medicare beneficiaries. The study revealed that Atlanta had the highest utilization rate, while Seattle had the lowest, with a difference of over 50% between the two regions.
Researchers at Johns Hopkins School of Medicine have discovered a potential new treatment using bone marrow stem cells to build new blood vessels in the upper leg. The treatment, which uses X-ray-visible microbubbles to deliver stem cells, was shown to dramatically improve the body's ability to form new blood vessels and provide a more...
Magnetic resonance-guided focused ultrasound (MRgFUS) is a new interventional radiology tool showing promise in treating uterine fibroids, offering lasting relief from symptoms without surgery. In a study of over 100 patients, women experienced significant improvement in symptoms, with 90% reporting considerable or excellent relief.
A recent study reveals that 70% of professional and collegiate hockey players had abnormal hip and pelvis MRIs despite no symptoms. The findings highlight the importance of using clinical judgment alongside imaging in sports medicine diagnosis.
Postmenopausal women, especially those over 70, have a higher prevalence of cancer detected in the undiagnosed breast with MRI compared to premenopausal women. Detecting and treating both breasts at the same time may save costs and reduce patient stress.
A study published in the Journal of the American College of Radiology found that PET scanner ownership by non-radiologists has significantly increased, outpacing radiologist-owned scans. This trend contributes to unnecessary imaging utilization and increased costs.
A large academic medical center found that a significant percentage of outpatient referrals for CT and MRI studies from primary care physicians were inappropriate. The study, performed at Harborview Medical Center in Seattle, WA, included medical records from 459 elective outpatient CT and MR examinations.
A recent multicenter cohort study reveals that magnetic resonance imaging (MRI) is substantially more accurate for early diagnosis of breast cancer than digital mammography or breast ultrasound. For young women at elevated risk, annual MRI is considered necessary and sufficient for screening.
Research using MRI reveals that childhood stress and abuse can lead to permanent brain structure changes, making individuals more susceptible to developing depression. The study's findings have significant implications for early intervention and prevention strategies.
A new study suggests that annual combined screening with both mammography and breast MRI can improve life expectancy in women with increased breast cancer risk. This approach detects early-stage cancers more effectively and provides the greatest relative mortality reduction.
A study published in the American Journal of Roentgenology found that MRI accurately identified 28 malignant and 7 benign lesions, enabling accurate estimation of local disease extent in patients with malignant tumors. This noninvasive diagnostic tool may improve patient care by reducing unnecessary surgical procedures.
Researchers used contrast-enhanced MRI to differentiate between rheumatoid arthritis and psoriatic arthritis, finding a significant difference in perfusion after 15 minutes. The study suggests that contrast-enhanced MRI could play a key role in targeted therapies for each condition.
The COMICE study found that adding MRI to conventional triple assessment for breast cancer diagnosis had no impact on reoperation rates. Despite this, the study suggests that routine use of MRI in this population may not reduce health outcomes or costs, but rather increase them. The results have implications for healthcare providers an...
A new study by neurology researchers at the University at Buffalo found that blacks with multiple sclerosis (MS) have more damage to brain tissue and accumulate lesions faster than whites. This aggressive disease process in blacks is associated with reduced remyelination, a brain's ability to repair the protective myelin sheath.
Researchers found that CT scans are more accurate than MRI in ruling out coronary artery disease. Extended-duration transdermal nicotine therapy was also shown to increase smokers' chances of quitting successfully.
A new study found that adding a contrast agent to MRI improves the accuracy of detecting lymph node metastases. The researchers concluded that incorporating contrast enhancement in malignancy criteria improves diagnostic test accuracy, and histopathologic examination should still be used as a gold standard.
A recent study published in the American Journal of Roentgenology found that acute adverse reactions from gadolinium-based contrast agents used during MRI are rare, occurring in only 0.16 percent of all administrations. The majority of reactions were mild, while six moderate and two severe reactions were reported.
Researchers used MEG to distinguish between neural activity of PTSD patients and healthy controls with over 90% accuracy. A positive association was found between prediction certainty and symptom severity, suggesting potential use in gauging disorder levels.
In a study published in World Journal of Gastroenterology, researchers found that MRI-enterography revealed incidental findings outside the small intestine in 25% of patients with suspected or known Crohn's disease. These extra-intestinal manifestations were rare and did not necessarily require additional examinations.
Researchers at Northwestern University have developed a gadolinium-nanodiamond complex that dramatically enhances image contrast in magnetic resonance imaging (MRI). The complex shows a significant increase in relaxivity, resulting in vivid image contrast.
The new SBI and ACR recommendations suggest that breast cancer screening should begin at age 40, with annual screening recommended for average-risk patients. High-risk patients may start screening as early as age 30. The guidelines aim to reduce mortality rates from breast cancer through earlier detection.
A study found that only 51.6% of eligible women completed a screening MRI, with claustrophobia as the primary reason for nonparticipation. Alternative methods like ultrasound may be considered for high-risk women who cannot undergo MRI screening.
Certain cardiac pacemakers may inadequately stimulate a patient's heart while undergoing an MRI scan due to the magnetic pulses mixing with electronic pulses from the pacemaker. This can lead to incorrect or absent stimulation and is potentially dangerous for the patient undergoing the scan.
A Rice University team developed a single nanoparticle that can be tracked in real-time with MRI as it targets cancer cells, tags them with fluorescent dye and kills them with heat. This all-in-one particle is a promising example of theranostics, a growing field developing technologies for diagnosis and treatment in one procedure.