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.
A study of 58 breast cancer patients found that initial tumor volume and changes in tumor volume during chemotherapy are strong predictors of recurrence-free survival. MRI measurements can help tailor treatment strategies for individual patients.
A Mayo Clinic case series reveals a link between long-term welding and neurological impairment, including Parkinsonian syndrome, multifocal myoclonus, vestibular-auditory dysfunction, and mild cognitive impairment. The study emphasizes the importance of adequate fume protective measures to prevent damage from manganese exposure.
A new CAD system has improved the accuracy of breast MRI analysis, allowing radiologists to better determine cancer lesion sizes. The system reduced analysis time by an average of 7 minutes compared to standard software.
A new MRI technique called isotropic imaging shows promise in detecting meniscal tears and other knee injuries, potentially avoiding knee surgery altogether. With an accuracy rate of 96%, the technique could be used to determine if patients need immediate surgery or can benefit from rehabilitation first.
Researchers have developed a whole-body MRI technique that can scan patients' entire bodies in under 20 minutes for cancer spread to bone, detecting 100% of cases. This method offers better sensitivity and specificity than other methods, making it a promising tool for non-invasive cancer diagnosis.
Research found that MRI was nearly twice as sensitive as X-ray mammography in detecting breast cancer in high-risk women. Combining both methods increased detection to 94%. Women with the BRCA1 gene mutation saw a significant boost in tumor detection, making MRI an effective screening tool.
Researchers use ferritin as a reporter gene to track genetic modifications in tumor cells, enabling monitoring of gene therapy's progress. This technique has far-reaching implications for diseases like diabetes, where genes can be tagged and tracked using MRI.
Researchers found that leptin replacement treatment altered brain structure and reduced cravings for people with an obesity gene. The study suggests new potential treatments for weight-related issues.
Researchers used brain imaging to map abnormalities in living patients with Williams syndrome, showing exceptional language skills. The findings shed light on the genetic control of human cortex development and help predict the syndrome's progression.
Researchers developed a functional diffusion map using MRI scans to track water diffusion in the brain, finding that changes predicted tumor response 10 weeks before traditional techniques. This method could spare patients from ineffective treatment and allow doctors to switch to more effective therapies.
UNH has launched its second spinout company, Xemed LLC, backed by three new NIH grants to commercialize a lung imaging technology that could benefit millions suffering from chronic obstructive pulmonary disease. The technology allows MRI to produce a clear picture of the lungs' interior, enabling doctors to see which parts are affected.
Researchers created a platform technology that can be adapted for various tissue types and preclinical uses, enabling real-time monitoring of gene expression. This approach uses magnetic resonance imaging (MRI) to non-invasively image cells at high resolution, providing insights into disease mechanisms.
Johns Hopkins researchers have found that modern implanted heart devices are safe for use in magnetic resonance imaging (MRI) machines. The team has also developed new guidelines for their use, making MRI scans more available to people who may benefit from early detection of cancer and other diseases.
New Jersey Institute of Technology's start-up company Supertron has developed a cryogenic coil to improve Magnetic Resonance Imaging (MRI) scanners for small animal imaging. This new coil will enhance installed MRIs, enabling them to produce cleaner and clearer images at an affordable price.
A UW-Madison study found that autistic children's amygdalas light up during non-threatening face gazing, stunting brain activity in the fusiform region. This challenges existing notions of facial processing in autism, suggesting a more complex relationship between social interaction and brain function.
A new study finds that MRI is more accurate than current standards in assessing the effectiveness of neoadjuvant chemotherapy for breast cancer. The imaging technique correctly identified the presence of residual tumor in 71% of cases, while sonography and clinical examination were less accurate.
A study by American College of Radiology found MRI to be useful in assessing suspected breast cancer patients, detecting additional cancers not visible on mammography or sonography. The use of computer-assisted diagnosis improved accuracy and led to recommended mastectomies for some patients.
Researchers have developed an MRI approach using shutter speed analysis, which provides more accurate information on breast cancer detection. This method distinguishes between malignant and benign tumors, improving diagnosis and treatment outcomes.
The study used combined PET and MRI to track cocaine pharmacokinetics in pregnant nonhuman primates. The results showed that cocaine accumulated at the highest levels in the liver, and to a lesser extent in the brain, suggesting a unique anatomy of fetal circulation.
A full-body MRI study found that 21% of healthy patients exhibited signs of atherosclerotic disease and 12% had peripheral vascular disease. The screenings also revealed relevant additional findings in non-targeted organs, raising questions about the benefits and risks of such screenings.
A study published in the American Journal of Roentgenology found that MRI is an excellent choice for diagnosing pregnant women with abdominal pain due to its high accuracy and safety from radiation. The study analyzed 29 patients and diagnosed 14 different causes of abdominal pain, including appendicitis and ovarian cysts.
Researchers used diffusion-weighted MRI to diagnose Creutzfeldt-Jakob Disease (CJD) in nine human cases at different stages. Early detection was achieved in all cases using this imaging technique. The study highlights the potential of diffusion-weighted MRI for early diagnosis and prevention of CJD transmission.
Researchers discovered two distinct areas in the medial frontal cortex associated with free choice and conflict. This discovery may explain why people with damage to this area seem incapable of making decisions, and has implications for our understanding of free will and decision-making processes.
A recent study found that very early treatment with infliximab plus methotrexate reduced synovitis and bone erosions in patients with rheumatoid arthritis. The treatment showed sustained benefits even after one year, improving function and quality of life.
Scientists have developed a new MRI technique to study brain anatomy in live crayfish, revealing complex anatomical structures and enabling repeated imaging. This breakthrough technology provides a powerful tool for understanding neurobiology of behavior in invertebrates.
A study found breast MRI had a high sensitivity of 88.1% for detecting breast cancer, but moderate specificity of 67.7%. The imaging modality did not significantly improve outcomes for patients with mammographically or clinically suspicious lesions.
A study published in JAMA found that MRI can accurately detect breast cancer with a high sensitivity rate of 88.1%, but its effectiveness decreases when ruling out malignancies. The technology is most beneficial for patients with difficult-to-interpret mammograms.
A study found that radiologists can identify potential problems with MRI, allowing for early treatment and prevention of injuries. Orthotics were provided to two athletes, preventing surgery and enabling them to play the entire season.
A study of 109 patients found that combining MRI and ultrasound can significantly improve quality of life scores for women with uterine fibroids. The procedure is completely non-invasive and safe, with few side effects.
Researchers successfully used iron-labeled neural stem cells to repair damaged myelin in the brains of mice with experimental autoimmune encephalomyelitis, an animal model of multiple sclerosis. This method could potentially monitor and track transplanted cells in human patients if stem cell therapy becomes available.
An international trial found that breast MRI significantly detected more cancers than mammography in high-risk young women with dense breast tissue. The study recommended MRI as a supplement to mammography for this group, improving cancer detection and potentially reducing mortality rates.
A study of 26 male college basketball players found that MRI screenings can help identify at-risk players and prevent injuries. Custom-fit shoe supports and orthotics can provide relief and prevent further debilitating injuries.
Using MRI guidance, doctors can target and freeze liver tumors with cryotherapy, achieving high success rates and minimal scarring. The non-invasive procedure results in quicker recovery times and shorter hospital stays.
Researchers used MRI to study salt crystallisation in model systems and found that it causes damage in materials with small pores. The study provides new insights into the mechanism behind salt damage in building materials and stones.
Researchers used DSC MRI to measure blood volume in eight patients with cerebral abscesses and four with malignant brain tumors. The study found no overlap in blood volume between the two groups, allowing for accurate distinction between abscesses and tumors.
A study by Chelsea S. Kidwell and colleagues found that MRI detected acute bleeding not seen on CT scans, improving detection rates for chronic hemorrhage and microbleeds. The results suggest that MRI may be superior to CT as the sole imaging technique for acute stroke diagnosis.
Intraoperative MRI improved tumor removal by detecting additional tissue that needed to be removed, altering surgical strategy in 27.5% of cases. High-field MRI provides better image quality and reduced scan time, but its high cost is a limiting factor.
A study of 236 women with BRCA1 and BRCA2 mutations found that MRI screenings detected 77% of cancers, compared to 36% for mammography. The addition of annual MRI and ultrasound to mammography improved the sensitivity of breast cancer surveillance.
A study of healthy individuals aged 60-64 found a significant relationship between high homocysteine levels and changes in deep white matter hyperintensities in the brain, which may be related to mild cognitive impairment. However, HCY levels were not associated with brain atrophy.
Researchers at Los Alamos National Laboratory have developed a method to exploit spin noise in magnetic atoms to perform detailed magnetic resonance imaging. By using laser-based Faraday rotation, the scientists measured the spectrum of spin noise in rubidium and potassium atoms, revealing their complete magnetic structure.
Scientists at the University of Pennsylvania are developing innovative techniques to study biomolecules within cells and living systems. They have created
Reduced gray matter volume, particularly in language centers, is associated with dyslexia. The study supports the effectiveness of intensive reading remediation therapy.
Researchers have developed a non-invasive method to detect and trace elevated levels of an enzyme linked to plaque instability. The technique uses magnetic resonance imaging (MRI) to pinpoint plaques that are most likely to rupture, potentially allowing doctors to prioritize treatment.
A study published in the American Journal of Roentgenology found that MRI revealed more extensive fractures in patients with greater trochanteric fractures than X-ray imaging alone. This allowed for better treatment planning and informed decisions on surgical versus nonsurgical treatment.
Physiology aims to appeal to a broader audience with innovative features and artwork, showcasing the most up-to-date physiological research. The journal's design and editorial team are committed to making the content more accessible and readable.
The new magnet features a uniform field of 21.1 Tesla in a volume 64 times larger than typical NMR systems, allowing for a wider range of scientific experiments. Scientists can now explore new avenues in chemical and biomedical science using this unique national resource.
A new study suggests that a stroke-prevention strategy for kids pioneered at MCG is working. The program, which involves regular blood transfusions and screening using transcranial Doppler, has led to an 80% decline in strokes among California children with sickle cell disease.
Fetal MRI is less dependent on variables like amniotic fluid volume and fetus position compared to sonography, making it a more reliable method for detecting cleft lip and palate. Soft palate defects can also be visualized on fetal MRI, which is essential for predicting potential complications after birth.
A recent imaging study at Carnegie Mellon University has discovered persistent sex-based differences in brain structures of mice entering adulthood, as revealed by high-resolution magnetic resonance microscopy. The findings provide a more accurate representation of how circulating hormones affect brain development compared to human ima...
A recent study using diffusion weighted imaging found small brain lesions appearing on MRI scans of amnesiac patients within hours and days of onset. The lesions were all located in the hippocampus, a key area for memory functions, suggesting a possible cause for transient global amnesia.
A new study published at ASCO finds that MRI is more effective than mammography in detecting the number and size of breast cancer tumors. The research involved over 1000 women across 17 sites, revealing that MRI detected additional cancerous lesions in 56 women, while mammograms only identified 17.
A decade-long brain development study using MRI scans shows that higher-order brain centers, such as the prefrontal cortex, mature later in life. Gray matter wanes in a back-to-front wave as neural connections are pruned, with areas performing basic functions maturing earlier.
Researchers studied 40 patients with 42 adrenal masses and found that MRI was more sensitive than CT in characterizing lipid-rich adenomas. The study's findings suggest that MRI may be the preferred imaging modality for detecting adrenal adenomas, particularly in cases where symptoms are present or a history of cancer is known.
A new study found that MRI is more effective than PET in detecting small liver metastases, with an accuracy rate of 75.5%, compared to PET's 64.1%. The study used a custom liver-specific contrast agent, which improved image resolution and detection of smaller lesions.
A study found that MRI scans can detect breast cancer in 70% of cases at stage 1, and in 62% of cases without a mass. Most women who underwent the test chose mastectomy due to early detection.
A new MRI-guided breast biopsy system has been developed, showing that it is safe and efficient for retrieving tissue under MRI guidance. The procedure was found to be technically successful with no complications in all 38 biopsies performed on 28 patients.
A new CAD system has shown promise as an adjunct to breast MRI in identifying benign lesions. The study found that the CAD system could help reduce biopsy rates by 18% if proven effective in larger studies.
MRI is a safe imaging option for pregnant patients, as it uses magnetic fields and radiofrequency pulses instead of ionizing radiation. The study found MRI accurately depicted several disease processes, including appendicitis and uterine fibroids.
According to the study, MRI is superior to ultrasound in predicting cerebral palsy in preterm infants. Ultrasound should be used as the first imaging technique due to its availability and lower cost.
Researchers have developed a technique called 2D CSI MRS that uses chemical signatures to distinguish between tumor recurrence, normal tissue, and treatment-related changes in the brain. This method has shown significant differences in chemical ratios for recurrent tumors versus treatment-altered tissue.