Articles tagged with Radiography
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.
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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.
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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.
Researchers analyzed 4,369 chest radiographs from 313 SARS patients and found that lung opacification levels on the seventh day could predict fatal outcomes. Patients with greater than 20% lung opacification were more likely to die from SARS, while those with less than 10% had a higher survival rate.
Researchers found a strong correlation between a peptide fragment of type II collagen (CTX-II) and the prevalence and progression of osteoarthritis (OA), particularly at the knee and hip. CTX-II levels were associated with increased risk and severity of OA, including rapid joint destruction.
A study of 1,325 patients revealed that CT pulmonary angiograms expose female breasts to at least 2.0 rads per breast, equivalent to 10-25 mammograms or 100-400 chest radiographs. Researchers recommend reducing radiation exposure by selecting suitable patients, using alternative imaging methods, and manipulating scan parameters.
The study found that dedicated CT technology detected lower spine fractures in 36 patients, while plain radiographs only detected them in 28. Transverse process fractures were also identified more accurately on MDCT. The benefits of using MDCT include improved patient care and cost savings.
A population-based case control study found a significant association between exposure to diagnostic radiography during routine dental care and low birth weights in full-term babies. The study suggests that radiation may affect neurohormonal mechanisms in the head and neck region, leading to potential health effects on pregnancies.
A prospective study in Botswana found that only 1.8% of asymptomatic HIV-infected outpatients with preventive therapy developed TB, rendering routine chest radiography unnecessary for screening in settings where signs and symptoms can be effectively identified.
Eighty percent of patients treated with combination therapy experienced no radiographic progression, compared to 68% on ENBREL alone and 57% on methotrexate. Combination therapy and ENBREL monotherapy provided significant inhibition of joint damage.
A new study published in the Journal of the American Medical Association found that rapid MRI did not improve clinical outcomes or save money for patients with low back pain. In fact, it may increase costs due to an increased risk of surgical interventions.
A study reveals that CT scans are more effective than plain film radiography in diagnosing cervical spine trauma. The research found a higher incidence of true positive findings with CT (5.85%) compared to plain film (.50%), as well as lower costs due to reduced examination time.
The study found that physician judgment had a sensitivity of 89% and specificity of 26% for the Ottawa rules, and 80% and 59% for the Leiden rule. With structured data collection, physicians' judgment was similar to existing ankle rules in terms of sensitivity and ability to safely reduce radiographic examinations.
Researchers at Cornell University's Laboratory of Plasma Studies have developed a new X-pinch imaging technique that produces extremely high-resolution images of minute objects. The technique, which uses powerful electrical currents to create plasma, has been used to image objects as small as house fly hairs and even living ants.
A study found that miniature chest radiography is the most effective way to detect active tuberculosis in jails due to its efficiency and low radiation dose. This method can identify 200 cases per 100,000 inmates or higher, significantly higher than the general U.S. population rate of 6.8 cases per 100,000 persons.
A new digital X-ray technology being studied at Thomas Jefferson University Hospital has the potential to replace film-based radiography, reducing healthcare costs and improving patient care. The technology offers enhanced image quality, lower radiation doses, and increased efficiency for radiologists.
Researchers detected calcifications in the carotid arteries of 5% of new patients, with many having multiple risk factors for atherosclerosis. The findings suggest that routine dental X-rays could be a valuable tool in detecting patients at risk for stroke.