Articles tagged with Radiology
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.
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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.
A recent study using MRI scans has identified new types of injuries in young gymnasts, including necrosis of the bones in their knuckles. The research suggests that these injuries may develop into early osteoarthritis if left untreated, highlighting the need for changes in practice routines to reduce joint stress.
A study published in the Journal of Ultrasound in Medicine found that portable ultrasound was clinically beneficial in urban and rural settings in Ghana. The technology offered a range of applications, including musculoskeletal, obstetrical, and abdominal examinations, with 81% of performed ultrasounds being abnormal.
A study published in Clinical Oncology found that funding decisions for cancer patients with exceptional circumstances are influenced by their location rather than their health needs. This has led to a postcode lottery, where some patients receive funding while others do not, despite similar circumstances.
A study found a significant increase in radiology tests in managed care settings, with an average cost per patient increasing by $214 over 10 years. Newer technologies like CT and MRI scans also saw a rise, but their use was not as efficient as expected.
A recent study found MDCT scans correctly identified 29 of 30 complications in patients with airway stents. The non-invasive imaging test has the potential to replace bronchoscopy for routine surveillance and early detection of complications.
A study found cone-beam CT to be highly sensitive and specific in detecting cortical defects before and after percutaneous vertebroplasty, comparable to MDCT. Cone-beam CT also identified cement leakages without the need for additional radiation exposure.
A new theoretical model has been developed to estimate radiation skin doses during CT-guided interventional procedures, which can be used in real-time to optimize techniques and minimize the risk of radiation injuries. The results indicate accurate estimation of peak skin doses using this model.
A study found that surgical removal of small colon polyps is not necessary due to low risk of cancer development. The study suggests that imaging surveillance for isolated small polyps detected during CT colonography may be an alternative to unnecessary colonoscopy procedures.
A new study published in Radiology found that 3-D power Doppler ultrasound can accurately distinguish between malignant and benign breast masses. The technique detects higher flow velocities in malignant tumor-feeding vessels, making it a potentially useful tool for breast cancer diagnosis.
A recent study by the American College of Radiology found that core needle breast biopsies are safe for patients taking anticoagulants. The study showed that lumps or bruising occurred in 34% of women taking blood thinners, compared to 26.5% of those not on medications.
A study found that CT scans changed the initial treatment plans of emergency physicians in over 29% of patients with suspected appendicitis. This alteration was largely due to CT results ruling out appendicitis when surgical consultation was initially recommended, reducing unnecessary surgeries.
Researchers used ultrasound imaging to measure carotid artery plaque density and predict cardiovascular events. Patients with reduced plaque density had a significantly increased risk of near-future adverse events, highlighting the potential for this non-invasive technique to improve cardiovascular disease management.
Endovascular repair, using stent grafts to fix blood vessel injuries, is shown to save more lives and decrease chance of paraplegia compared to open surgery. This minimally invasive technique reduces mortality rates by half and diminishes risk of paraplegia by 75 percent.
The Kenneth B. Schwartz Center and ASTRO are partnering to raise awareness of cancer survivorship through the Survivor Circle exhibit at ASTRO's Annual Meeting. The center supports compassionate healthcare and education, and will participate in the exhibit to promote its mission.
Researchers found iTunes can efficiently manage PDF files for radiologists, providing richer information than conventional textbooks. The study's lead author, Li Jun Qian, MD, discovered that drag-and-drop functionality allows users to easily search, rate, and organize articles.
Research at the University of Washington suggests that faulty brain connections might be responsible for social impairments in adults with autism. The study used functional magnetic resonance imaging to compare brain activity in individuals with high-functioning autism and typically developed adults while looking at faces.
A new magnetic resonance imaging unit will be put into operation in Malawi, allowing physicians to assess malaria damage before a child has died and diagnose a wide range of illnesses. The machine will also enable radiologists to send images to the US for second opinions and serve neighboring countries with no MRI machines.
Researchers at Beth Israel Deaconess Medical Center have developed a new noninvasive method to detect and measure noncalcified plaque using voxel analysis and MDCTA. The technique was shown to be equally effective as catheter coronary angiography in identifying patients at risk for heart disease.
A recent study found that self-referring physicians account for the majority of increases in diagnostic imaging ordered for privately insured patients. This trend is driven by fee-for-service reimbursement, which incentivizes physicians to perform scans in their own offices. The use of advanced imaging technologies has raised concerns ...
Researchers at Weill Cornell Medical College found that 3T MR-guided focused ultrasound effectively reduces symptoms of uterine fibroids in 20 patients, with minimal side effects. The non-invasive procedure allows for quick recovery times and eliminates risks associated with surgery.
Researchers at the University of Southern California found that combined positron emission tomography (PET) and computed tomography (CT) imaging yields greater accuracy when evaluating response to radiation therapy. This method helps identify complete responders and reduces the need for unnecessary chemotherapy treatments.
A multicenter trial found that uterine artery embolization (UAE) is a viable alternative to hysterectomy for women with symptomatic fibroids. After two years, patients who underwent UAE reported health-related quality of life equal to those who had undergone hysterectomy.
A study by Charlotte Radiology found that single reading of screening mammograms with computer-aided detection (CAD) is more efficient and yields higher sensitivity than double reading. The use of CAD resulted in a lower recall rate compared to double reading, making it an effective alternative for increasing sensitivity.
Using breast shields during pediatric chest MDCT reduces radiation dose and minimally increases image noise. The study found that shielding alone reduced the dose by 26%, while combining shielding with automatic tube current modulation (ATCM) reduced it by 52%.
A multi-institutional study found PET more reliable than CT in characterizing lung nodules as malignant. PET's superior specificity led to correctly classifying 58% of benign nodules misclassified on CT.
A new study published in Radiology found that digital mammography is more accurate than film mammography for women under 50 with dense breasts. The Digital Mammographic Imaging Screening Trial (DMIST) compared the accuracy of both methods in different subgroups, confirming improved diagnostic accuracy for digital mammography in pre- an...
A novel treatment for DVT uses a fiber-binding agent to clear clots rapidly and safely, with 90% of patients experiencing complete resolution of symptoms after six months. The therapy reduces the risk of bleeding and post-thrombotic syndrome, enabling patients to resume normal activity within a week.
A national study found digital mammography performed better than film in pre- and perimenopausal women under 50 with dense breasts. The study, DMIST, also showed improved diagnostic accuracy for digital mammography over film for some subgroups.
A nationwide study found that diagnostic mammogram accuracy depends on the radiologist reading it, with varying sensitivity and false-positive rates. Radiologists based at academic medical centers or spending most time on breast imaging performed more accurately.
A study published in the Journal of the National Cancer Institute found that diagnostic mammogram readings vary extensively by radiologist, with no explanation for the variation. Radiologists' performance was influenced by their experience, affiliation, and time spent interpreting mammograms.
A recent study found that 318 of 321 benign-appearing adrenal masses were confirmed to be clinically insignificant. The study showed no malignant adrenal lesions, even among patients with other malignancies elsewhere.
A new minimally invasive procedure using ultrasound-guided percutaneous therapy significantly reduces pain and restores mobility in patients with calcific tendonitis of the rotator cuff. The procedure, which takes about an hour to perform, has been shown to provide long-lasting relief from symptoms.
Computed tomography (CT) autopsies have been shown to be a sensitive tool for detecting injuries and cause of death in victims of blunt trauma. In a study comparing CT with conventional autopsy, CT accurately identified the cause of death in all 14 blunt trauma cases and five out of six penetrating wounds.
A study found that approximately 27% of obese gastric bypass patients weighing over 450 pounds were denied standard diagnostic imaging due to weight restrictions. This can lead to delayed diagnosis and compromised patient care.
A new automated dental radiograph matching system can reduce the task of forensic experts by up to 95% and produce matches at an average rate of less than four seconds. The system uses Phase-Only Correlation technology to align images and measure their similarity, resulting in a significant reduction in time spent on identification.
A study of 500 consecutive children admitted to Arkansas Children's Hospital following ATV accidents found a high incidence of head, spinal, lung, and extremity injuries. Many victims suffered permanent disabilities or fatalities, highlighting the risks associated with ATV use in children.
A five-year study will evaluate the performance of chest X-ray CAD in identifying hard-to-detect lung cancers, aiming to improve patient survival rates. The study, funded by the State of Ohio, will involve 9,000 test subjects and assess the software's ability to identify actionable pulmonary nodules.
Researchers at Tohoku University found that monitoring total entrance skin radiation dose can accurately determine maximum radiation skin dose during coronary angioplasty. This allows radiologists to avoid skin injury to patients, a major disadvantage of the procedure.
Researchers found that computer-aided detection (CAD) combined with multi-detector computed tomography (MDCT) improves radiologists' ability to detect solid lung nodules. CAD successfully matched 91.3% of nodules detected in both exams, and reduced reading time for radiologists.
A study from Massachusetts General Hospital found that physicians who self-refer or refer patients to colleagues in their own specialty are more likely to order imaging studies, with variations ranging from 12% to over 200%. This economic motivation may lead to unnecessary referrals and excess utilization of imaging procedures.
Demand for Spanish-language cancer web materials has quadrupled, with OncoLink en español seeing a significant increase in unique visitors. However, limited internet access and different search patterns among Spanish-speaking users highlight the need for tailored content to meet their needs.
Researchers found that screeners are more accurate in visual searches when allowed to correct their choices, but errors rise for rare targets. The study suggests improving airport security and cancer screening by addressing execution errors and perception issues separately.
A new technique developed by UC radiologists uses multi-detector computed tomography (CT) scanners to capture images of chest veins. This approach allows for better diagnosis of venous diseases by compensating for the extra time it takes contrast solution to reach the veins.
Researchers found 151 patients had vascular findings not related to renal arteries, including mesenteric artery stenosis and aortic atherosclerosis. Additionally, 220 patients had non-vascular benign lesions, while malignancies were detected in 10 cases.
A recent study examined the discrepancy rate of emergency diagnostic imaging exams interpreted by residents after hours and found that well-trained and supervised residents can interpret studies safely. The major discrepancy rate was 2.6%, with only a miniscule negative clinical effect found in 0.3% cases.
Researchers have identified a new abnormality related to disease progression and disability in patients with multiple sclerosis (MS). The study found that T1-weighted MR images of the brains of MS patients often depict bright areas called hyperintense lesions, which were more likely to be present in patients with secondary-progressive MS.
A recent study found that a split-bolus CT urography technique can reduce both radiation dose and number of images produced, while maintaining high sensitivity and specificity. This new method has the potential to replace traditional excretory urography protocols for diagnosing urinary tract abnormalities.
The article challenges the routine use of ultrasound as a screening procedure for chromosome abnormalities, suggesting that foetal 'nuchal thickness' measurements are not supported by scientific data. This could lead to the 'loss' of normal babies in attempts to prevent Down's syndrome and trisomy 18.
A study found that providing informational handouts to parents about CT radiation risks can improve their understanding, increasing awareness of the potential increased risk of cancer related to pediatric CT. Parents became less willing to undergo CT if their doctor believed it was equally effective to observation.
A recent study reveals radiologists can diagnose clinically unseen venous thromboembolic disease in cancer patients earlier by closely examining CT scans of the thorax, abdomen, and pelvis. The study identified 23 unsuspected iliofemoral DVTs and four common iliac vein involvements among 736 patients.
MDCT angiography is highly accurate in depicting intracranial aneurysms, outperforming digital subtraction angiography (DSA) in diagnostic accuracy. The technique can quickly determine the possibility of using minimally invasive treatment rather than open surgery.
Researchers found structural and functional abnormalities in specific brain regions associated with chronic auditory hallucinations in schizophrenic patients. The study used MRI to identify biological markers for treatment and monitor patient response.
A recent study found that magnetic resonance CAD significantly enhances the diagnostic accuracy of liver fibrosis, outperforming experienced radiologists in detection and grading.
A study published in the Journal of the National Cancer Institute found that adding readings by non-physician technologists to standard mammograms read by two radiologists increased breast cancer detection rates by 6.8%. This improvement was achieved with a minimal increase in false positives.
A study found that recovering alcoholics who smoked showed lower improvement in tests of memory, reasoning, judgment, and visual/spatial coordination compared to non-smokers. Smokers demonstrated inferior performance in auditory/verbal learning and memory, cognitive efficiency, executive skills, processing speed, and working memory.
Researchers found that sonographically-guided alcohol injections showed a high success rate and were well-tolerated by patients with Morton's neuroma. The study reported partial or total symptom improvement in 94% of patients, with 84% becoming totally pain-free.
A recent study found that acute allergic-like reactions to newer nonionic contrast agents are rare in children, occurring in only 20 out of 11,306 pediatric IV administrations. The study confirms the safety and better understands the risks of these agents in children.
A study published in Radiology found that MDCT can aid forensics teams in determining if a person has drowned by demonstrating airway froth and sediment. The procedure may provide support for the diagnosis of drowning when other causes have been excluded.
A study published in Radiology found that MRI can predict full or partial recovery of patients with acute spinal cord injuries by assessing MR images within 48 hours. The severity of MSCC, bleeding, and cord swelling are key indicators of a poor prognosis, while their absence indicates a good chance for neurological recovery.
A multicenter clinical trial found that magnetic resonance-guided focused ultrasound surgery (MRgFUS) effectively shrinks uterine fibroids and significantly relieves symptoms in women. The optimized protocol allowed treatment of a greater fibroid volume, resulting in even greater symptomatic relief.