Popular Computed Tomography News and Current Events | Page 25

Popular Computed Tomography News and Current Events, Computed Tomography News Articles.
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Benefit of PET or PET/CT in bone and soft tissue tumors is not proven
Because of a lack of conclusive studies, it can currently not be assessed how helpful positron emission tomography alone or in combination with computed tomography is for patients with bone and soft tissue tumours. This is the conclusion of a report by the IQWiG, Cologne, which was published in February 2013 and for which an English-language summary is now available. (2013-03-06)

Study finds air pollution and noise pollution increase cardiovascular risk
Both fine-particle air pollution and noise pollution may increase a person's risk of developing cardiovascular disease, according to German researchers who have conducted a large population study, in which both factors were considered simultaneously. (2013-05-20)

Fossils suggest earlier land-water transition of tetrapod
New evidence gleaned from CT scans of fossils locked inside rocks may flip the order in which two kinds of four-limbed animals with backbones were known to have moved from fish to landlubber. (2009-04-17)

Study finds problems with reviewing medical images from portable media
Radiologists and referring clinicians frequently use portable media (CDs, DVDs) to review patient medical images acquired at outside imaging centers, including magnetic resonance imaging and computed tomography scans, but issues regarding access, importability, and viewing of these portable media exist, according to a study in the January issue of the Journal of the American College of Radiology. (2011-01-04)

Ohio Third Frontier awards $2.5 million for imaging research in Cleveland
The Ohio Third Frontier Commission has awarded $2.5 million in research grants to advance the Philips Healthcare Global Advanced Imaging Innovation Center, a collaboration among Case Western Reserve University, University Hospitals (UH) Case Medical Center and Philips Healthcare. The research projects are part of $30 million in funding awarded throughout the State of Ohio this week by the Ohio Third Frontier Commission. (2011-09-06)

Is it depression or dementia? Brain SPECT imaging helps distinguish them
Does a patient have depression or a cognitive disorder (CD) such as Alzheimer's disease or both? Since both disorders have overlapping symptoms, how can a clinician tell them apart to make an appropriate diagnosis? In a new article published in the Journal of Alzheimer's Disease, researchers have found that single photon emission computed tomography, or SPECT, can help to distinguish between these diagnostic categories. (2017-02-15)

Algorithm reduces use of CT scans when diagnosing children with appendicitis
Implementation of an algorithm aimed to diagnose pediatric patients with suspected appendicitis reduces the utilization of computed tomography scans, without affecting diagnostic accuracy, Mayo Clinic Children's Center researchers have found. The study was recently published in the journal Surgery. (2014-07-31)

Study examines why colon cancer is more deadly in pediatric and young adult patients
Colon cancer is more likely to be lethal in children and young adults than middle-aged adults. (2020-02-21)

Mount Sinai physicians first in US analyzing lung disease in coronavirus patients
Findings from CT scans of COVID-19 cases from China provide new insight that could lead to quicker diagnosis. (2020-02-26)

Virtual colonoscopy option could improve colorectal cancer screening rates, patient survey suggests
Providing computed tomography colonography -- otherwise known as virtual colonoscopy -- as an alternative to conventional colonoscopy could improve colorectal cancer screening rates, according to a study in the November issue of the American Journal of Roentgenology. (2010-10-21)

Jacuzzi danger?
Jacuzzi's could be dangerous for people with high blood pressure or for individuals with renal disease requiring dialysis, suggest authors of a letter in this week's issue of The Lancet. (2003-02-06)

Coupling head and neck cancer screening and lung cancer scans could improve survival
Adding head and neck cancer screenings to newly recommended lung cancer screenings would likely improve early detection and survival, according to a multidisciplinary team led by scientists affiliated with the University of Pittsburgh Cancer Institute. (2015-01-09)

ASCO: One step closer to a breath test for lung cancer
Results of a University of Colorado Cancer Center study presented at the 50th Annual Meeting of the American Society for Clinical Oncology show that a test of organic compounds in exhaled breath can not only distinguish patients with lung cancer from patients with chronic obstructive pulmonary disease, but can also define the stage of any cancer present. (2014-05-31)

Combination therapy does not appear to benefit cardiac patients before heart catheter procedure
Patients with acute myocardial infarction (MI - heart attack) who are referred for percutaneous coronary intervention (such as angioplasty and stent placement in the coronary artery) do not have a reduction in the amount of damaged heart tissue when administered two drugs compared with a single drug to restore blood flow, according to a study in the February 25 issue of The Journal of the American Medical Association (JAMA). (2004-02-24)

New diagnostic imaging techniques deemed safe in simulations
Gamma and neutron imaging offer possible improvements over existing techniques such as X-ray or CT, but their safety is not yet fully understood. Using computer simulations, imaging the liver and breast with gamma or neutron radiation was found to be safe, delivering levels of radiation on par with conventional medical imaging, according to researchers at Duke Medicine. (2014-06-04)

System provides clear brain scans of awake, unrestrained mice
Researchers have shown that the AwakeSPECT system can obtain detailed, functional images of the brain of a freely moving, conscious mouse. (2013-04-09)

UT Southwestern orthopaedic surgeons first in area to use knee replacements designed for women
Orthopaedic surgeons at UT Southwestern Medial Center are the first in North Texas to use knee implants specifically designed to fit a woman's anatomy. (2006-07-18)

Cardiac imaging breakthrough helps determine diminished blood flow to the heart
Research presented at SNM's 57th Annual Meeting is challenging the typical paradigm used to determine whether heart patients will benefit from invasive procedures like stent-placement or open-heart surgery. (2010-06-07)

UT study reveals inaccuracies in cardiac PET-CT imaging, finds fixes
A study by K. Lance Gould, M.D., professor in the Division of Cardiology at the UT Medical School at Houston -- published today on the cover page of the Journal of Nuclear Medicine -- says PET-CT scanners with standard commercial software designed to provide images of the heart are falsely indicating coronary artery disease in as many as 40 percent of patients. (2007-07-03)

Researchers develop faster and cheaper cardiac imaging test for developing countries
Researchers in the UK and Peru have developed a faster and cheaper cardiac imaging test that can be used in developing countries, according to the results of the INCA-Peru study presented today at EuroCMR 2017. The scan is three times faster, less than one-fifth of the cost, and changed clinical management in 33 percent of patients. (2017-05-26)

Unfolding the folding mechanism of ladybug wings
Japanese scientists have figured out how ladybugs fold their wings by transplanting a transparent artificial wing onto the insect and observing its underlying folding mechanism. The study's findings, which help explain how the wings can maintain their strength and rigidity during flight, while becoming elastic for compact folding and storage on the ground, provide hints for the innovative design of a wide range of deployable structures, from satellite antennas to articles for daily use like umbrellas and fans. (2017-05-15)

Calcium in arteries influences heart attack risk
Patients without calcium buildup in the coronary arteries had significantly lower risk of future heart attack or stroke despite other high risk factors such as diabetes, high blood pressure, or bad cholesterol levels, new research from UT Southwestern cardiologists shows. (2017-08-08)

Sudden hearing loss: Update to guideline to improve implementation and awareness
The American Academy of Otolaryngology-Head and Neck Surgery Foundation published the Clinical Practice Guideline: Sudden Hearing Loss (Update) today in Otolaryngology-Head and Neck Surgery. Sudden sensorineural hearing loss (SSNHL) affects five to 27 per 100,000 people annually, with about 66,000 new cases per year in the United States. (2019-08-01)

Approximating a kernel of truth
Machine learning tasks using very large data sets can be sped up significantly by estimating the kernel function that best describes the data. (2020-03-10)

Rensselaer-developed algorithm accurately predicts COVID-19 patient outcomes
In research recently published online in Medical Image Analysis, a team of engineers demonstrated how a new algorithm they developed was able to successfully predict whether or not a COVID-19 patient would need ICU intervention. This artificial intelligence-based approach could be a valuable tool in determining a proper course of treatment for individual patients. (2020-11-23)

Study: Secondhand smoke linked to common nasal and sinus condition
Nearly 40 percent of chronic rhinosinusitis diagnoses are linked to secondhand smoke, according to a Henry Ford Health System study. Researchers found that people are at increased risk for developing rhinosinusitis from exposure to secondhand smoke at home and public places like bars and restaurants, but that the risk is even higher at work and at private social settings. (2010-04-19)

ACR statement on cancer study regarding patient anxiety from CT lung cancer screening
Anxiety regarding inconclusive cancer screening test results among some patients is real and is only natural. However, as evidenced by Gareen et al., published July 25 in Cancer, the incidence and effects of anxiety associated with false positive or other results of computed tomography lung cancer screening exams are far less than claimed by some in the medical community. (2014-07-25)

Mental stress + heart disease: Stronger presence in women under 50
Researchers have found that women younger than 50 with a recent heart attack are more likely to experience restricted blood flow to the heart (myocardial ischemia) in response to psychological stress. (2013-11-20)

Renal week program looks at new medical causes of kidney disorder
Nephrologists and other health care providers need to be aware of certain medications and diagnostic test preparations that, in some patients, can cause damage to the kidneys, according to a special clinical update being presented at the American Society of Nephrology's 40th Annual Meeting and Scientific Exposition in San Francisco. (2007-11-04)

International registries show PCI rates increased in Japan, US
Japan and the US have seen an increase in percutaneous coronary intervention (PCI) procedures, which is driven primarily by a rise in elective PCIs in Japan compared to non-elective in the U.S., according to a study in the Journal of the American College of Cardiology. Since adoption of large-scale PCI trial results vary internationally, the study sought to analyze large national registries in both countries to illuminate international variation in PCI practice as a foundation for further quality improvement. (2020-09-07)

Cichlid fishes from African Lake Tanganyika shed light on how organismal diversity arises
Lake Tanganyika in Africa is a true hotspot of organismal diversity. Approximately 240 species of cichlid fishes have evolved in this lake in less than 10 million years. A research team from the University of Basel has investigated this phenomenon of ''explosive speciation'' and provides new insights into the origins of biological diversity, as they report in the journal Nature. (2020-11-18)

ER patients prefer ordering physicians discuss risks/benefits of CT with them before ordering exam
The majority of emergency department patients consider having their condition correctly diagnosed with computed tomography (CT) more important than any associated radiation risk. However, two-thirds of patients prefer their ordering physician discuss the risks and benefits of CT with them before ordering the imaging test, according to a study in the November issue of the American Journal of Roentgenology. (2010-10-21)

Annals of Internal Medicine tip sheet for May 7, 2013
Below is information about articles being published in the May 7 issue of Annals of Internal Medicine. The information is not intended to substitute for the full articles as a source of information. Annals of Internal Medicine attribution is required for all coverage. (2013-05-06)

How to use math and a CT scanner to see how trees intercept light
A new trend in plant science research uses mathematical modelling, in combination with new technologies, to better understand the world around us. McGill (Montreal, Canada) researchers are using multi-dimensional statistics in agricultural settings to describe how plants capture light. Their findings have far-reaching implications for food production and environmental protection. (2004-10-14)

Primary care physicians need more education about stroke diagnosis and treatment
The closest emergency room, and not a primary care practice, may be the best place to go for patients experiencing the possible symptoms of a stroke, according to the results of a Duke University Medical Center study. (2000-02-09)

Researchers assess emergency radiology response after Boston Marathon bombings
An after-action review of the Brigham and Women's Hospital emergency radiology response to the Boston Marathon bombings highlights the crucial role medical imaging plays in emergency situations and ways in which radiology departments can improve their preparedness for mass casualty events. (2014-07-15)

Radiation risks should be considered and discussed before heart imaging
Patients should have a clear understanding of why their healthcare provider has recommended a heart imaging test and the potential benefits and risks of the test, including risks related to radiation exposure. Healthcare providers should understand the radiation risks of various tests and consider this risk when deciding to recommend the use of cardiovascular imaging with ionizing radiation. (2014-09-29)

Serum sodium level is a major predictor of a poor prognosis for heart failure patients
Research presented today at the American College of Cardiology's Scientific Sessions in Orlando pinpoints a major marker of a poor prognosis for heart failure, hyponatremia, or a lower than normal concentration of serum or blood sodium. (2005-03-07)

Diagnostic imaging increases among stage IV cancer patients on Medicare
The use of diagnostic imaging in Medicare patients with stage IV cancer has increased faster than among those with early-stage (stages I and II) disease, according to a study published July 30 in the Journal of the National Cancer Institute. (2012-07-30)

Advanced CT scans accurately assess coronary blockages
An ultra-fast, 320-detector computed tomography scanner can accurately sort out which people with chest pain need -- or don't need -- an invasive procedure such as cardiac angioplasty or bypass surgery to restore blood flow to the heart, according to an international study. Results of the study, which involved 381 patients at 16 hospitals in eight countries, are scheduled to be presented at the European Society of Cardiology Congress in Munich, Germany, on Aug. 28. (2012-08-28)

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