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Current Computed Tomography News and Events, Computed Tomography News Articles.
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3-D X-ray film: Rapid movements in real time
How does the hip joint of a crawling weevil move? A technique to record 3-D X-ray films showing the internal movement dynamics in a spatially precise manner and in the temporal dimension has now been developed by researchers at ANKA, KIT's Synchrotron Radiation Source. The scientists applied this technique to a living weevil. From up to 100,000 two-dimensional radiographs per second, they generated complete 3-D film sequences in real time or slow motion. (2014-03-13)

Study finds CT scans predict chemotherapy response in pancreatic cancer
Computed tomography scans routinely taken to guide the treatment of pancreatic cancer may provide an important secondary benefit. According to new research from the University of Texas MD Anderson Cancer Center, the scans also reflect how well chemotherapy will penetrate the tumor, predicting the effectiveness of treatment. (2014-03-11)

Prehospital alerts let stroke patients skip the emergency room
Prehospital stroke alerts by emergency medical services personnel can shorten the time to effective treatment with 'clot-busting' drugs for patients with stroke, according to a report in the March issue of Neurosurgery, official journal of the Congress of Neurological Surgeons. The journal is published by Lippincott Williams & Wilkins, a part of Wolters Kluwer Health. (2014-03-05)

Carotid artery MRI helps predict likelihood of strokes and heart attacks
Noninvasive imaging of carotid artery plaque with MRI can accurately predict future cardiovascular events like strokes and heart attacks in people without a history of cardiovascular disease, according to a new study. (2014-03-04)

New study reveals insights on plate tectonics, the forces behind earthquakes, volcanoes
New research contributes to learning the mechanisms that cause the Earth's plates to move and drift. (2014-03-03)

Special journal issue focuses on radiation dose optimization
To be published online Monday, Mar. 3, a special issue of the Journal of the American College of Radiology focuses on improving the safety of computed tomography exams through careful radiation dose optimization. The issue was guest edited by Rebecca Smith-Bindman, M.D., from the University of California San Francisco and John M. Boone, Ph.D., from the University of California Davis. (2014-03-03)

3-D imaging sheds light on Apert syndrome development
Three-dimensional imaging of two different mouse models of Apert Syndrome shows that cranial deformation begins before birth and continues, worsening with time, according to a team of researchers who studied mice to better understand and treat the disorder in humans. (2014-02-28)

Technique allows for radiation-free detection of tumors, Stanford/Packard study finds
Researchers at the Stanford University School of Medicine and Lucile Packard Children's Hospital Stanford have developed a way to scan young cancer patients' bodies for tumors without exposing them to radiation. The technique could reduce patients' risk of developing secondary cancers later in life. (2014-02-18)

Muscle loss ups mortality and sepsis risk in liver transplant candidates
Japanese researchers have determined that sarcopenia -- a loss of skeletal muscle mass -- increases risk of sepsis and mortality risk in patients undergoing live donor liver transplantation. Findings published in Liver Transplantation, a journal of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society, suggest that post-transplant sepsis was reduced in candidates with sarcopenia who received early nutritional support with a feeding tube, known as enteral nutrition. (2014-02-13)

Pattern of higher blood pressure in early adulthood helps predict risk of heart disease
In an analysis of blood pressure patterns over a 25-year span from young adulthood to middle age, individuals who exhibited elevated and increasing blood pressure levels throughout this time period had greater odds of having higher measures of coronary artery calcification (a measure of coronary artery atherosclerosis), according to a study in the February 5 issue of JAMA. (2014-02-04)

Up close and 3-dimensional: HIV caught in the act inside the gut
HIV infection has many unhealthy consequences on the body, but in particular it messes up the gut. A study published on Jan. 30th in PLOS Pathogens reports the first three-dimensional ultra-structural study of HIV infection in vivo. Not only does it reveal details on how the virus quickly infects immune cells in the gut, using them as virus-producing factories, but it also highlights where the virus (2014-01-30)

Melatonin shows potential to slow tumor growth in certain breast cancers
An early stage study shows melatonin -- a hormone that regulates the body's sleep and awake cycles -- may have the potential to help slow the growth of certain breast cancer tumors, according to researchers from Henry Ford Hospital in Detroit and Foundation for Research Support of the State of São Paulo. (2014-01-28)

New biomedical diagnostics using personalized 3-D imaging
Researchers at the firm 4DNature and the Universidad Carlos III of Madrid are developing a new technology, called helical optical projection tomography, which improves biomedical diagnostic 3-D imaging. (2014-01-27)

Brain biomarker shows promise in heart
A biomarker widely used to diagnose brain injury has shown early promise for assessing the severity of heart inflammation, or myocarditis, find researchers at Columbia University's Mailman School of Public Health, Johns Hopkins, and the Mayo Clinic. The study is published online in the January issue of the Journal of Cardiovascular Translational Research. (2014-01-27)

Peeking into Schrodinger's box
Until recently measuring a 27-dimensional quantum state would have been a time-consuming, multistage process using a technique called quantum tomography, which is similar to creating a 3D image from many 2D ones. Researchers at the University of Rochester have been able to apply a recently developed, alternative method called direct measurement to do this in a single experiment with no post-processing. (2014-01-20)

With NSF CAREER Award, Virginia Tech engineer pursues development of 5-dimensional image
Virginia Tech biomedical engineering faculty member Guohua Cao, director of the X-Ray Systems Laboratory, is leading an effort to develop a new type of X-ray scanner that is an unprecedented five dimensional technology. Cao is using his NSF CAREER award to combine three separately developed technologies into one synergistic imaging system that will improve aspects of personalized medicine and help with early disease screening. (2014-01-16)

Study: CT scans could bolster forensic database to ID unidentified remains
A study from North Carolina State University finds that data from CT scans can be incorporated into a growing forensic database to help determine the ancestry and sex of unidentified remains. The finding may also have clinical applications for craniofacial surgeons. (2014-01-14)

Follow-up tests improve colorectal cancer recurrence detection
Among patients who had undergone curative surgery for primary colorectal cancer, the screening methods of computed tomography and carcinoembryonic antigen each provided an improved rate of surgical treatment of cancer recurrence compared with minimal follow-up, although there was no advantage in combining these tests, according to a study in the Jan. 15 issue of JAMA. (2014-01-14)

What makes superalloys super -- hierarchical microstructure of a superalloy
Materials in high-performance turbines have to withstand not only powerful mechanical forces, they also have to maintain their chemical and mechanical properties almost up to their melting points. For this reason, turbine manufacturers have employed special nickel-based high-performance alloys for decades. New work from Helmholtz-Zentrum Berlin fuer Materialien and Energie now shows in detail how new phases in a nickel-based alloy form and evolve, providing clues to how high-performance alloys could be improved. (2014-01-14)

Cardiologists urged to reduce inappropriate radiation exposure
Cardiology accounts for 40 percent of patient radiology exposure and equals more than 50 chest X-rays per person per year. The paper calls to reduce the unacceptably high rate of inappropriate examinations and reduce excessive doses. It also lists doses and risks of the most common cardiology examinations for the first time. (2014-01-08)

Childhood fractures may indicate bone-density problems
A recent study at Mayo Clinic, published in the Journal of Bone and Mineral Research, indicates that certain types of fractures may have implications for a child's long-term bone health. (2014-01-07)

New diagnostic and therapeutic techniques show potential for patients with metastasized melanoma
With low survival rates for patients with metastasized melanoma, accurate staging and effective treatments are critical to extending life. New research published in the Journal of Nuclear Medicine highlights the potential of newly developed radiopharmaceuticals with benzamide for the imaging of metastases and as a targeted systemic therapy. (2014-01-07)

Regional variation in Medicare imaging utilization is considerably less than regional variation in imaging costs
The January issue of the Journal of the American College of Radiology focuses on a variety of issues relating to clinical practice, practice management, health services and policy, and radiology education and training. (2014-01-06)

New MRI technique illuminates the wrist in motion
UC Davis radiologists, medical physicists and orthopaedic surgeons have found a way to create (2014-01-02)

Overweight linked with reduced lung function in children with a history of early childhood wheezing
Overweight and obesity are significant risk factors for reduced lung function in school-aged children with a history of early childhood wheezing, according to a study carried out at the University of Eastern Finland. The results also showed that the use of inhaled corticosteroids for asthma in childhood may result in reduced bone mineral density in early teenage years. (2014-01-02)

Final recommendations on lung cancer screening
Below is information about an article being published in Annals of Internal Medicine. The information is not intended to substitute for the full article as a source of information. Annals of Internal Medicine attribution is required for all coverage. (2013-12-30)

Study shows value of calcium scan in predicting heart attack, stroke among those considered at risk
A new study shows that coronary artery calcium (CAC) screening, an assessment tool that is not currently recommended for people considered at low risk, should play a more prominent role in helping determine a person's risk for heart attack and heart disease-related death, as well as the need for angioplasty or bypass surgery. CAC screening provides a direct measure of calcium deposits in heart arteries and is easily obtained on a computed tomography scan. (2013-12-23)

The first cancer operation room with a navigator is created
A team of researchers from Gregorio Marañón Hospital, the company GMV and the Universidad Carlos III de Madrid have started the first cancer operation room with a navigator. This image-guided system will allow for increased intraoperative radiotherapy safety. (2013-12-19)

Younger, early breast cancer patients often undergo unnecessary staging, imaging procedures at time
More than one third of younger, early stage breast cancer patients undergo unnecessary imaging procedures -- including position emission tomography, computed tomography, nuclear medicine bone scans and tumor markers -- at the time of staging and diagnosis, according to research from the University of Texas MD Anderson Cancer Center. (2013-12-12)

Review calls for increased attention to cancer risk from silica
A new review highlights new developments in understanding the health effects of silica, and calls for action to reduce illness and death from silica exposure at work. (2013-12-10)

NLST data highlight probability of lung cancer overdiagnosis with low-dose CT screening
Data from the National Lung Cancer Screening Trial--conducted by the American College of Radiology Imaging Network and National Cancer Institute Lung Screening Study--provided researchers the opportunity to investigate the probability that cancer detected with screening low-dose computed tomography (LDCT) would not have progressed to become life threatening. The results published online in JAMA Internal Medicine suggest that up to 18 percent of the cancers detected by LDCT may not have progressed to affect patient health if left undetected. (2013-12-09)

Study suggests overdiagnosis in screening for lung cancer with low-dose CT
More than 18 percent of all lung cancers detected by low-dose computed tomography appeared to represent an overdiagnosis, according to a study published by JAMA Internal Medicine, a JAMA Network publication. (2013-12-09)

New fossil species found in Mozambique reveals new data on ancient mammal relatives
In the remote province of Niassa, Mozambique, a new species and genus of fossil vertebrate was found. The species is a distant relative of living mammals and is approximately 256 million years old. This new species belongs to a group of animals called synapsids. Synapsida includes a number of extinct lineages that dominated the communities on land in the Late Permian (260-252 million years ago), as well as living mammals and their direct ancestors. (2013-12-04)

Blood vessels reorganize after face transplantation surgery
For the first time, researchers have found that the blood vessels in face transplant recipients reorganize themselves, leading to an understanding of the biologic changes that happen after full face transplantation. (2013-12-04)

International study finds heart disease similar in men and women
An analysis of data from an international multicenter study of coronary computed tomography angiography reveals that men and women with mild coronary artery disease and similar cardiovascular risk profiles share similar prognoses. (2013-12-03)

New study sheds light on the functional importance of dinosaur beaks
Why beaks evolved in some theropod dinosaurs and what their function might have been is the subject of new research by an international team of palaeontologists published this week in Proceedings of the National Academy of Sciences. (2013-12-02)

Special journal issue focuses on imaging screening
To be published online Monday, Dec. 2, a special issue of the Journal of the American College of Radiology addresses imaging-based screening and radiology's increasing role in preventive medicine. Topics covered include breast density legislation, digital breast tomosynthesis (or 3-D mammography), lung cancer screening and computed tomography colonography reimbursement. (2013-12-02)

RSNA and Regenstrief Institute launch effort to unify radiology procedure naming
Under a contract awarded by the National Institute of Biomedical Imaging and Bioengineering, the developers of two advanced medical terminologies have begun work to harmonize and unify terms for radiology procedures. Creating standardized radiology procedure names will improve the quality, consistency and interoperability of radiology test results in electronic medical record systems and health information exchange. (2013-11-26)

Researchers use CT and 3-D printers to recreate dinosaur fossils
Data from computed tomography scans can be used with three-dimensional printers to make accurate copies of fossilized bones, according to new research. (2013-11-20)

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)

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