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Ionizing Radiation Current Events | Ionizing Radiation News | 2

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Study tracks increasing use of CT on pregnant women
Researchers have found that over a 10-year period radiologic exams on pregnant women have more than doubled, according to a study published in the online edition of Radiology.    view more (2009-03-17)

Researchers uncover protection mechanism of radiation-resistant bacterium
Recent discoveries by researchers at the Uniformed Services University of the Health Sciences (USU) could lead to new avenues of exploration for radioprotection in diverse settings. Michael J. Daly, Ph.D., an associate professor in USU's Department of Pathology, and his colleagues have uncovered evidence pointing to the mechanism through which the... view more... (2007-03-21)

Optical fibers monitor particle accelerator
The DESY laboratory in Hamburg is planning to build a 33-km linear collider. In order to fine-tune the beam to the equipment, scientists must determine the size and location of any radiation leaks. A newly developed fiber-optic measuring technique provides the answer. Living cells are small and the processes taking place inside them fast.... view more... (2002-02-01)

Oncologists could gain therapeutic advantage by targeting telomere protein
Inactivating a protein called mammalian Rad9 could make cancer cells easier to kill with ionizing radiation, according to research at Washington University School of Medicine in St. Louis.   view more (2006-02-17)

Proton therapy lowers chance of later cancers
Patients who are treated with proton therapy (a specialized type of external beam radiation therapy using protons rather than X-rays to treat cancer) decreases the risk of patients developing a secondary cancer by two-fold, compared to being treated with standard photon radiation treatment.   view more (2008-09-22)

Study examines radiation dose estimates for pregnant women undergoing therapeutic ERCP
Pregnant women with gallstone disease may require immediate endoscopic intervention because of potentially life-threatening cholangitis (infection in the bile ducts) or gallstone pancreatitis (inflammation of the pancreas).   view more (2009-04-29)

Low dose radiation in infancy may affect intellect
Exposure to low doses of ionising radiation in infancy affects intellectual capacity in later life, conclude researchers from Sweden in this week's BMJ. CT scanning, which delivers high doses of ionising radiation, is increasingly being used in young children after minor head trauma. The study involved 3,094 men who had received radiation therapy... view more... (2004-01-03)

New technique reduces radiation exposure by 60 percent in abdominal CT of children
By lowering the tube current to account for both the weight and body symmetry of a child, an abdominal CT radiation dose can be reduced by 60% without compromising the image quality.   view more (2006-05-02)

CT scans: Too much of a good thing can be risky
Patients who undergo numerous CT scans over their lifetime may be at increased risk for cancer, according to a study published in the April issue of Radiology.   view more (2009-03-31)

New radiation technique can greatly reduce painful skin burns in women with breast cancer
Breast cancer patients who undergo a new radiation technique called intensity modulated radiation therapy (IMRT) after surgery are three times less likely to have severe skin reactions from the treatment compared to standard radiation therapy.   view more (2006-11-07)

REDUCED LONGEVITY OF ATOMIC-BOMB SURVIVORS (p 303)
A study in this week's issue of THE LANCET does not support claims that atomic-bomb survivors exposed to certain doses of radiation live longer than comparable unexposed individuals. There have been conflicting claims regarding the biological and health consequences of exposure to low doses of radiation, with reports that some atomic-bomb... view more... (2000-07-19)

Radiologists find a technique to significantly reduce patient radiation dose during CT angiography
Radiologists have discovered that prospective electrocardiogram (ECG) gating allows them to significantly reduce the patient radiation dose delivered during computed tomography (CT) angiography, a common noninvasive technique used to evaluate vascular disease.   view more (2009-09-21)

Rare pancreatic cancer patients may live longer when treated with radiation therapy
Radiation therapy is effective in achieving local control and palliation in patients with pancreatic neuroendocrine tumors (PNTs), despite such tumors being commonly considered resistant to radiation therapy.   view more (2009-11-23)

New study focuses on radiation-associated cancer risks
Concerns about the risk of radiation-induced cancer are growing with the increasing number of cancer patients surviving long term.   view more (2007-01-12)

Dig deeper to find Martian life
Probes designed to find life on Mars do not drill deep enough to find the living cells that scientists believe may exist well below the surface of Mars, according to research led by UCL (University College London).   view more (2007-01-30)

Team develops new metamaterial device
An engineered metamaterial proved it can function as a state-of-the-art device in the complex terahertz range of the electromagnetic spectrum, setting a standard of performance for modulating tiny waves of radiation, according to a team of researchers from Boston College, the Los Alamos and Sandia national laboratories, and Boston University.   view more (2009-02-25)

Optimal adjuvant radiation therapy associated with improved survival, meta-analysis shows
A new analysis of adjuvant radiation therapy in women with breast cancer following mastectomy is associated with better survival as measured at 10 years when appropriate doses and fields of radiation are used.   view more (2006-01-04)

Radiation after surgery doubles survival time for some lung cancer patients
Patients with lung cancer that has spread to mediastinal lymph nodes - located between the chest, breastbone and spine - who receive radiation after surgery and chemotherapy live twice as long as patients who do not receive radiation after surgery.   view more (2006-11-07)

Detecting bone erosion in arthritic wrists
Both magnetic resonance imaging (MRI) and computed tomography (CT) are more sensitive than radiography - the standard imaging technique - for detecting bone erosions in rheumatoid arthritis (RA).   view more (2008-02-28)

Mechanism controlling DNA damage response has potential novel medical applications
Investigators at St. Jude Children's Research Hospital have discovered a previously unrecognized mechanism that controls a key protein linked to the cell's response to stress-a finding that holds promise for new ways to enhance cancer therapies or protect cells from dying after exposure to damaging chemicals or radiation.   view more (2005-10-07)
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