In younger patients, the estimated radiation risks associated with abdominal and pelvic computed tomography (CT) scans are twice those of older patients, according to a study to be presented at the ARRS 2010 Annual Meeting ...
May 03, 2010
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(PhysOrg.com) -- At very cold temperatures, in the absence of light, a photomultiplier will spontaneously emit single electrons. The phenomenon, which is called "cryogenic electron emission," was first observed ...
Mar 10, 2010
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(PhysOrg.com) -- Astronomers have made great strides recently in understanding how modest stars - those like the sun or smaller -- are formed.
Mar 09, 2010
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A Northwestern University study shows that coupling a widely used magnetic resonance imaging (MRI) contrast agent to a nanodiamond results in dramatically enhanced signal intensity and thus vivid image contrast. "The results ...
Feb 18, 2010
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A new tool may help standardize the use of computed tomography (CT scans) in children with minor head injury and help reduce the number of scans, according to a new study in CMAJ (Canadian Medical Association Journal).
Feb 08, 2010
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Studies have shown positron emission tomography's (PET) value as a minimally invasive, painless and safe diagnostic tool for many pediatric conditions. In a study published in the February issue of The Journal of Nuclear Me ...
Feb 01, 2010
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A Northwestern University study shows that coupling a magnetic resonance imaging (MRI) contrast agent to a nanodiamond results in dramatically enhanced signal intensity and thus vivid image contrast.
Jan 14, 2010
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FDA researchers have found that certain cardiac pacemakers may inadequately stimulate a patient's heart while undergoing a magnetic resonance imaging (MRI) scan due to the magnetic pulses mixing with the electronic pulses ...
Dec 15, 2009
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The Materials on the International Space Station Experiment (MISSE) 7, designed and built by the Naval Research Laboratory (NRL), launched aboard STS-129 on November, 16, for transport to the International ...
Dec 07, 2009
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A large proportion of patients who undergo abdominal/pelvic computed tomography (CT) receive unindicated and unnecessary additional image acquisition resulting in excess, avoidable radiation exposure, according to a study ...
Nov 30, 2009
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Acute heart attack patients received an average total dose of ionizing radiation equal to 725 chest X-rays from medical tests during their hospital stay, according to research presented at the American Heart Association's ...
Nov 16, 2009
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The Radiological Society of North America (RSNA) reaffirmed its commitment to patient safety today in responding to a study and accompanying perspective on radiation dose from medical imaging procedures in the New England Jo ...
Aug 27, 2009
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MDCT angiography leads to accurate recommendations for successful treatment of patients with critical limb ischemia, sometimes allowing the patients to avoid more complicated surgery, according to a study performed at the ...
Jun 03, 2009
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MR enterography is an effective tool to evaluate and guide treatment of patients with Crohn's Disease (a common form of inflammatory bowel disease that typically affects young people) without exposing them to radiation, according ...
Apr 23, 2009
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X-rays penetrate the patient's body, helping the doctor guide the catheter through the artery. In future, it will be possible to monitor the position of the catheter without exposing the patient to X-ray radiation, ...
Mar 09, 2009
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