Radiation Dose Current Events | Radiation Dose News
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Iterative reconstruction technique significantly reduces patient radiation dose during CT scans
Computed tomography (CT) scans are responsible for more than two thirds of the total radiation dose associated with medical imaging exams. view more (2009-08-19)
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)
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)
Low-Dose CT Method, Delivering 50% Less Radiation, Correctly Identifies Patients with Appendicitis
Patients with possible appendicitis are typically evaluated using a standard-dose contrast enhanced CT, but a low-dose unenhanced CT that delivers approximately 50% less radiation is just as effective, according to a study performed at the Seoul National University College of Medicine in Seoul, Korea. view more (2009-07-23)
Radiation dose reduction in liver cancer
A new digital angiography flat panel system reduces the radiation dose to patients undergoing interventional treatment for liver cancer by about one-fourth, a new study shows. view more (2005-10-03)
CT Scans Increase Cancer Risk Estimates in Multiply-Imaged Emergency Department Patients
Physicians should review a patient's CT imaging history and cumulative radiation dose when considering whether to perform another CT exam. view more (2009-05-06)
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)
Radiation Dose Drastically Reduced During Whole Chest MDCT
Emergency physicians who evaluate patients with non-specific chest pain using whole chest multi-detector CT (MDCT) combined with retrospective electrocardiogram (ECG) gating can reduce the patient radiation dose by 71% using MDCT combined with prospective ECG triggering instead. view more (2009-06-24)
Extremely low dose CT coronary angiography shows promise in assessing cardiac function
Extremely low dose CT coronary angiography can be used to measure cardiac function and has the potential for use when other commonly used examinations are limited, a preliminary study indicates. view more (2008-04-14)
Radiologists Can Dramatically Lower Cardiac CT Radiation Dose in Some Patients
Radiologists can now lower the radiation dose delivered by cardiac CT angiography by 39% in adult patients weighing 185 pounds or less, according to a study performed at the University of Erlangen in Erlangen, Germany. view more (2009-04-06)
Pediatric Patient Body Shape May Play a Key Role in Decreasing Radiation Dose During CT Scans
Manipulation of kVp (kilovoltage peak) and mAs (tube current flow) according to a patient's body shape may help reduce radiation doses in pediatric patients during CT, according to a study performed at the Cleveland Clinic Children's Hospital in Cleveland, OH. view more (2009-04-24)
Patient Radiation Exposure During Interventional Procedures is a Concern for Some Developing Countries
Interventional radiology procedures are on the rise in developing countries and there is a significant need for optimization of these procedures to ensure patient safety. view more (2009-08-04)
Researchers Find a Way to Reduce Patient Radiation Dose During Pulmonary CT Angiography
While screening for possible pulmonary emboli using pulmonary CT angiography, a new study shows that radiologists can effectively lower the patient radiation dose by approximately 44% and improve vascular enhancement without deterioration of image quality. view more (2009-07-01)
Extra radiation dose prevents breast cancer return in young women
Women 40 years and younger with early-stage breast cancer who receive an additional high dose of radiation (boost dose) after undergoing breast-conserving surgery (lumpectomy) and standard radiation treatment are almost twice as likely to be free of cancer 10 years after treatment compared to those who don't receive the boost dose. view more (2007-10-30)
Bug-Zapper: A dose of radiation may help knock out malaria
How are physicists helping an effort to eradicate malaria, the mosquito-borne disease that kills more than one million people every year" Researchers at the National Institute of Standards and Technology (NIST) used their expertise in radiation science to help a young company create weakened, harmless versions of the malaria-causing parasite. view more (2007-11-09)
High-dose radiation reduces risk of prostate cancer recurrence
Men with localized prostate cancer who received high-dose external radiation therapy were less likely to have cancer recurrence than men who received conventional-dose radiation therapy. view more (2005-09-14)
Appropriate timing in the use of breast shields in children can further reduce MDCT radiation dose
Using breast shields during pediatric chest MDCT reduces radiation dose and minimally increases image noise, according to a recent study conducted by researchers at Duke University Medical Center in Durham, NC and the University of Arkansas for Medical Sciences and Arkansas Children's Hospital in Little Rock. view more (2008-02-13)
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)
Prostate cancer patients see high survival rates with seed implants
More than ninety percent of men who receive appropriate radiation dose levels with permanent radiation seed implants to treat their prostate cancer are cured of their cancer eight years after diagnosis. view more (2007-02-01)
1-step breast cancer treatment combines radiation, surgery
Princess Margaret Hospital (PMH) breast cancer specialists are using a new way to treat patients by delivering a one-time dose of radiation during surgery. view more (2007-06-20)
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