About 80 percent of patients receiving high - dose, short - course therapies had good cosmetic results, similar to longer - course treatments with
smaller radiation doses.
THE CONTRARY VIEW: Veteran journalist Jeff Wheelwright, who covers health and genetics, says the evidence linking
small radiation doses to cancer is flimsy.
Not exact matches
And as a new study published in Health Physics recently explored, everyday foods and objects (yes, even the beloved avocado) emit a very
small dose of
radiation every hour.
Even in
small doses, exposure to
radiation is problematic for a developing baby and mom.
Chesser says some of his group's studies of mice exposed to radioactivity around Chernobyl hint at hormesis:
Small exposures over 10 to 45 days, they found, appeared to temper damage from an acute
radiation dose delivered in the lab later.
That there will be some human cancers is assumed, thanks to the linear no - threshold theory of cancer, which holds that no
radiation dose is so
small that it can not produce a probability of cancer.
For more than a century, scientists have assumed your body reacts to that
radiation in much the same way it does to high
doses — only on a much
smaller scale.
The general population in northeastern Japan, however, has considerably less access to accurate, non-invasive
radiation dose measuring equipment, a troubling situation made more so by Wednesday's announcement by Japan's science ministry that
small amounts of cancer - causing radioactive strontium have been detected in soil and plants outside the 30 - kilometer zone around the plant where the government has advised people to stay indoors.
«This study, one of only a few large studies to have follow - up beyond five years, demonstrates that patients who have head and neck cancers and who are being treated with
radiation therapy alone have improved local - regional control and no increase in late toxicity when
radiation therapy is delivered twice a day in two
smaller doses which we call hyperfractionation,» said Jonathan J. Beitler, MD, MBA, FASTRO, lead author of the study and professor of
radiation oncology, otolaryngology and hematology / medical oncology at the Winship Cancer Institute of Emory University School of Medicine in Atlanta.
People who have been exposed to large
doses of
radiation to the head face a
small risk of later developing brain tumors.
Compared to the conventional
radiation therapy (RT) approach of
small doses given daily over several weeks, SBRT delivers a highly targeted, escalated
dose of
radiation in a single session or as many as five of treatments, usually between one and five fractions.
Koyuncu discovered this when she infected isolated axons with a
small number of virus particles, which would normally travel to the cell bodies and be silenced, while simultaneously exposing the cell bodies to a large number of inactivated virus particles that have been
dosed with ultraviolet
radiation (UV).
According to a report from the Institute of Biophysics at the former Soviet Health Ministry in Chelyabinsk the «
small but constant
doses of
radiation» received by residents «have not occurred anywhere else in the world».
However, volunteers received only a single
dose of mirabegron, since PET / CT scanning involves exposure to a
small amount of
radiation.
Ultrasound (or sonography) uses sound waves as opposed to the use of
small doses of
radiation with mammography [4].
The standard for many years has been administration of multiple
small doses of
radiation with the goal of eradicating the tumor.
As I understand things (and this is NOT my field at all) there is a robust dispute over how sure we can be about what ionizing
radiation dose to human health at
small doses.
Most of the arguments I've heard here (and made myself) against nukes are based on economics and the risk and effects of catastrophic failure, not
small doses of
radiation.