Stereotactic radiotherapy (SRT) is the use of this very precise technology to
deliver high doses of radiation in fewer treatments compared to conventional protocols.
Over the course of seven hours, animal radiologist Anthony Fischetti subjected them to
high doses of radiation in the hospital's CT scanner.
SBRT permits the precise and accurate delivery
of high doses of radiation over a shorter period of time (typically 1 to 2 weeks) than with conventional radiation treatments.
The radiation - sensitive rats that
received higher doses of radiation had a higher concentration of transporters for the neurotransmitter dopamine, which plays a role in vigilance and attention, says Catherine M. Davis, Ph.D., a postdoctoral fellow in the Department of Psychiatry and Behavioral Sciences and the study's first author.
The use of CT scan imaging tests is of growing concern because the tests
entail higher doses of radiation — typically producing 500 times more radiation than x-rays.
In a search for ways of extending the value of radiation and limiting the collateral damage to healthy tissue that
necessarily high doses of radiation may inflict, Raman worked with Phuoc Tran, M.D., Ph.D., an associate professor of radiation oncology and molecular radiation sciences, oncology, and urology, and also a member of the Kimmel Cancer Center.
This linear no - threshold (LNT) dose - response relationship has been used to extrapolate the risks of low doses of radiation from epidemiological studies that were done following exposure to
much higher doses of radiation (e.g. survivors of the atomic bombings).
SOME can sprout wire - like appendages that conduct electricity, others protect
against high doses of radiation, many can flavour food and some are even being used to create self - cleaning clothes.
They also stop once they hit the target rather than continuing through the body, allowing them to
deposit higher doses of radiation at the selected site while minimizing damage to nearby healthy tissue and the short - and long - term side effects that can result.
SBRT
delivers high doses of radiation to the tumor in a decreased amount of treatment time, compared to standard RT, while minimizing exposure to surrounding healthy organs.
They're also advised to avoid flying when the sun is having a solar particle event, which can deliver
a higher dose of radiation in one flight than is recommended for the entirety of a pregnancy.
But it takes
a higher dose of radiation to zap bacteria than it does to kill pests.
The leukaemia rate in children whose fathers accumulated
the highest doses of radiation before conception (more than 100 millisieverts) was nearly six times greater.
The image quality provided by the latest digital detectors permits radiologists to see fine detail without resorting to
high doses of radiation.
SBRT provides
a higher dose of radiation, meaning patients have fewer treatments.
Water bears, or tardigrades, have been recorded surviving the vacuum of space,
high doses of radiation and pressure.
To investigate this life - saving stitchwork, Abraham Minsky and colleagues at the Weizmann Institute of Science in Rehovot, Israel, and elsewhere exposed thousands of bugs to
high doses of radiation.
Slam an ordinary creature with
a high dose of radiation and the results are most unpleasant: tissue swells, strands of DNA rupture, and chromosomes shatter.
Stereotactic body radiation is a newer type of radiation therapy which delivers
higher doses of radiation to the tumor but spares the surrounding tissue.
Mice that are unable to fully activate the powerful tumor suppressor p53 are resistant to
high doses of radiation.
In other cases, people who have had had
high doses of radiation or chemotherapy to destroy life - threatening cancer cells, the treatment can stop their bone marrow's ability to make blood cells.
It precisely delivers
a high dose of radiation to a very focal area in the brain while avoiding normal brain tissue.
Stereotactic radiosurgery, often used in human medicine, is designed to precisely deliver
high doses of radiation to a tumor or localized cancer -LSB-...]
In autograft the tumor site is removed from the leg and then treated with
a high dose of radiation to «kill» the tumor.
A machine called a CyberKnife offers a non-invasive therapy that allows
a high dose of radiation to be delivered to a pet's tumor in just a few treatments,... read more»