A new study identified a set of 140 genes that may help predict enhanced disease-free survival in patients with non-small cell lung cancer (NSCLC) treated with a combination of immunotherapy and low-dose radiation. The results, ...
Feb 23, 2024
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An innovative breast imaging technique provides high sensitivity for detecting cancer while significantly reducing the likelihood of false positive results, according to a study published in Radiology: Imaging Cancer. Researchers ...
Feb 9, 2024
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A novel liquid biopsy test may help determine which patients with non-small cell lung cancer that has spread beyond the lungs are most likely to benefit from targeted, high-dose radiation, rather than drug-based therapy, ...
Oct 2, 2023
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Prolonged exposure to low-dose ionizing radiation is associated with a higher risk of death from cancer than previously thought, suggests research tracking the deaths of workers in the nuclear industry, published in The BMJ.
Aug 16, 2023
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Polynesians exposed to fallout from France's nuclear tests in the South Pacific have a slightly increased risk of developing thyroid cancer, a study suggested on Monday that used declassified military data for the first time.
May 15, 2023
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Gastric cancer is one of the most common cancers worldwide. A new invention by researchers from the National University of Singapore (NUS) could help improve the treatment of this cancer by enhancing the precision of radiotherapy, ...
Apr 14, 2023
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Radiation, used to treat half of all cancer patients, can be measured during treatment for the first time with precise 3D imaging developed at the University of Michigan.
Jan 3, 2023
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Loss of myelin—a protective insulating layer around neurons—is a key contributor to many neurological diseases including multiple sclerosis, traumatic brain and spinal cord injuries, stroke, and dementia; however, there ...
Oct 5, 2022
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Some types of cancer and other diseases are treated with a drug containing radioactive material that targets the tumor. However, the drug can also be deposited in healthy organs, potentially damaging the kidneys, gut or bone ...
Aug 8, 2022
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A phase 1 clinical trial led by investigators at the University of Chicago Medicine testing the effects of stereotactic body radiotherapy for treating multiple metastases has determined that treatments used for single tumors ...
Apr 22, 2021
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Absorbed dose (also known as total ionizing dose, TID) is a measure of the energy deposited in a medium by ionizing radiation. It is equal to the energy deposited per unit mass of medium, and so has the unit J/kg, which is given the special name Gray (Gy).
Note that the absorbed dose is not a good indicator of the likely biological effect. 1 Gy of alpha radiation would be much more biologically damaging than 1 Gy of photon radiation for example. Appropriate weighting factors can be applied reflecting the different relative biological effects to find the equivalent dose.
The risk of stochastic effects due to radiation exposure can be quantified using the effective dose, which is a weighted average of the equivalent dose to each organ depending upon its radiosensitivity.
When ionising radiation is used to treat cancer, the doctor will usually prescribe the radiotherapy treatment in Gy. When risk from ionising radiation is being discussed, a related unit, the sievert is used.
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