News tagged with radiation therapy
(Medical Xpress)—Prostate cancer ranks as the most common internal malignancy diagnosed in men in the United States, but often does not require extensive treatment.
Cancer May 10, 2013 | not rated yet | 0
(Medical Xpress)—For many years, breast cancer patients have reported experiencing difficulties with memory, concentration and other cognitive functions following cancer treatment. Whether this mental "fogginess" is psychosomatic ...
Cancer Apr 19, 2013 | 5 / 5 (2) | 0 |
Researchers at Case Western Reserve University School of Medicine have discovered a mutant form of the gene, Chk1, that when expressed in cancer cells, permanently stopped their proliferation and caused cell death without ...
Cancer Aug 01, 2012 | 4.9 / 5 (49) | 7 |
Resveratrol, a compound found commonly in grape skins and red wine, has been shown to have several beneficial effects on human health, including cardiovascular health and stroke prevention. Now, a University ...
Cancer Nov 10, 2012 | 5 / 5 (6) | 5 |
(Medical Xpress)—Cancer painfully ends more than 500,000 lives in the United States each year, according to the Centers for Disease Control and Prevention. The scientific crusade against cancer recently ...
Cancer Apr 03, 2013 | 5 / 5 (19) | 6 |
The American Society for Radiation Oncology (ASTRO) and the American Urological Association (AUA) are pleased to announce the publication of the joint guideline on radiation therapy after prostatectomy for patients with and ...
Cancer May 07, 2013 | not rated yet | 0
The well-studied protein VEGF does not appear to have any prognostic or predictive value for men with locally advanced prostate cancer, researchers from the Department of Radiation Oncology at Thomas Jefferson University ...
Cancer Apr 29, 2013 | not rated yet | 0
Melbourne researchers have identified a new way of protecting female fertility, offering hope to women whose fertility may be compromised by the side-effects of cancer therapy or by premature menopause.
Medical research Sep 22, 2012 | 5 / 5 (1) | 0 |
Researchers see more realistic tumor growth and response to anti-cancer drugs using polymer scaffolds
(Medical Xpress)—Porous polymer scaffolds fabricated to support the growth of biological tissue for implantation may hold the potential to greatly accelerate the development of cancer therapeutics.
Cancer Apr 02, 2013 | 3 / 5 (1) | 0 |
(Medical Xpress) -- For many years, most of the studies done to see what effects cancer treatment has on the offspring of survivors, has involved radiation. This is because radiation is known to cause mutations in cells. ...
Medical research Jan 31, 2012 | 4 / 5 (2) | 0 |
Gene therapy can be performed safely in the human salivary gland, according to scientists at the National Institute of Dental and Craniofacial Research (NIDCR), part of the National Institutes of Health.
Cancer Nov 05, 2012 | 5 / 5 (2) | 0 |
Research could lead to new ways to ID women who have higher risk of breast cancer from low-dose radiation
(Medical Xpress)—Scientists from the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) have identified tissue mechanisms that may influence a woman's susceptibility or resistance ...
Cancer Oct 16, 2012 | not rated yet | 0 |
(Medical Xpress) -- Traditionally, there are three major ways to combat cancer in people: surgical removal, radiation therapy and chemotherapy. And while all three have been proven to be effective in treating some types of ...
Cancer Nov 07, 2011 | 5 / 5 (8) | 1 |
Scientists from Brigham and Women's Hospital and Dana-Farber Cancer Institute and their colleagues have found a genetic marker that predicts which aggressive "triple negative" breast cancers and certain ovarian cancers will ...
Cancer Mar 22, 2012 | 4.7 / 5 (3) | 0 |
(Medical Xpress) -- Researchers have created and tested miniature devices that are implanted in tumors to generate oxygen, boosting the killing power of radiation and chemotherapy.
Cancer Aug 31, 2011 | not rated yet | 2 |
Radiation therapy (also radiotherapy or radiation oncology, sometimes abbreviated to XRT) is the medical use of ionizing radiation as part of cancer treatment to control malignant cells (not to be confused with radiology, the use of radiation in medical imaging and diagnosis). Radiotherapy may be used for curative or adjuvant cancer treatment. It is used as palliative treatment (where cure is not possible and the aim is for local disease control or symptomatic relief) or as therapeutic treatment (where the therapy has survival benefit and it can be curative). Total body irradiation (TBI) is a radiotherapy technique used to prepare the body to receive a bone marrow transplant. Radiotherapy has several applications in non-malignant conditions, such as the treatment of trigeminal neuralgia, severe thyroid eye disease, pterygium, pigmented villonodular synovitis, prevention of keloid scar growth, and prevention of heterotopic ossification. The use of radiotherapy in non-malignant conditions is limited partly by worries about the risk of radiation-induced cancers.
Radiotherapy is used for the treatment of malignant tumors (cancer), and may be used as the primary therapy. It is also common to combine radiotherapy with surgery, chemotherapy, hormone therapy or some mixture of the three. Most common cancer types can be treated with radiotherapy in some way. The precise treatment intent (curative, adjuvant, neoadjuvant, therapeutic, or palliative) will depend on the tumour type, location, and stage, as well as the general health of the patient.
Radiation therapy is commonly applied to the cancerous tumour. The radiation fields may also include the draining lymph nodes if they are clinically or radiologically involved with tumour, or if there is thought to be a risk of subclinical malignant spread. It is necessary to include a margin of normal tissue around the tumour to allow for uncertainties in daily set-up and internal tumor motion. These uncertainties can be caused by internal movement (for example, respiration and bladder filling) and movement of external skin marks relative to the tumour position.
To spare normal tissues (such as skin or organs which radiation must pass through in order to treat the tumour), shaped radiation beams are aimed from several angles of exposure to intersect at the tumour, providing a much larger absorbed dose there than in the surrounding, healthy tissue.
For more information about Radiation therapy, read the full article at
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