News tagged with radiation therapy
A Japanese cancer specialist said Wednesday she has started the world's first clinical trial of a powerful, non-surgical, short-term radiation therapy for breast cancer.
Cancer May 22, 2013 | 5 / 5 (1) | 0
Older prostate cancer patients with other underlying health conditions should think twice before committing to surgery or radiation therapy for their cancer, according to a multicenter study led by researchers in the UCLA ...
Cancer May 20, 2013 | not rated yet | 0 |
Discovery of circadian clock in mice hair reveals period of time when damage from radiotherapy can be quickly repaired
Discovering that mouse hair has a circadian clock - a 24-hour cycle of growth followed by restorative repair - researchers suspect that hair loss in humans from toxic cancer radiotherapy and chemotherapy ...
Medical research May 20, 2013 | 5 / 5 (2) | 1 |
(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
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
Researchers at Moffitt Cancer Center have found that a deficiency in an important anti-tumor protein, p53, can slow or delay DNA repair after radiation treatment. They suggest that this is because p53 regulates the expression ...
Cancer Apr 23, 2013 | 4 / 5 (1) | 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 |
The American Society for Radiation Oncology (ASTRO) has issued a new white paper, "Assuring Safety and Quality in Image Guided Delivery of Radiation Therapy," that recommends best practices to improve the safety and effectiveness ...
Cancer Apr 18, 2013 | not rated yet | 0
Australian researchers have developed a new therapy to treat a common and aggressive form of breast cancer and stop the disease spreading, with a 100% success rate reported in mice.
Cancer Apr 16, 2013 | 5 / 5 (1) | 0
A team led by Massachusetts General Hospital (MGH) researchers has identified a genetic signature that appears to reflect the risk of tumor recurrence or spread in men surgically treated for prostate cancer. If confirmed ...
Cancer Apr 15, 2013 | not rated yet | 0 |
First-of-its-kind research presented today showed microwave ablation (MWA) therapy cut pain in half for patients with painful bone and soft-tissue tumors and took less time to complete than radiofrequency ablation. Pain relief ...
Cancer Apr 11, 2013 | not rated yet | 0
(HealthDay)—A new treatment approach may mean that young people with a form of lymphoma can go without radiation therapy, sparing them side effects or raised cancer risks down the road.
Cancer Apr 10, 2013 | 5 / 5 (1) | 0
Cancer survivors who had chest radiation are nearly twice as likely to die in the years after having major heart surgery as similar patients who didn't have radiation, according to research in the American Heart Association ...
Cardiology Apr 08, 2013 | not rated yet | 0
(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 |
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
This text uses material from Wikipedia and is available under the GNU Free Documentation License.