News tagged with radiation oncology
A novel drug may help increase the effectiveness of radiation therapy for the most deadly form of brain cancer, report scientists at Virginia Commonwealth University Massey Cancer Center. In mouse models of human glioblastoma ...
Cancer May 14, 2013 | 5 / 5 (2) | 0
(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
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 |
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
Poly (ADP-Ribose) polymerase (PARP) inhibitors, shown to have clinical activity when used alone in women with familial breast and ovarian cancers linked to BRCA mutations, may be a novel treatment strategy in women with HER2-positive ...
Cancer Sep 17, 2012 | not rated yet | 0 |
Curcumin, an active component of the Indian curry spice turmeric, may help slow down tumor growth in castration-resistant prostate cancer patients on androgen deprivation therapy (ADT), a study from researchers ...
Cancer Feb 10, 2012 | 4.5 / 5 (10) | 0 |
New technique sheds light on RNA: Researchers develop method that could enhance gene sequencing data
Researchers at the University of Michigan Comprehensive Cancer Center have developed a technique to better understand why RNA may be different in cancer cells than in normal cells. The technique will bring new depth of understanding ...
Medical research Jan 28, 2013 | 5 / 5 (1) | 0 |
Ohio State University cancer researchers have identified molecules in the bloodstream that might accurately gauge the likelihood of radiation illness after exposure to ionizing radiation.
Cancer Feb 25, 2013 | 5 / 5 (1) | 0 |
A receptor protein suppresses local invasion and metastasis of breast cancer cells, the most lethal aspect of the disease, according to a research team headed by scientists from The University of Texas MD Anderson Cancer ...
Cancer Sep 25, 2012 | 5 / 5 (1) | 0 |
The ductal carcinoma in situ (DCIS) Score quantifies the risk of ipsilateral breast event (IBE) and invasive IBE risk, complements both traditional clinical and pathologic factors, and helps provide a new clinical tool to ...
Cancer May 02, 2013 | not rated yet | 0
(HealthDay) -- Girls who receive radiation to the chest to treat childhood cancer, even those getting lower doses, have a high risk of developing breast cancer at a young age, according to a new study.
Cancer Jun 04, 2012 | not rated yet | 0
Monitoring the hepatic function of unresectable liver cancer patients, measured by 99mTc-labeled iminodiacetic acid (HIDA) via single-photon emission computed tomography (SPECT) prior to and during radiation therapy, provides ...
Cancer Feb 08, 2013 | not rated yet | 0
(HealthDay)—Men with prostate cancer taking the drug finasteride (Proscar) don't survive longer than similar men not taking the drug, a new study finds.
Cancer Feb 15, 2013 | not rated yet | 0 |
Breast cancer stem cells are thought to be the sole source of tumor recurrence and are known to be resistant to radiation therapy and don't respond well to chemotherapy.
Cancer Feb 13, 2012 | not rated yet | 0
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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