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Modern external beam radiotherapy to the prostate relies on intensity modulated technologies (IMRT), technology that can alter the “fluence” across the radiation field during treatment, thereby allowing the most exact deposition to the contours of an individual’s prostate (bespoke conformity), at the edge of which the dose gradient gives a sharp “fall-off” in dose. CT scanning is used to plan the treatment and daily CT verification scan (low dose scan) ensures accuracy of patient positioning. Unlike most other IMRT techniques, Tomotherapy accuracy does not depend and does not require implanted fiducials into the prostate, giving it a real advantage over other IMRT techniques. Axial CT scan through pelvis with an IMRT isodosimetric plan superimposed and the high dose regions dose-washed in turquoise and red. There is no risk of incontinence following radiotherapy and two thirds of men maintain potency (but not fertility).
Elderly patients and those with capsular breach (T3 disease) are usually advised to receive this therapy. Washington, May 22 : Mathematicians at South Dakota State University have built a mathematical model to strategize an innovative cure for cancer. Assistant professor Matt Biesecker from SDSU's Department of Mathematics and Statistics said the project has to do with Mayo Clinic Cancer Center physicians' plan to use a modified measles virus against some forms of cancer.
Mayo researchers have used bioengineering techniques to make a modified measles virus that will preferentially infect cancer cells instead of the cells the virus would ordinarily target.
The SDSU role so far has been helping Mayo researchers adjust their working mathematical model to simulate treatment plans.
The mathematical model could help researchers in the process of designing viruses to target cancer. Surprisingly, the model also predicts that it is less costly to treat larger tumors than small ones.
In the next mathematical model, Biesecker said, SDSU scientists hope to simulate the behavior of individual cells, giving Mayo scientists greater insight into how viruses can be used against cancer. Successful Cancer surgery at We Care India partner hospital allows Henry Stolz to live a normal life despite a microendoscopic Decompression. Radiation therapy uses high energy x-rays to damage the DNA of cells, thereby killing the cancer cells, or at least stopping them from reproducing.
In order to give normal cells time to heal and to reduce a patient's side effects, radiation treatments are typically given in small daily doses, five days a week, over a six-or seven-week period. External radiation may also be called x-ray therapy, cobalt therapy, proton therapy, or intensity modulated radiation therapy (IMRT). Internal radiation therapy places the source of the high-energy rays inside the body, as close as possible to the cancer cells. Radiation therapy damages healthy cells along with the cancer cells, and this damage can cause side effects.
This information is not designed to replace a physician's independent judgment about the appropriateness or risks of a procedure for a given patient. We Care Health Services - India a€“ Mumbai (Bombay), Chennai (Madras), Hyderabad, Kolkata, Delhi, Bangalore.


The fight against cancer continues to wage, boosted by Harris’ announcement this week of a partnership with Cancer Treatment Services International. The partnership seeks to bring quality, cost-effective cancer treatments to patients across the globe. Founded by Pittsburgh-based physicians and healthcare professionals, CTSI’s provides treatments to patients in areas where cancer treatment is minimal or nonexistent. Founded in May 2009, GovCon Executive is a news blog published by Executive Mosaic Media that covers the dedicated individuals who serve our government through private industry and the officials who affect the government contracting industry at the federal and state levels. Where the rectum is intruding into the prostate volume, IMRT allows a concavity in the high dose volume to the prostate to minimise collateral damage to the rectum.
Tomotherapy has been used for all prostate radiotherapy treatments at the BUPA Cromwell Hospital for the last eight years.
Note the ability of the IMRT technique to cause a concavity in the high dose region such that the rectum (pink) is spared from the high dose radiotherapy. The patient lies on the treatment couch, the position is verified by CT and then treatment delivered. Those with T3 disease, usually have anti-hormone therapy first (for 1-3 months) to shrink the tumour back inside the gland prior to radiotherapy and often continue the anti-hormone therapy after radiotherapy for two years.
That work can help Mayo scientists figure out timing of treatments, for example, and how large or small doses of virus affect the growth of tumors. For example, it could help them understand how likely a particular virus is to infect a tumor cell versus a normal cell, how quickly the virus would replicate within an infected cell, and how quickly an infected cancer cell would die. Radiation also damages normal cells, but because normal cells are growing more slowly, they are better able to repair this radiation damage than are cancer cells.
It is estimated that more than 50% of cancer patients will receive radiation at some point during their treatment. This is in contrast to systemic therapies, such as chemotherapy, which travel throughout the body. At high doses - many times greater than those used for X-ray exams - radiation can kill cancer cells and shrink tumors. These side effects depend on your age, how much radiation you get and what body parts are treated. In this technique, a large machine called a linear accelerator delivers high-energy radiation to the affected area. Harris will provide technology for CTSI’s oncology clinics and work to develop healthcare IT and clinical solutions. External beam radiotherapy is also treatment of choice in the elderly, as it is the least invasive method of curing the cancer and has equivalent cure chance. The treatment is not “sensed” by the body and after the treatment is over (10 minutes)the patient departs hospital unaware of any therapy related effects. Normal cells are programmed to stop reproducing (or dividing) when they come into contact with other cells.


There are two main types of radiation therapy: external radiation therapy, where a beam of radiation is directed from outside the body, and internal radiation therapy, also called brachytherapy or implant therapy, where a source of radioactivity is surgically placed inside the body near the tumor. Treatment can be given once or twice a day, depending on the treatment protocol being used. This delivers very intense radiation to a small area of the body and limits the dose to normal tissue.
More than half of all cancer patients receive some radiation therapy as part of their treatment. The side effects you may get depend on your radiation dose and what body parts are treated.
The linear accelerator creates high-energy radiation to treat cancers, using electricity to form a stream of fast-moving subatomic particles. The part where cancer is affected is treated with rays that are the affected part is burned so that the germ does not stay deep and does not do any sort of cell division and multiply its own existence. However, towards the end of the 7.5 weeks, urinary frequency and slowing occur and often some tiredness and increased call to stool. In the case of a tumor, this stop mechanism is missing, causing cells to continue to divide over and over. Treatments are given 5 days a week for several weeks, depending on the total final dose of radiation that is planned. Internal radiation therapy allows the doctor to give a higher total dose of radiation in a shorter time than is possible with external treatments. You'll receive this form of radiation as an outpatient in daily sessions over five to seven weeks, depending on your particular situation. Patients are given a break from treatment on weekend days to give normal cells some time to heal, thus reducing side effects. Pharmacists are constantly into the research to invent new drugs which can be applied in the therapy and keep the patient alive for a longer time. A person receiving external radiation therapy is not radioactive or dangerous to the people around him or her.
Depending on the substance, the implant may be temporary or permanent, although the effect wears off over time in all cases.
Depending on the type of radiation source, patients with radiation implants may need to be isolated from visitors for a period of time, so as not to expose others to radioactivity.



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