travel guide & maps : singapore - indonesia - malaysia cancer resources singapore guide editorials all singapore malaysia indonesia eg: business or abc kids or ocracoke or nature art travel health medical cars technology home family business interest woman editorials » medical » cancer what is brachytherapy? By: there are several ways of giving radiation dosage to a cancerous tumor. The most common method is to deliver the required dosage from an external beam of radiation produced outside the body. In this case the source of radiation beam is located 80-100 cm from the body of the person receiving radiation. Sometimes placing the source of radiation within the tumor might have advantages over delivering radiation from an external source. This method of delivering required radiation from an internal source embedded within the tumor is called brachytherapy. If you are aware of the inverse square law in physics you would know the dosage of radiation therapy delivery changes by a great proportion depending upon the distance of the radiation source to the intended target. In brachytherapy the source of radiation is within the tumor volume and the proper placement of these sources of radiation within the tumor is of crucial importance. There are several radioactive isotopes used in the brachytherapy. These include radium-226, cesium-137, cobalt-60, iridium192, iodine-125, gold-198 and palladium-103. Radium has a longer half-life compared to some of the other radioactive isotopes. In the past radium was the primary isotope used in brachytherapy, but recently radium has been largely replaced by cesium, gold and iridium, which have relatively shorter half-life and lower energies and because of this the radiation from these isotopes can be easily shielded. Brachytherapy can be delivered with devices known as implants. These devices may be in the form of needles or seeds or ribbons. Brachytherapy can be delivered with permanent or temporary implants. These implants might be temporary or permanent. generic viagra online pharmacy indiabuy cheap viagranationalityinworldhistory.net/bsh-viagra-non-prescription-alternative-uc/viagra without a doctor prescriptionbuy cheap viagraviagra online in ukcheap viagracheap generic viagraviagra for salebuy cheap viagra Temporary implants usually have a longer half-life and higher energies compared to the permanent implants. All temporary implants are inserted into the tumor during surgery. The duration of treatment for the temporary implant is usually 1-3 days. Interstitial low-dose rate (ldr) brachythe.
Welcome to Waste Tyre Collection Service online.
We hope you find all the information you need.
If you have any further enquiries please contact us.