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Topic: Unsealed source radiotherapy

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	Radiotherapy - The Doctors Lounge(TM)
		Radiation therapy (or radiotherapy) 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).
		Although radiotherapy is often used as part of curative therapy, it is occasionally used as a palliative treatment, where cure is not possible and the aim is for symptomatic relief.
		Radiotherapy is commonly used for the treatment of malignant tumors.
	www.doctorslounge.com /oncology/procedures/radiotherapy.htm (725 words)

	Station Information - Radiation therapy
		Radiation therapy (or radiotherapy) 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).
		Although radiotherapy is often used as part of curative therapy, it is occasionally used as a palliative treatment, where cure is not possible and the aim is for symptomatic relief.
		Three main divisions of radiotherapy are external beam radiotherapy or teletherapy, brachytherapy or sealed source radiotherapy and unsealed source radiotherapy.
	www.stationinformation.com /encyclopedia/r/ra/radiation_therapy.html (319 words)

	Q & A: Safety and Security of Radioactive Sources
		Radioactive sources are used throughout the world for a wide variety of peaceful and productive purposes in industry, medicine, research and education, and in military applications.
		These sources utilize radioactive materials that are firmly contained or bound within a suitable capsule or housing; although some sources involve radioactive materials in an unsealed form.
		Some sources may not be formally "orphaned" but their control may be weak and therefore vulnerable to being mishandled or lost.
	www.iaea.org /NewsCenter/Features/RadSources/radsrc_faq.html (1442 words)

	Radiation therapy - Wikipedia, the free encyclopedia
		Radiotherapy is commonly used for the treatment of tumors.
		The most common tumors treated with radiotherapy are breast cancer, prostate cancer, lung cancer, colorectal cancer, head and neck cancers, gynaecological tumors, bladder cancer and lymphoma, although the cancer's stage (progress) and invasion into lymph nodes, as well as other health and (unfortunately) monetary factors affect which treatment will have the greatest possibility of success.
		Three main divisions of radiotherapy are external beam radiotherapy (XBRT) or teletherapy, brachytherapy or sealed source radiotherapy and unsealed source radiotherapy.
	www.wikipedia.org /wiki/Radiation_therapy (1612 words)

	Unsealed source radiotherapy. Who is Unsealed source radiotherapy? What is Unsealed source radiotherapy? Where is ...
		Unsealed source radiotherapy relates to the use of soluble forms of radioactive substances which are injected into the body.
		It takes about 2-3 days for the radioactivity to reduce to the point where the patient is not a radiation danger to bystanders.
		There are strict radiation protection regulations governing the use of these sources.
	www.knowledgerush.com /kr/encyclopedia/Unsealed_source_radiotherapy (285 words)

	Radiation therapy -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-11-01)
		Although radiotherapy is often used as part of curative therapy, it is occasionally used as a (Click link for more info and facts about palliative treatment) palliative treatment, where cure is not possible and the aim is for symptomatic relief.
		Radiotherapy is commonly used for the treatment of (An abnormal new mass of tissue that serves no purpose) tumors.
		It is also common to combine radiotherapy with (The branch of medical science that treats disease or injury by operative procedures) surgery and/or (The use of chemical agents to treat or control disease (or mental illness)) chemotherapy and/or (Click link for more info and facts about hormone therapy) hormone therapy.
	www.absoluteastronomy.com /encyclopedia/r/ra/radiation_therapy.htm (1453 words)

	Radiation therapy Article, Radiationtherapy Information (Site not responding. Last check: 2007-11-01)
		Although radiotherapy is often used as part of curative therapy,it is occasionally used as a palliative treatment, wherecure is not possible and the aim is for symptomatic relief.
		The most common tumours treated with radiotherapy are breast cancer, prostate cancer, lung cancer, colorectalcancer, head and neck cancers, gynaecologicaltumours, bladder cancer and lymphoma, although the cancer's stage (progress) and invasion into lymphnodes, as well as and other health and (unfortunately) monetary factors affect which treatment will have the greatest possibilityof success.
		The differencesrelate to the position of the radiation source; external is outside the body, while sealed and unsealed source radiotherapy hasradioactive material delivered internally.
	www.anoca.org /radiotherapy/cancer/radiation_therapy.html (1039 words)

	Radiation therapy (Site not responding. Last check: 2007-11-01)
		Other rare uses are to wipe out the immune system prior to transplant to reduce the incidence of tissue rejection, called TBI or Total Body Irradiation; to calm hyperactive muscles -- such as might cause twitchy eyes -- with mild superficial treatments; and to form scar tissue around a stent to reinforce the vascular wall.
		Radiation therapy is usually given daily, the dose depends primarily on tumor type, but many other factors such as whether radiation is given alone or with chemotherapy, before or after surgery, the success of surgery and its findings and many other reasons that are considered by the treating doctor (known as a radiation oncologist).
		Roughly half of the 2500 worldwide radiotherapy clinics are in the US (as of 2001).
	www.encyclopedia-1.com /r/ra/radiation_therapy.html (848 words)

	Radiotherapy
		External beam radiotherapy External beam radiotherapy is the most common form of X-rays is pointed at a particular part...
		Sealed source radiotherapy Sealed source radiotherapy or brachytherapy is the application of radiation from close range...
		Unsealed source radiotherapy Unsealed source radiotherapy relates to the use of soluble forms of radioactive substances...
	www.brainyencyclopedia.com /topics/radiotherapy.html (61 words)

	Patient Care - Batavia Radiation Oncology Center
		The source of radioactivity is removed between treatments.
		Sealed radiation source: A metal seed or capsule containing a radioisotope, used for brachytherapy procedures.
		Unsealed internal radiation therapy: Internal radiation therapy given by injecting a radioactive substance into the bloodstream or a body cavity.
	www.bataviaradonc.org /ptcare/glossary.shtml (1009 words)

	Science Fair Projects - Nuclear medicine
		Nuclear medicine is the branch of medicine that uses unsealed radioactive substances in diagnosis and therapy.
		One of the more common unsealed source radiotherapies is radioiodine administration.
		Radiation dose to a patient from a nuclear medicine study depends on the physical half-life of the radionuclide (the rate of radioactive decay) in conjunction with the initial level of radioactivity introduced, and the biological half-life of the radionuclide (the rate of excretion from the body).
	www.all-science-fair-projects.com /science_fair_projects_encyclopedia/Scintigraphy (1025 words)

	Radiation therapy - Definition up Erdmond.Com
		(or radiotherapy) 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).
		The most common tumours treated with radiotherapy are breast_cancer, prostate_cancer, lung_cancer, colorectal_cancer, head_&_neck_cancers, gynaecological_tumours, bladder_cancer and lymphoma, although the cancer's stage (progress) and invasion into lymph nodes, as well as and other health and (unfortunately) monetary factors affect which treatment will have the greatest possibility of success.
		Three main divisions of radiotherapy are external_beam_radiotherapy (XBRT) or teletherapy, brachytherapy or sealed_source_radiotherapy and unsealed_source_radiotherapy.
	www.erdmond.com /Radiation_therapy.html (778 words)

	Types of Radiotherapy
		Radiotherapy can be classified into different types based on the positioning of the radioactive source.
		When the radiation source is present inside the body very close or inside the tumor then it is called as internal radiation.
		It is divided into two; the source is either placed in small sealed vials called the implants (sealed source radiotherapy) or can be directly injected in to the vein (unsealed source radiotherapy).
	www.medindia.net /patients/PatientInfo/Radiotherapy_Types.htm (376 words)

	University College London Hospitals NHS Trust (Site not responding. Last check: 2007-11-01)
		The Radiotherapy Department has a policy of Quality Assurance for Radiotherapy and is accredited to ISO 9002.
		This requires that we account for the social, psychological and physical needs of the patients and their carers, to the extent necessary to achieve maximum benefit from their treatment.
		Radiotherapy is currently based at the Middlesex Hospital.
	www.uclh.org /radiographyjobs/department.htm (129 words)

	Radiotherapy - The Doctors Lounge(TM)
		Radiotherapy is commonly used for the treatment of malignant tumors.
		Radiation therapy is commonly applied just to the localized area involved with the tumor.
		Although the actual treatment is painless, using external radiation (see below) to tackle tumors inevitably leads to side effects.
	www.thedoctorslounge.net /oncology/procedures/radiotherapy.htm (749 words)

	Radiotherapy: 3D View of the Web (Site not responding. Last check: 2007-11-01)
		See live article Sealed source radiotherapy Sealed source radiotherapy or brachytherapy is the application of radiation from close range and is used for techniques where the radioactive source is placed inside...
		See live article Unsealed source radiotherapy Unsealed source radiotherapy relates to the use of soluble forms of radioactive substances which are injected into the body.
		Radiotherapy Associates of Upstate New York - Radiotherapy Associates of Upstate New York This multi-site private radiation cancer clinic treats patients in the New York State areas near...
	www.resolve3d.com /Health/Medicine/MedicalSpecialties/Oncology/Radiotherapy (2374 words)

	Radiation therapy - Gurupedia
		Radiotherapy is commonly used for the treatment of tumours.
		It is also common to combine radiotherapy with surgery and/or chemotherapy and/or
		Radiation therapy is usually given daily, the dose depends primarily on tumor type, but many other factors such as whether radiation is given alone or with chemotherapy, before or after surgery, the success of surgery and its findings and many other reasons that are considered by the treating doctor (known as a radiation oncologist).
	www.gurupedia.com /r/ra/radiotherapy.htm (887 words)

	ICRU Publications
		The report is concerned only with gamma-ray sources and only with those aspects of the specification of such sources, which relate to the quantity of radioactive material and the radiation emmited.
		The choice and use of instruments are discussed in four sections dealing respectively with sealed gamma-ray sources and sources of x rays and electrons, unsealed radioactive sources, reactors and sealed neutron sources, and accelerators of charged particles.
		Gamma-ray spectrometry, based on the measurement of the spectral distribution of the photon fluence, is used for the determination of activity levels in the ground or in the air and of radionuclide-specific dose quantities.
	www.icru.org /pubs_cat.htm (10471 words)

	Wikinfo \| Radiation therapy (Site not responding. Last check: 2007-11-01)
		Implanting radiactive sources has the usual side effects associated with invasive proceedures.
		Radiation therapy is usually given daily for up to 35-38 fractions (a daily dose is a fraction).
		Images, some of which are used under the doctrine of Fair use or used with permission, may not be available.
	www.wikinfo.org /wiki.php?title=Radiation_therapy (678 words)

	Department & Units - Department of Clinical Oncology (Site not responding. Last check: 2007-11-01)
		Brachytherapy is a specialised form of radiotherapy where radiation source is placed closed to the target tissue.
		Unsealed source eg I131 and P32 is used commonly in the treatment of thyroid and bone marrow disease respectively.
		Sealed sources are used in various forms of implants eg gynaecological cancer.
	www.ha.org.hk /qeh/dept_onco_brach.html (116 words)

	Ultrasonic Far Infrared Ozone Spa - brachytherapy
		Sealed source radiotherapy or brachytherapy is the application of radiation from close range and is used for techniques where the radioactive source is placed inside the area requiring treatment.
		In cancer medicine, the cancer needing treatment can be in the lining of a tube like the esophagus or 'food tube', in which case a radioactive source can be lowered into the esophagus and left there to irradiate its X-rays into the cancer (assuming the source is placed next to the cancer!).
		The liquid ionization chamber is a probe for high accuracy measurements of the absorbed dose in radiation fields for radiotherapy and radiography, IV-brachytherapy radiosurgery and CT-scanner.
	www.ultrasonicspabath.com /cancer/brachytherapy.html (820 words)

	Radiological Physics Group (Site not responding. Last check: 2007-11-01)
		Computed tomography (CT) is probably the greatest single source of man-made medical radiation and the relationship between radiation dose to the patient and image quality must be optimised.
		Images taken using the synchrotron radiation source in Trieste showed remarkable tumour contrast when a novel technique known as diffraction enhanced imaging was used.
		A key stage in the process of controlling this dose is the standardisation of the procedures for instrument calibration and for dose measurement in the clinic.
	www.icr.ac.uk /physics/rtphysics/cradrep.htm (2069 words)

	OUP: Radiotherapy Physics (2/e): Williams
		Radiotherapy has been one of the principal modalities for the treatment of malignant disease for more than 50 years.
		In addition, the clinical application of ionizing radiations for therapy is based on the foundation of dosimetric concepts and instrumentation.
		Trainee and qualified medical physicists, radiographers, radiation oncologists, and other personnel involved in radiotherapy will find this book to be an excellent guide to this important specialty.
	www.oup.co.uk /isbn/0-19-262878-X (484 words)

	Unsealed source radiotherapy (Site not responding. Last check: 2007-11-01)
		Unsealed source radiotherapy relates to the use of soluble forms of radioactive substances which are injected into the body.There is one common feature to all these substances, and that is the biological role of the non-radioactive parent substance.
		For example, iodine is an element selectively taken up by the thyroid gland inhealthy people.
		It takes about 2-3 days for the radioactivity to reduce to the point where the patient is not a radiation danger tobystanders.
	www.therfcc.org /unsealed-source-radiotherapy-108576.html (274 words)

	The Royal Marsden Hospital - Clinical Units - Thyroid (Site not responding. Last check: 2007-11-01)
		Expertise is drawn from the Departments of Medicine, Surgery, Radiotherapy, Nuclear Medicine, Physics and from the Institute of Cancer Research.
		On the latter site there is a refurbished three bedded istotope suite for the care of patients receiving high dose unsealed source radioactivity; each of the separate rooms has full en-suite facilities.
		For anaplastic cancer, both physical and biological optimisation of external beam radiotherapy is required to improve the poor control of locoregional disease; conformal planning is therefore being developed in association with accelerated fractionation.
	www.royalmarsden.org /clinicalservices/clinicalunits/thyroid/thyroid.asp (993 words)

	Addenbrooke's Hospital: Facilities in the Oncology Centre
		A full brachytherapy service for sealed and unsealed source treatments, including a medium dose rate selectron for gynaecological treatments and an iodine suite for thyroid conditions.
		A computerised treatment-planning system is used for radiotherapy, which has been recently updated to include full three-dimensional facilities for conformal therapy.
		This will soon be linked to the computerised radiotherapy equipment, to allow high accuracy of verification and recording of radiotherapy treatment.
	www.addenbrookes.nhs.uk /serv/clin/oncol/oncol_facilities1.html (351 words)

	Trustworthy Source Of Advice
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		1 Article tagged with "trustworthy source of advice"
		a disinterested and well-practiced listener who provides a trustworthy source of advice and direction.
	www.mdjunction.com /tags/trustworthy-source-of-advice (59 words)

	wiki/Unsealed source radiotherapy Definition / wiki/Unsealed source radiotherapy Research (Site not responding. Last check: 2007-11-01)
		wiki/Unsealed source radiotherapy Definition / wiki/Unsealed source radiotherapy Research
		Unsealed source radiotherapy relates to the use of solubleA solvent is a liquid that dissolves a solid, liquid, or gaseous solute, resulting in a solution.
		In contrast, diagnostic radiology employs X-rays and other modalities for diagnostic imaging....
	www.elresearch.com /wiki/Unsealed_source_radiotherapy (1087 words)

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