Viability of an isocentric cobalt-60 teletherapy unit for stereotactic radiosurgery
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چکیده
منابع مشابه
Barc Develops Cobalt-60 Teletherapy Machine for Cancer Treatment
Human cancer is probably as old as the human race. For normal cells, the growth, division and death of cells occur in a controlled manner. Cancer cells on the other hand multiply in an uncontrolled way creating tumors. Tumors may replace healthy tissues and often start spreading to other parts of the body, leading to a lifethreatening situation. If untreated, most cancers lead to protracted suf...
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While the current trend in radiotherapy is to replace cobalt teletherapy units with more versatile and technologically advanced linear accelerators, there remain some useful applications for older cobalt units. The expansion of our radiotherapy department involved the decommissioning of an isocentric cobalt teletherapy unit and the replacement of a column-mounted 4-MV LINAC that has been used f...
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BACKGROUND Previous publications have documented the damage caused to red blood cells (RBCs) irradiated with X-rays produced by a linear accelerator and with gamma rays derived from a 137Cs source. The biologic effects on RBCs of gamma rays from a 60Co source, however, have not been characterized. STUDY DESIGN AND METHODS This study investigated the effect of 3000 and 4000 cGy on the in vitro...
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"Stereotactic" is an exact radiotherapy treatment modality which implements invasive and non-invasive facilities for improving precise dose delivery. Stereotactic refers to three-dimensional localization of a specific point in space by a unique set of coordinates that relate to a fixed external reference frame. An accurate delivery of radiation is attainable using these techniques with high pre...
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The primary treatment of most sarcoma patients is surgery. The wider the excision, the lower the probability of local failure. For typical cases of non-CNS disease, adjuvant RT is offered in most cases in addition to surgery to optimize local control. However, bone and soft tissue sarcoma is historically considered a “radioresistant” tumor because conventionally fractionated radiation treatment...
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ژورنال
عنوان ژورنال: Medical Physics
سال: 1998
ISSN: 0094-2405
DOI: 10.1118/1.598383