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1 From the Division of Radiation Therapy, Department of Radiology, University of Minnesota Hospitals, Minneapolis, Minnesota
There are problems inherent in the currently employed methods of interstitial implantation of radioactive materials for therapeutic purposes. To eliminate some of these difficulties, a new uncomplicated technique has been developed and is here described. Advantages of the method are: (1) the implant is permanent, (2) the radioactive sources are nonmetallic and are not rigid, (3) the procedure can be employed in relatively inaccessible sites, and (4) the dose to the operator and operating room personnel is low because an after-loading technique is used.
This method has been found to be especially valuable in debilitated patients and in those with lesions difficult to treat by conventional means because of anatomic factors, prior radiation therapy, or both.
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