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From the Departments of Biometry and Radiology at Health Sciences Division, Medical College of Virginia, Richmond, Virginia.
This paper reports on a method of determining optimal radium loadings for treatment of carcinoma of the cervix to deliver a predetermined dose level to a specified volume while holding the dose at any other point to preselected levels. The only data required to obtain a treatment loading are the coordinates of the after-loading applicators or dummy sources in situ and the coordinates of all other points of interest. These are easily obtained from orthogonal radiographs. The method is simple to use, quick and powerful, and enables the calculations to be determined accurately for radium therapy. It is anticipated that the system will be of practical value since it is ideally suited for use on remote computer terminals.
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