放射線治療における照射位置の再現性に関する検討

概要

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It is essential that once the field is correctly planned, this set-up be capable of reproduction every day for treatment. But, a little displacement is unavoidable, even if the treatment field is carefully set. In this paper, the localization errors in the several parts of the body were observed. Fuji industrial film of type 80 was used for the study of localization error. The data of this study were obtained from 678 sheets of treatment film for 36 patients with tumor of the pituitary gland, ca. of the maxillary sinuses, ca. of the larynx, ca. of the esophagus and ca. of the uterine cervix. The largest standard deviation of error was 5mm in head region. In this region, 7.6 mm were observed due to the involuntary movement of patients. The errors of the other parts of the body were 4 mm or less and incidence of error due to unintentional movement was neglisible.
公益社団法人日本放射線技術学会の論文
1977-09-01