子宮頸癌遠隔及近接放射線治療之劑量分布

RADIATION TREATMENT OF CERVICAL CANCER BY TELETHERAPY AND BRACHYTHERAPY SOURCES WITH REFERENCE TO DOSE DISTRIBUTION

蔡飛龍(Fei-Lung Tsai) ； 林繁幸(Fan-Sin Lin) ； 柯天龍(Tien-Long Ko) ； 李文化(Wen-HuaLi) ； 許彬杰(Pin-Chieh Hsu) ； 翁寶山(Pao-Shan Weng) ； 唐子富(Tzu-Fuh Tang)

《中華放射線醫學雜誌》 4卷4期 (1979/12) Pp. 333-347

摘要

本實驗乃係探討應用放射線治療法對經手術割除治療興未經手術割除治療的子宮頸癌病患的放射線治療時應用自製的鏑活化硫酸鈣熱發光劑量計配合放射治療專用之女性假體，度量各種放射線治療方式的劑量分布情況。文中討論近接治療所使用的鈷六十與鐳二二六射源間相互劑量的關係。復對近接治療時治療劑量的計算值與實測值之間作一比較。實驗結果顯示，鈷六十射源於各特定點A、A'、B、B'及C的計算值比實測值低11～35%。而鐳二二六射源於A、A'、B及B'各特定點的計算值比實測值高7.0～21%，但C點的計算值却比實測值低19%，這些差異值在以計算值決定給予劑量時必須分別加以修正。

並列摘要

The radiotherapeutic methods of cervical cancer were studied either with post operation or radiotherapy alone. The dose distribution in a female special Rando phantom was measured with self-fabricated thermoluminescent dosimeter CaSO_4 : Dy. The differences of both brac-hytherapy sources of ^(60)Co and ^(226)Ra were compared and the dose distribution in phantom of both sources was made. The experimental results show that the doses calculated for ^(60)Co at points A, A', B, B' and Care 11-35% lower than the doses measured, and for ^(226)Ra at points A, A', B and B' the doses calculated are 7.0 - 21% higher than the doses measured except at point C where the dose calculated is 19% lower than the dose measured. These factor should be taken into account when a therapeutic dose is given dose.