The Journal of Korean Society for Radiation Therapy (대한방사선치료학회지)
- Volume 1 Issue 1
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- Pages.70-78
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- 1985
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- 1598-8449(pISSN)
Comparison Study of Dose Rate and Physical Parameters in Low and High Dose Rate Intracavitary Radiation Systems for Carcinoma of the Uterne Cervix.
자궁경부암 강내 방사선조사에 있어서 고 및 저 선량율방법에 의한 선량율 비교 고찰
Abstract
The intrauterine irradiation is essential to achieve adequate tumor dose to centeral tumor mass in radio therapy for uterine malignancy. The complications of pelvic organ are known to be directly related to radiation dose and physical parameters. The comparison study of currently using 2 systems was undertaken. The simulation films and medical records of 135 patients who was treated with intrauterine irradiation at one of general hospitals in Busan and Seoul between Jan. 1983 and June 1983, were critically analized and physical parameters of low dose rate system and remote controlled high dose rate system were measured. The physical parameters include distances between lateral walls of vaginal fornices, longitudinal and lateral angles of tandem to the body axis, the distance from the external os of uterine cervix to the central axis of ovoids, the radiation dose ratio to rectum and bladder to reference point A. Followings were summary of study results: 1. In distances between lateral walls of vaginal fornices the low dose rate system showed wide distribution and relatively larger distances. In low dose rate system 5.0-5.9 cm was
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