Development of Source Template ICRT Dose Planning Software for Uterine Cervix Using the HDR: 192Ir / 의학물리

ABSTRACT

The source position and source dwelling time in a given source arrangement in the applicators is very high effect to determine the expose time which in general is derived from the brachytherapy planning system. In high dose rate (HDR) intracavitary radiation therapy (ICRT), the treatment is often performed in based out-patient during the whole fractionation irradiations. However, the patient should be waited on coutch for ICR treatment in first start fraction as unconvinent and immobilized state until perform the dose plannings. In our experiments, the HDR source contributed dose for 55.89+/-4.20% for straight tandem source, 38.14+/-4.46% for the right ovoid soucre on the fornix and 5.97+/-0.50% for left ovoid source. It also showed the 60.33+/-6.53% for the tandem, 33.10+/-6.74% for right ovoid and 6.58+/-0.30% for the left ovoid source in 10 degrees of applicator. The authors designed the source template dose planning software for ICRT of uterine cervix results average -0.55+/-2.15% discrepancy of the full charged brachytherapy dose planning. Developed Source temperate ICRT plaanning software guide a minimized the complains and operating times within a +/-3% of dose discrepancies.