6 MV 광자선의 투과성필터와 Wedge 선속을 이용한 부비강의 균등선량계획

• 영문명: Homogeneous Dose Planning to Paranasal Sinus with the Partial Attenuation filters and Wedged Beams in 6 MV Photon Beam
• 발행기관: 대한방사선종양학회
• 저자명: 최태진 (Tae Jin Choi) 이호준 (Ho Joon Lee) 김옥배 (Ok Bae Kim)
• 간행물 정보: 『대한방사선종양학회지』제11권 제1호, 183~191쪽, 전체 9쪽
• 주제분류: 의약학 > 종양학
• 파일형태: PDF
• 발행일자: 1993.06.30

영문 초록

The homogeneous dose planning is one of the most important roles in radiation therapy. But, it is not easy to obtain a homogeneous dose to paranasal sinus region including the ethmoidal sinus with conventional irradiation techniques. In this experimental study, the authors tried to get a homogeneous dose at PNS region, but the nasal cartirage does not exceed the tolerance dose. with anterior-posterior beam and two both lateral wedged beams. Used three fields were shielded with full thickness of blocks to preserve the eye-balls and with blocks of one half value layer to create a homogeneous dose at the whole treatment volume. The dose computations are based on the three dimensonal structure with modified scatter contributions of partial shielders and attenuated beams in 6 MV photon beams. The dose dirtributions of mid-plane is examined with Kodak verification films and teflon-embedded TLD rod (1 mm diameter and 6 mm length) to confirm the computed dose. In our study, the whole PNS regions have shown within 85% of the resultant isodose curves with relatively homogeneous dose distribution. The results of dose computation and measurements are agree well within 5% uncertainties.

목차

abstract

서론

대상 및 방법

결과

고찰

결론

REFERENCES

키워드

Partial Filter Homogeneous Dose.