Preliminary Research of Tissue Heterogeneity Correction for Dose Distribution of ^<125>I Brachytherapy Source
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概要
- 論文の詳細を見る
Tissue heterogeneity is commonly observed in clinical brachytherapy source implants. In some cases, an obvious variance in dose distribution will be caused by application of the AAPM recommended formulas, which are only valid for a homogeneous medium. By taking soft tissue as the base and considering adipose, air and bone as the separate interlayers, an evaluation model is established and dose correction formulas are derived for a single 125I source in this study. The applicability of correction formulas is validated at different interlayer thicknesses and angles by Monte Carlo (MCNP 4C) simulations. The results show fairly good agreement between correction formulas and MC simulations with overall maximum variances of 1.62±0.06, 5.93±0.23, and 8.41±0.33% for adipose, air, and bone, respectively.
- 一般社団法人 日本原子力学会の論文
- 2009-04-01
著者
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Sun Liang
School Of Radiation Medicine And Public Health Medical Coll. Of Soochow Univ.
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Sun Liang
School Of Radiation Medicine And Public Health Medical College Of Soochow University
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YU Hongliang
School of Radiation Medicine and Public Health, Medical College of Soochow University
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Yu Hongliang
School Of Radiation Medicine And Public Health Medical College Of Soochow University
関連論文
- Preliminary Research for Mutual Dose Perturbation Influence of ^I Brachytherapy Source
- Preliminary Research of Tissue Heterogeneity Correction for Dose Distribution of ^I Brachytherapy Source