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快速成型技術直接製作放射治療填充物之效能評估

The Evaluation of 3D Total Contact Bolus Production Procedure by Rapid Prototype Technique

摘要


目的:本研究係探討於人體表面進行放射治療時,製作完全貼附人體3D適形填充物之生成模組。其係整合逆向工程(Reverse Engineering)與人體數位模型系統之3D取像及成形技術,使用兩種快速成型機(Rapid Prototyping)製作密度不同之材料。 材料與方法:本研究使用塑膠粉末(PVC)膠合及液態樹脂(ABS)燒結成型填充物,以符合個案之人體3D適形填充物(bolus)實體。結果:本研究之3D適形填充物可完全貼附人體,可有效改變放射劑量深度,進而使皮膚劑量達到處方劑量。 結論:該3D適形填充物之製程經本研究之執行及驗證,可以標準作業程序生成模組,生成最佳化之3D適形填充物實體,希望在未來能提供放射治療輔助器材另一種選擇。

並列摘要


Purpose: This study shown the 3D total contact bolus of human body can effectively improve the radiation dose of the skin surface during radiotherapy. Material and Methods: When the 3D total contact bolus of human body be produced, we integrated 3D image and reverse engineering technology to a 3D Anthropometric Phantom Study, and used rapid prototyping technique to produce a 3D total contact bolus entity to the human body. Results: We have selected two materials in order to test which one is better for skin dose coverage. According to our study, 3D total contact bolus made by ABS (ACRYLONITRILE-BUTADIENE-STYRENE) can get the correct prescribed dose on skin surface. Conclusion: The manufacture process of 3D total contact bolus of human body can be an optimized standard operating procedure and it will be a useful tool for radiotherapy.

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