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項次 書目
1
題名:Optimization of Position and Exposure Time of Radioactive Source in High-Dose-Rate Afterloading Brachytherapy     (10點)
後荷式高劑量率輻射源暴露時間及位置最佳化之近接治療
著者:Liung S. Chao(趙良曉) ;Sang H. Yen(顏上惠) ;Yuh L. Lee(李玉麟) ;Cheng-Ying Shiau(蕭正英) ;Fu D. Chen(陳富都) ;Kuang Y. Chen(陳光耀)
出版地區:台灣
出版城市:台北市
學科:醫學綜合
關鍵字:後荷式高劑量率近接治療 ; 治療計畫 ; 最佳化 ; Afterloading high-dose-rate ; brachytherapy ; Treatment planning ; Optimization
刊名:Therapeutic Radiology and Oncology
頁碼:41-45
語言:英語
摘要: 中文摘要PDF ; 英文摘要PDF

後荷式高劑量率近接治療銥-九二單一射源,長3.5厘米,直徑1.1厘米,可遠距離程式化移動到預設的位置,在固定的時程內有2.5或5.0厘米兩種間距的移動方式。理論上對一固定治療方式射源位置及暴露時聞有無限多的排列方式。為獲得滿意的劑量曲線必須先決定最理想的射源位置及暴露時間的組合,可用線性方程組來計算,但大多數位置的暴露時問為負數值,本研究是發展一套數學方法計算射源數目位置及暴露時問的最佳組合,並且利用CMS治療計畫系統將劑量分佈畫出來,實際的考量則建立圓柱形劑量治療時間及位置表,劑量的誤差均在4%以內。進一步能計算單一平面三根插針近接治療,此原理能應用在更複雜的治療計畫。
In the high-dose-rate afterloading brachytherapy unit, the 3.5 mm in length and 1.1 mm in diameter Ir-192 single source is remotely and programmably moved into thc preset positions which can be 2.5 or 5.0 mm apart for a certain period of time. Theoretically, there are infinite arrangements of position and exposure time of the radioactive source for a given treatment. In order to produce satisfactory isodose curves, the best number and allocation of the source position and exposure time must be predetermined. Optimization of number, location and exposure time of the source can be calculated involving linear equations. Unfortunately, by direct calculation the exposure time can be negative for some positions. In this study, a mathematical method is developed to calculate the number and proper positions of the source and the exposure time in each position, the dose distribution can be plotted out by a plotter of CMS treatment planning system, By this algorithm we match the dose requirement as clinically needed. For practical consideration, a table of source dwelling-time for cylindrical dose contour is constructed. The dose distributions were found to corresponding within 4% as initially requested. Furthermore, using the multiple linear equation one can determine the position and exposure time for up to three needles on single plane brachytherapy. This principles can be applied to more complicated treatment plannings.


    

本卷期目次
Therapeutic Radiology and Oncology
Optimization of Position and Exposure Time of Radioactive Source in High-Dose-Rate Afterloading Brachytherapy/ Liung S. ChaoSang H. YenYuh L. LeeCheng-Ying ShiauFu D. ChenKuang Y. Chen
Quality Assurance in Modern Sophisticated LINAC Radiotherapy/ Max M. ChaoLiung S. ChaoYuh L. LeeSang H. YenKuang Y. Chen
Estimation of High-Energy Primary Photon-Induced Doses for Non Charged Particle Equilibrium Conditions/ Max M. ChaoGeorge E. Chabot
Conservation Therapy of Breast Cancer/ Andrew Y. H. YoungChi-Yuan YehYeun-Liang LaiKou-Hwa ChangChang-Hung ChungYi-Cherng Lai
Medulloblastoma: The Treatment Results and Literature Review/ Meng-Hao WuYuen-Liang LaiChi-Yuan YebChang-Hung ChungChung-Yu KaoKuo-Hwa Chang
Primary Malignant Lymphoma of the Breast-Three Cases Report/ Meng-Hao WuChung-Yu KaoWen-Haw SuYuen-Liang LaiChang-Hung Chung
抗癌藥Taxol與放射線的放射增敏作用:尋找最佳配合的理論基礎/ 季匡華周寬基張立平吳樂榮陳富都陳光耀
Characteristics, Advantages and Limitations of a Treatment Planning System for Gamma Knife Radiosurgery/ Ling-Wei WangCheng-Ying ShiauWen-Yuh ChungDavid Hung-Chi PanWan-Yuo GuoYuh-Ling LeeSang-Hue YenKuang Y. Chen
維生素丙對於放射線傷害之修復與預防效應的體外研究/ 許文林黃經民任益民盧昭元趙壯飛
白葉素在癌症化學治療上的用途/ 周寬基周絢蘭季匡華陳光耀
放射線診斷和治療學在中國大陸和台灣的發展史/ 陳光耀
全頭皮放射治療技術之劑量術評估/ 葉健一湯國政賴易成賴允亮
放射線診斷和治療學在中國大陸和台灣的發展史/ 陳光耀
抗癌藥Taxol與放射線的放射增敏作用:尋找最佳配合的理論基礎/ 季匡華周寬基張立平吳樂榮陳富都陳光耀
維生素丙對於放射線傷害之修復與預防效應的體外研究/ 許文林黃經民任益民盧昭元趙壯飛
Medulloblastoma: The Treatment Results and Literature Review/ Meng-Hao WuYuen-Liang LaiChi-Yuan YehChang-Hung ChungChung-Yu KaoKuo-Hwa Chang
Conservation Therapy of Breast Cancer/ Andrew Y. H. YoungChi-Yuan YehYeun-Liang LaiKou-Hwa ChangChang-Hung ChungYi-Cherng Lai
Optimization of Position and Exposure Time of Radioactive Source in High-Dose-Rate Afterloading Brachytherapy/ Liung S. ChaoSang H. YenYuh L. LeeCheng-Ying ShiauFu D. ChenKuang Y. Chen
Estimation of High-Energy Primary Photon-Induced Doses for Non Charged Particle Equilibrium Conditions/ Max M. ChaoGeorge E. Chabot
Quality Assurance in Modern Sophisticated LINAC Radiotherapy/ Max M. ChaoLiung S. ChaoYuh L. LeeSang H. YenKuang Y. Chen
全頭皮放射治療技術之劑量術評估/ 葉健一湯國政賴易成賴允亮
Characteristics, Advantages and Limitations of a Treatment Planning System for Gamma Knife Radiosurgery/ Ling-Wei WangCheng-Ying ShiauWen-Yuh ChungDavid Hung-Chi PanWan-Yuo GuoYuh-Ling LeeSang-Hue YenKuang Y. Chen
白葉素在癌症化學治療上的用途/ 周寬基周絢蘭季匡華陳光耀
Primary Malignant Lymphoma of the Breast-Three Cases Report/ Meng-Hao WuChung-Yu KaoWen-Haw SuYuen-Liang LaiChang-Hung Chung
 
   
 
   

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