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題名:三度空間電腦放射治療計劃系統之驗收與測試     (16點)
3-D Radiotherapy Treatment Planning System Acceptance Test
著者:林盈釧(Ying-Chuan Ling) ;吳簡坤(Jian-Kuen Wu) ;黃英強(David Y. C. Huang) ;簡哲民(James J. M. Jian)
出版地區:台灣
出版城市:台北市
學科:醫學綜合
關鍵字:三度空間電腦放射治療計劃系統 ; 驗收過程 ; 射束資料 ; 臨床應用 ; 3-D RTP ; ATP ; Beam data ; Clinical application
刊名:放射治療與腫瘤學
頁碼:303-310
語言:繁體中文
摘要: 中文摘要PDF ; 英文摘要PDF

且且: 如何使三度空間電腦放射治療計劃系統( 3-D Radiotherapy Treatment Planning System, 3-D RTP) 計算所得之等劑量曲線分佈與水假體量測出來之結果取得合理的一致性,是RTP驗收過程(Ac ce pta n c eTest Procedure, ATP) 中重要的課題, 也是病人接受高品質放射線治療的重要因素。 姐姐旦去注: 本文係針對Com p ute rize d Medical System - Focus 1. 4 . 0 及H e l a x - TMS 4 . 0 版系統逐項作一驗收測試,並且評估其間之誤差值是否合理以及運用於臨床上之治療是否可行。ATP分成硬體及軟体兩部份,硬體包括網路之連結及影像之傳輸功能,屬於3- D RTP;本身數位板(digitizer) 的準確性,繪圖機的放大率及準確度及病人資料保存( bac k u p)之完整性與方便性。軟體部份有光子及電子射束的百分深度劑量( P e rc e n ta ge Depth Dose) 、等劑量曲線分佈( i sod o se di stributi on) 及射束剖面圖(beam profile) 的比對; 以及針對光子射束的開放性照野(open-field) 、模形濾板(wedge) 、組織填充物(bolu s) 、非生句句密度組織(in h om ogeneitie s) 、鉛擋塊(bl ock) 及多葉型準直儀(Multi-Leaf Collimator, MLC) 修正後的劑量比對; 另外電子的斜角度劑量分佈(o bl i q u e in cide n ce) 也是驗收項目。由於治療計畫是以電腦斷層影像為基礎,因此院內放射治療網路系統的I E M E N S 叫HI S)之連結及影像傳輸系統之設施亦需針對其特點逐一驗收測試,以利於整體之應用操作。 益星: 以H e l ax-T M S 而言, 開放性照野部份, 若照野大於2 0 x 20 則觸角效應( h o rn effe ct) 會明顯增大,最大約2 克的劑量誤差。而模形濾板部份照野不宜過大,若~ll野大於10 x 1 0 則的。及60。模形濾板會有約3 % 之劑量誤差。鉛擋塊及多葉型準直儀的半影區則較71<.假体所量測之{直有大約2 一3 mm 之誤差。對CMS-Fo cu s 而言, 在開放性照野部份, 觸角效應並不會隨照野之大小而有所改變,其劑量誤差值有2 %。模形;慮板之劑量誤差值約在2兒, 照野適用範圍可開至最大值2 0 cm 。而鉛擋塊及多葉型準直儀之半影區則有l 一2 mm 之誤差。 起益: 對於以上驗收測試的結果, 網路之連結及影像之傳輸皆可正常之運作,而劑量至于佈之誤差值皆在放射線治療可接受的範圍內,因此也確定本院兩套3-D RT P 可應用於臨床放射線之治療。
Purpose: The import ant subject of 3-D radiot herapy treatment plann ing system ( 3-D RTP) acceptance test procedure (ATP) is to get the reasonable agreement between the calc ulated isodose distribution of 3-D RTP and the measured result s of water phantom, before the clinical use of 3-D RTP system. Materials & Methods: Thi s report is a acceptance test results of Computeri zed Medical System - Focus 1.4.0 and Helax - TMS 4.0. Acceptance test procedu re includ es hardw are and software. Hardware includes the function of the link of Network system, the function of the image transfer system, the accuracy of the digitizer, the magnification and accuracy of the plotter, the function of the printer and the pat ient data backup fac ility. Software includes the comparison of percentage depth dose for photon beam and for electron beam, isodose distribution check and beam profil e check. The compar isons of photon beam include open-field, wedge-field , half-beam, asymmetric jaws, irregular-field , bolu s, inhomogeneities, block-field and Multi -Leaf Collimator MLC). The electron oblique incidence is also one of the test items. Results: For Helax-TMS , if the fie ld size is more than 20 x 20, the open-field horn effect will be increased , the maximum dose deviation about 2%. It's about 3% dose deviation of 45° and 60° wedge filter of the field size more than lO x 10. The penumbra error of block and MLC is 2-3 rnrn compared with water phantom data . For CMS-Focu s, the horn effect is independent of field size and the dose deviation about 2%. The field size of wedge filter can open to a maximum of 20 cm and the dose deviation is 2%. The penumbra error of block and MLC, compared to water phantom, about 1-2 mm. Conclusion: In concl usion, the functions of network and include image- transfer are acceptable and the isodose distribution discrepancies are also acce ptable for the clinical radiotherapy treatm ent application.


    

本卷期目次
放射治療與腫瘤學
Study of Treatment Variation in the Radiotherapy of Pelvic Tumors Using a New Custom-Made Immobilization Cast and On-Line Electronic Portal Imaging/ Wen-Cheng ChenJr-Wei HerJami-Yi YehChien-Sung Hungshuo-Shung HungYuan-Chian LinNgan-Ming TsangWai-Man LeungSimon G. TangJi-Hong HongRobter TanChung-Chi Lee
The Role of Radiotherapy for Advanced Non-Small Cell Lung Cancer/ Shih-Che ChiuKou-Hwa ChangYu-Jen ChenChang-Hung ChungYuen-Liang LaiMeng-Hao Wu
成人低惡性度顱內星狀細胞瘤之術後放射治療/ 張東杰容世明魏國珍曾振凎陳尚文
攝護腺癌之傳統放射線治療—長庚紀念醫院十四年之經驗/ 陳妙芬陳文政梁為民張慧朗朱聖賢莊正鏗廖宗琦林永昌吳俊德洪志宏
三度空間電腦放射治療計劃系統之驗收與測試/ 林盈釧吳簡坤黃英強簡哲民
肝癌治療核醫藥物[(上標 125)I/(上標 131)I]Iododeoxyuridine之合成與配方研究/ 王信二季匡華顏上惠陳富都周衛樂黃廣良魏孝萍丁幹
A Phase Ⅱ Study of Neoadjuvant Interferon Alfa-2B and Concurrent Interferon and Radiotherapy in Primary Untreated Undifferentiated Carcinoma of Nasopharynx/ Shen-Yen LinKwan-Hwa ChiChi-Kong LawSang-Hue Yen
Preoperative Radiotherapy in Patients with Lower Rectal Cancer: Results of Sphincter-Preservation, Treatment Outcome and Morbidities/ Shyh-An YehHong-Hwa ChenChong-Jong WangTsung-Min LinEng-Yen HuangChing-Yeh Hsiung
電子射束遮擋照野之劑量特性/ 林賢岳黃旼儀湯人仰黃英明黃志仁何耀輝郭珍妮
Comparison of Clinical Outcome in Hypopharyngeal Cancer Treated with Radiotherapy Alone or Surgery Combined with Adjuvant Radiotherapy- 10 Years, Experience in Mackay Memorial Hospital/ Ming-Chih WangYi-Shing LeuKuo-Hwa ChangYuen-Lainag LaiChang-Hung ChungMeng-Hao WuYu-Jen Chen
攝護腺癌之傅統放射線治療--長庚紀念醫院十四年之經驗/ 陳妙芬陳文政梁為民張慧朗朱聖賢莊正鏗廖宗琦林永昌吳俊德洪志宏
Preoperative Radiotherapy in Patients with Lower Rectal Cancer: Results of Sphincter-Preservation, Treatment Outcome and Morbidities/ Shyh-An YehHong-Hwa ChenChong-Jong WangTsung-Min LinEng-Yen HuangChing-Yeh Hsiung
Comparison of Clinical Outcome in Hypopharyngeal Cancer Treated with Radiotherapy Alone or Surgery Combined with Adjuvant Radiotherapy-10 Years, Experience in Mackay Memorial Hospital/ Ming-Chih WangYi-Shing LeuKuo-Hwa ChangYuen-Laiang LaiChang-Hung ChungMeng-Hao WuYu-Jen Chen
A Phase Ⅱ Study of Neoadjuvant Interferon Alfa-2B and Concurrent Interferon and Radiotherapy in Primary Untreated Undifferentiated Carcinoma of Nasopharynx/ Shen-Yeh LinKwan-Hwa ChiChi-Kong LawSang-Hue Yen
成人低惡性度顱內星狀細胞瘤之術後放射治療/ 張東杰容世明魏國珍曾振凎陳尚文
The Role of Radiotherapy for Advanced Non-Small Cell Lung Cancer/ Shih-Che ChiuKou-Hwa ChangYu-Jen ChenChang-Hung ChungYuen-Liang LaiMeng-Hao Wu
肝癌治療核醫藥物[125Ⅰ/131Ⅰ]Iododeoxyuridine之合成與配方研究/ 王信二季匡華顏上惠陳富都周衛樂黃廣良魏孝萍丁幹
Study of Treatment Variation in the Radiotherapy of Pelvic Tumors Using a New Custom-Made Immobilization Cast and On-Line Electronic Portal Imaging/ Wen-Cheng ChenJr-Wei HerJami-Yi YehChien-Sung Hungshuo-Shung HungYuan-Chian LinNgan-Ming TsangWai-Man LeungSimon G. TangJi-Hong HongRobert TanChung-Chi Lee
三度空間電腦放射治療計劃系統之驗收與測試/ 林盈釧吳簡坤黃英強簡哲民
電子射束遮擋照野之劑量特性/ 林賢岳黃旼儀湯人仰黃英明黃志仁何耀輝郭珍妮
 
   
 
   

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