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題名:評估傳統二維治療計劃在乳房相切照射的劑量分佈     (18點)
TO EVALUATE THE DOSE DISTRIBUTION OF CONVENTIONAL 2-DIMEN-TIONAL PLANNING METHOD FOR BREAST TANGENTIAL IRRADIATION
著者:羅慶榮(Ching-Jung Lo) ;蔡介生(Chieh-Sheng Tsai) ;葉建一(Chien-Yi Yeh) ;陳筱萱(Hsiao-Hsuan Chen) ;黃英強(David Y. C. Huang) ;陳聰汶(Chong-Huen Chen) ;梁為民(Wen-Man Leung) ;洪志宏(Ji-Hong Hong)
出版地區:台灣
出版城市:台北市
學科:醫學綜合
關鍵字:乳癌 ; 相切照射 ; 治療計劃 ; Breast cancer ; Tangential irradiation ; Treatment plan
刊名:放射治療與腫瘤學
頁碼:67-75
語言:繁體中文
摘要: 中文摘要PDF ; 英文摘要PDF

目的:比較傳統模擬定位技術(2-D)與現行電腦斷層影像三維治療技術(3-D)在放射線治療劑量上的差異,並確認傳統模擬定位技術在乳房相切照射技術的可行性。 材料與方法:自1998 年11 月至1998 年12 月,十位在本科接受乳房相切照射治療的初期乳癌病患收入到此篇的研究體材內。病患使用發泡劑製做固定姿勢,進行傳統乳房相切照射的模擬攝影操作程序,取得傳統2-D 治療技術的參數。之後,病患進行電腦斷層掃描,以擷取影像傳輸至3-D 影像輔助治療計劃系統。比較3-D 影像輔助治療計劃其最佳的劑量分佈與2-D 治療參數(中心點、照野、旋轉臂角度及準直儀角度等)輸入至3-D 影像輔助治療計劃系統之DVH ,並計算所得的照射體積(如PTV 、正常組織、肺部與心臟)。 結果:此兩種技術計算其PTV 的覆蓋比率為0.95 ± 0.02 。就正常組織, 2-D 在50 %的劑量曲線內有較多的胸壁軟組織被含括,但兩者技術並沒有產生明顯差別(平均體積分別為2-D 703 ml± 205 ml 和3-D 539 ml ± 197 ml , t test p = 0.146)。對同側的肺部而言,有相同的肺部照射體積百分比(2-D 為7.5% ± 3.0% 與3-D 為7.6% ± 4.8%)。另外左側乳癌病患,心臟接受照射體積亦沒有不同(2-D 為5.8 ml ± 4.2 ml , 3-D 為5.4 ml ± 3.9 ml)。 結論:我們的資料顯示,兩種技術無論在PTV 、正常組織、肺部與心臟其分析資料無差別。在沒有CT 模擬攝影機的時後,以傳統的2-D 模擬攝影來執行乳房相切照射技術來執行,亦是一種可行的選擇。
Purpose : To compare the conventional 2-dimensional (2-D) simulation technique with CT- based 3-D planning method, and verify the feasibility of 2-D method for breast tangential irradiation. Materials and Methods : From November to December1998, ten successive patients with early-staged breast cancer were enrolled for this study. After immobilization with alpfa-cradle, patient underwent a conventional simulation-method to get the parameters for 2-D treatment plan. Patient also had a chest CT scan and these images were stored for subsequent 3-D treatment plan. These two treatment planning methods were retrospectively compared with their dose-volume histogram (DVH) of the irradiated targets (PTV, normal tissue, lung and heart). Results : The PTV covering ratio (2-D vs. 3-D) of these two techniques is 0.95 ± 0.02. For the normal tissue, two-dimensional technique has more chest wall soft tissue included within 50% isodose curve, but there is no significant difference (mean volume 703 ml ± 205 ml for 2-D vs. 539 ml ± 197 ml for 3- D, t test p = 0.146) . For the ipsilateral lung tissue, both methods have equivalent irradiated percentage lung volume (7.5% ± 3.0% for 2-D vs. 7.6% ± 4.8% for 3-D). For left-sided breast cancer, the average irradiated heart volumes are 5.4 ml ± 4.2 ml (2-D) versus 5.8 ml ± 3.9 ml (3-D). Conclusions : Our analysis shows that both planning methods have equivalent irradiated dose-volume histograms. For circumstances where CT scan simulator is not available, conventional 2-D planning method is an acceptable alternative.


    

本卷期目次
放射治療與腫瘤學
台灣地區水吸收劑量之標準建立與量測比對/ 李振弘林炯榆蘇水華鄭秀成葉健一鄧菊梅黃文松
瓦里安碳纖維治療床之衰減及射束與治療床的幾何關係/ 鄭因絢林坤生何志偉何迦聖郭力誠陳筱萱陳文政陳妙芬游浚彥
評估傳統二維治療計劃在乳房相切照射的劑量分佈/ 羅慶榮蔡介生葉建一陳筱萱黃英強陳聰汶梁為民洪志宏
Preprocessing Treatment Targeting for Intensity Modulated Radiotherapy Based on Wavelet Segmentation/ Tsair-Fwu LeeStephen Wan LeungPei-Ju ChaoChih-Jou HuangEng-Yen HuangChao-Ji Chou
Lumbar Spine Chordoma with Bone Metastasis: A Case Report and Literature Review/ Wen-Yen ChiouShi-Long LianSung-Wei LeeHung-Hong ShyrAij-Lei KwanHsiang-Ju Lin
放射線強度調控治療上呼吸運動修正的可行性研究/ 莊克士陳合興郭祥吉林盈釧劉文山詹建勝陳永忠
The Role of Radiotherapy in the Treatment of Non-Melanomatous Cancers of the Skin/ Weng-Yoon ShumMu-Tai LiuChih-Chung SuTung-Hao ChangChu-Ping PiWen-Shan LiuChao-Yuan HuangAi-Yih Wang
The Treatment Result of Adjuvant Chemo-Radiotherapy for Post-Operative Colorectal Cancer/ Chi-Fu HungWei-Tzung ChenChien-Ru LiuLi-Sun ShihJyh-Der Leu
THE ROLE OF RADIOTHERAPY IN THE TREATMENT OF NON-MELANOMATOUS CANCERS OF THE SKIN/ Weng-Yoon ShumMu-Tai LiuChih-Chung SuTung-Hao ChangChu-Ping PiWen-Shan LiuChao-Yuan HuangAi-Yih Wang
THE TREATMENT RESULT OF ADJUVANT CHEMO-RADIOTHERAPY FOR POST-OPERATIVE COLORECTAL CANCER/ Chi-Fu HungWei-Tzung ChenChien-Ru LiuLi-Sun ShihJyh-Der Leu
台灣地區水吸收劑量之標準建立與量測比對/ 李振弘林炯榆蘇水華鄭秀成葉健一鄧菊梅黃文松
PREPROCESSING TREATMENT TARGETING FOR INTENSITY MODULATED RADIOTHERAPY BASED ON WAVELET SEGMENTATION/ Tsair-Fwu LeeStephen Wan LeungPei-Ju ChaoChih-Jou HuangEng-Yen HuangChao-Ji Chou
瓦里安碳纖維治療床之衰減及射束與治療床的幾何關係/ 鄭因絢林坤生何志偉何迦聖郭力誠陳筱萱陳文政陳妙芬游浚彥
放射線強度調控治療上呼吸運動修正的可行性研究/ 莊克士陳合興郭祥吉林盈釧劉文山詹建勝陳永忠
評估傳統二維治療計劃在乳房相切照射的劑量分佈/ 羅慶榮蔡介生葉建一陳筱萱黃英強陳聰汶梁為民洪志宏
LUMBAR SPINE CHORDOMA WITH BONE METASTASIS: A CASE REPORT AND LITERATURE REVIEW/ Wen-Yen ChiouShi-Long LianSung-Wei LeeHung-Hong ShyrAij-Lei KwanHsiang-Ju Lin
 
   
 
   

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