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題名 | 何杰金氏病的放射治療方法: 探討與分析=Clinical Dosimetry for Hodgkin's Disease Radiotherapy |
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作者 | 劉幕臺; 林招膨; 林松彥; 林昇宏; | 書刊名 | 放射治療與腫瘤學 |
卷期 | 5:3 1998.09[民87.09] |
頁次 | 頁207-216 |
分類號 | 415.6 |
關鍵詞 | 何杰金氏病; Clarkson方法; Hodgkin's disease; Clarkson's method; |
語文 | 中文(Chinese) |
中文摘要 | 目的:詳細討論何杰金氏病放射治療方法與劑量計算過程,並討論其臨床上實用性。 材料與方法:針對本院一18歲何杰金氏病男性病人,討論斗蓬照野、倒Y型照野Clarkson 劑量計算方法,並利用治療計畫做追加照射(boost)劑量推定,及估算兩照野間距若干。 討論:劑量計算之誤差主要來自體表不平整性,誤差約6%。而斗蓬照野中之肺與其他組織之 不均勻性,由於肺部經鉛檔塊遮檔,對於照野範圍內之劑量計算不造成任何影響。體表肋骨 之影響,誤差在1%以內,可以忽略。 結論:Clarkson方法為計算不規則照野劑量之可行方法,唯其費時費力,故電腦化或製作換 算樣版以提高臨床實用性是必須的。 |
英文摘要 | Purpose: Discussing the dose evaluation process for Hodgkin's disease radiotherapy and the clinical practice. Materials and Methods: Using the Clarkson's 's method to evaluate mantle and inverse Y fields dosimetry for a eighteen-year-old Hodgkin's disease patient in our hospital, and estimate the boost dose from treatment planning, otherwise, calculate the gap between two adjacent fields. Discussion: The main error of dose evaluation came from the non-flatteness of body, which up to 6%. Since lung was blocked, the inhomogeneity between lung and adjacent tissue in the mantle field caused on effect to dose evaluation. The rib's effect which within 1% is negligible. Conclusion: Clarkson's method is a useful way to evaluate the dose of irregular fields, but it is time wasting and laborious. Computerization or equivalent squares template may be applied to increase clinical practice. |
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