教師資料查詢 | 類別: 期刊論文 | 教師: 黃煌文 Huang-Wen Huang (瀏覽個人網頁)

標題:Effective heating for tumors with thermally significant blood vessels during hyperthermia treatment
學年101
學期1
出版(發表)日期2013/01/10
作品名稱Effective heating for tumors with thermally significant blood vessels during hyperthermia treatment
作品名稱(其他語言)
著者Huang, Huang-Wen; Liauh, Chihng-Tsung; Horng, Tzyy-Leng; Shih, Tzu-Ching; Chiang, Chi-Feng; Lin, Win-Li
單位
出版者
著錄名稱、卷期、頁數Applied thermal Engineering 50 (1), pp.837-847
摘要Significant cooling effect by blood vessels, particularly in treated tumor region, during hyperthermia treatment has been recognized by researchers. The present study investigated a heating strategy, using a preheating zone and adaptive optimization, to effectively reduce the cooling effect as thermally significant blood vessels flowed through treated region during hyperthermia treatment. The preheating zone is located in a vessel's entrance region adjacent to treated tumor and the heating strategy attempted to elevate blood temperature before blood flowing into the treated region. We numerically calculated blood and tissue temperatures using 3-D models and the goal of treatment was to reach a uniform therapeutic temperature in the tumor region using the proposed heating strategy. Results showed first, for large blood vessels, the heating strategy effectively elevated blood temperature at the entrance of treated tumor and reduced total tumor power deposition. Consequently, it helped to reach the ideal treated temperature on tumor more effectively, and avoided extreme power deposition due to the cooling effect of blood vessels entering the treated region. For small blood vessels, the preheating zone could further improve the treatment result. Secondly, heating flowing blood with adaptive optimization results in a unique phenomenon along blood flow paths. That is a strong convective nature of blood flow, which creates high thermal gradients in the treated region. Thus, it plays a different and significant role in adaptive optimization process as compared to thermal diffusion of solid tissues.
關鍵字Thermally significant blood vessels;Cooling effect;Hyperthermia;Adaptive optimization;Preheating zone;Absorbed power deposition
語言英文
ISSN1359-4311
期刊性質國外
收錄於SCI;
產學合作
通訊作者Lin, Win-Li
審稿制度
國別英國
公開徵稿
出版型式,紙本
相關連結
Google+ 推薦功能,讓全世界都能看到您的推薦!