(3.80.6.131) 您好!臺灣時間:2021/05/14 02:37
字體大小: 字級放大   字級縮小   預設字形  
回查詢結果

詳目顯示:::

我願授權國圖
: 
twitterline
研究生:紀瑞峻
研究生(外文):Chi ,Ruei Jiun
論文名稱:侵入式微波天線陣列熱療系統之建立與發展
論文名稱(外文):The Establishment and Development of Interstitial Microwave Antenna Array Hyperthermia System
指導教授:蘇振隆蘇振隆引用關係
指導教授(外文):Su,Jenn-Lung
學位類別:碩士
校院名稱:中原大學
系所名稱:醫學工程學系
學門:工程學門
學類:綜合工程學類
論文種類:學術論文
論文出版年:1995
畢業學年度:83
語文別:中文
論文頁數:122
中文關鍵詞:熱治療假構物侵入式微波天線陣列熱療
外文關鍵詞:HyperthermiaPhantomIMAAH
相關次數:
  • 被引用被引用:0
  • 點閱點閱:171
  • 評分評分:系統版面圖檔系統版面圖檔系統版面圖檔系統版面圖檔系統版面圖檔
  • 下載下載:0
  • 收藏至我的研究室書目清單書目收藏:0
在現今各種癌症治療的技術中,熱治療對於癌症的良好治療效果已被多項
研究所證實,對於人體深部的腫瘤而言,侵入式微波天線熱療為一項極佳
的熱治療技術。本研究嘗試建立一套具備安全性高與穩定性高以及加熱效
果好的侵入式微波天線陣列熱療系統,以期能夠提供給醫師們在臨床上做
為深部腫瘤治療時所使用。為了達到此一目的,本研究乃分為兩個階段來
進行,其中在第一階段中乃是初步建立一套人工調整方式的侵入式微波天
線熱療系統,並利用此一系統進行動物實驗,以測試系統的穩定性與加熱
效果;在第二階段的研究中,則是建立一套具有溫度與能量自動監控功能
的侵入式微波天線陣列熱療系統,同時並針對發展完成的熱療系統進行假
體實驗測試,假體實驗中並同時探討血流因素對於本系統進行加熱時所產
生的溫度分佈之影響。本系統採用六根新型的侵入式微波天線(Sleeved
Slot Coaxial Antenna)所組成的正六邊形天線陣列來進行加熱;在系統
溫度監控功能的設計上,則是利用經由光纖溫度量測系統所測得的溫度資
料進行回授控制,而改變天線陣列的微波能量輸出。實驗結果顯示,在能
量與溫度自動監控系統的作用下,將使得天線陣列所產生的溫度分佈均勻
而且能夠穩定的維持在43∼45℃的溫度範圍之內;在水流對於加熱時溫度
分佈的影響方面,當開始加熱的階段中,水流對於溫度上升速度之影響將
隨著水流流速的增加而增大,但是當水流流速到達100 ml/min以上時,則
水流帶走能量的速率將趨於常數變化,而不再有明顯的增加現象。此外,
水流對於溫度分佈之影響在加熱到達穩態時的影響並不明顯,證實本熱療
系統對於深部區域極佳的加熱效果。
Numerous studies have indicated that hyperthermia is a good
modality for cancer therapy. Interstitial microwave antennas
are especially suitable to induce hyperthermia for deep-seated
tumors. In this study, an interstitial microwave antenna array
hyperthermia (IMAAH) system which is safe, stable and efficient
to heat the deep-seated tumor was developed. In order to
achieve this goal, this study was divided into two stages. In
the first stage, a manual control IMAAH system was established,
and then animal experiments were conducted to test the
efficiency of this system. However, the primary problem of this
system is that it would consume much of time in temperature and
power control by manual operation. In the next stage, an IMAAH
system that have the abilities of automatic temperature and
power control was developed. Experiments in phantom with and
without blood flow effect were conducted to test the system
performance. Six 2450-MHz antennas which were implanted on the
corners of a hexagon with intercatheter spacing 15 mm were used
in this system. The temperature data from four fiberoptic
thermometries were fed to the personal computer which can
record and analyze the data ,also can control the output power
of microwave source. By using the automatic temperature and
power control in IMAAH system, the temperature distribution in
tissues can be maintained uniformly in the range of 43 to 45℃.
For the flow effect on temperature distribution, the results
showed that the faster flow rate would take the more energy
away in the transient period. However, the rate of energy loss
caused by flowing water became constant when the flow rate was
faster than 100 ml/min. Moreover, the influence of flow
diminished until the steady state due to the automatic power
and temperature control. The superior ability of this IMAAH
system in maintain uniform temperature distribution around the
heating area was clearly demonstrated.
QRCODE
 
 
 
 
 
                                                                                                                                                                                                                                                                                                                                                                                                               
第一頁 上一頁 下一頁 最後一頁 top
系統版面圖檔 系統版面圖檔