| 研究生: |
葉佳文 Yeh, Chia-Wen |
|---|---|
| 論文名稱: |
以有限元素分析探討局部水療之溫度分佈 Temperature Distribution during Local Hydrotherapy with Finite Element Analysis |
| 指導教授: |
徐阿田
Hsu, Ar-Tyan 張志涵 Chang, Chih-Han |
| 學位類別: |
碩士 Master |
| 系所名稱: |
工學院 - 醫學工程研究所 Institute of Biomedical Engineering |
| 論文出版年: | 2003 |
| 畢業學年度: | 91 |
| 語文別: | 中文 |
| 論文頁數: | 58 |
| 中文關鍵詞: | 熱療 、水療 、有限元素分析 |
| 外文關鍵詞: | finite element analysis, hydrotherapy, hyperthermia |
| 相關次數: | 點閱:109 下載:3 |
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熱療(Hyperthermia)是物理治療常用的治療方式之一,藉由局部組織溫度的提升,使血管擴張、提高疼痛閾值、改變組織材料性質及增加組織代謝率等以達到治療效果。熱療時對組織所造成之溫度改變情形是物理治療人員欲了解的。至目前為止,熱療時溫度分佈情形之研究皆以thermal couple直接量測單點的溫度變化為主。另一種研究方式-有限元素分析,是以數值模擬之方式模擬溫度分佈,優點是能以整體的角度觀察研究溫度分佈情形並可進行參數分析。
本研究以美國國家醫學圖書館發展的The Visible Human Project之人體冷凍切片影像資料建立大腿部位之三維有限元素模型,模擬大腿在接受水療熱療後,組織溫度變化及分佈情形。同時並進行參數分析,探討影響溫度分佈之主要因素。研究結果顯示水療溫度變化在組織淺層數公分深,與熱療之表淺熱(superficial heat modalities)常識相符。水溫及血流變化是影響淺層溫度變化之主要因素,另外脂肪厚度及肢體大小均會對溫度分佈有影響,但影響量不大。依目前模擬結果顯示對肌肉組織大約只有0.5℃以內的差異。本研究之結果可以提供臨床物理治療人員及醫師於淺層熱療之處方參考。
Hyperthermia is one of the therapeutic treatments in physical therapy. The effects of hyperthermia are primarily on vasodilatation, pain control, alternation of tissue material properties, and increasing metabolic rate. Temperature distribution during hyperthermia is essential for physical therapist. Most of researches for temperature distribution during hyperthermia were to measure the temperature by thermo couple at discrete locations. On the other hand, finite element simulation could provide entire temperature distribution of the tissue and is suitable for parametric analysis.
The purpose of this study was to evaluate temperature distribution at human thigh during hydrotherapy using finite element analysis. The model of thigh was built based on the image data from The Visible Human Project developed by National Library of Medicine, USA. Parametric analysis was also included in this study to examine various factors, which influence the temperature distribution during hydrotherapy. The results of this study demonstrated that hydrotherapy is indeed a superficial heat treatment, that is, the temperature rising only occurred at superficial tissue. The main factors, influenced the temperature distribution, are temperature of water and blood flow effects. In addition, fat thickness and limb size would affect the temperature distribution. However, their effects are minimal. For muscle, the temperature variations were less than 0.5℃ under current simulated different tissue structures. The results of this study can provide guideline for physical therapist to prescript superficial heat modalities.
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