- 學位論文
利用決策樹分析術後疼痛改善狀況
Analysis the situation of post-operative pain improved by using decision tree
摘要
在現今的醫療技術大幅進步之下，子宮內膜異位症的病患很多可經由手術來治癒，讓患者可以懷孕生育。在醫療統計上，許多臨床醫師和學者證實了“超音波導引抽取注入95%酒精7分鐘以上至不抽出的治療方式有較佳的療效”，但是卻很少學者探討“不同狀況患者對酒精治療時間長短與病患疼痛改善率之間的關係?。基於不同狀況病患的療效會有所不同，術後疼痛的改善與否也會因不同的治療方式而有所不同，所以本論文以資料探勘方式探究何種治療方式對病患疼痛有較佳的改善效果。因為病患資料欄位較多，傳統僅以統計方法t檢定或變異數分析等方式，不易找到合適的切點去分割成適合資料群組來分析，因此本研究採用決策樹演算法並結合統計方式t檢定，分析治療方式對疼痛有改善與沒改善的人數，並比較各治療方式對患者的疼痛改善情況，藉以了解何種治療方式具有較佳的疼痛改善療效。除了當囊腫數量大於4時，在其他狀況下，都是酒精滯留7分鐘以上的治療方式具有顯著的疼痛改善療效。事實上，除了樣本數不足的問題外，經與專業醫師詢問後，發現在囊腫數量較多的病況下，子宮內膜異位症的患者不容易治癒，因此不論使用那一種治療方式，對患者疼痛的改善效果也是有限的。
並列摘要
Nowadays medical technology has improved rapidly; many patient of endometriosis can be treated with surgery, which enables the patient to be pregnable. Medical statistics data indicates many clinicians and researchers have confirmed that the therapy of ultrasound-guided aspiration with 95% ethanol for up to 7 minutes without extraction has the best result for ovarian endometrioma, however, only few of them have explored the relationship on the length of ethanol treatment time for patient with different conditions and the pain relief improvement rate of the patient. The effectiveness of the treatment is different in accordance to different patient condition; and the pain relief improvement rate is different in accordance to different treatments. This study implements data mining approach to explore the most effective treatment methods for patient pain relief. Due to the fact that there are too many data fields on patients, by applying the traditional statistical methods, like t-test or analysis of variance (ANOVA) methods would be difficult to find a suitable cut-off point to be divided into suitable groups for data analysis. Therefore, this study uses the decision tree algorithms to analyze the number of patient for pain-scale have improved or not in different treatment, and combined with statistical methods t-test, to compare the treatment of patients with pain improvement rate in order to understand what kind of treatment has better in pain-scale relief effect. Furthermore, compare the patient pain improvement condition on different treatments and understand what the most effective treatments in pain relief are. Ethanol for up to 7 minutes without extraction has the best result in pain relief except when the number of cyst exceed 4. In fact, after consulting with physicians the finding is that apart from lack of sample issue, endometriosis is difficult to be treated when large number of cyst is present, thus, regardless of which treatment is applied, the effectiveness is limited.