以脈波諧波特徵和模糊平均分類法為基礎之心肌缺氧診斷法則

Myocardial Ischemia Diagnosis Based on Harmonics Features of Pulse Wave and Fuzzy Clusteringi

林志忠(lin chih chung)

指導教授 ： 張剛鳴

亞洲大學/資訊學院/電腦與通訊學系碩士班/碩士(2007年)

摘要

台灣近幾年來隨著經濟文化與生活水準的提高改變了人們原有的
飲食習慣，多為重口味高鹽份高油脂，心臟病早已成為十大死亡原因的
前幾名，而心肌缺氧是心臟病典型症狀，所以我們可以利用心肌缺氧來
診斷病人是否有心臟病。
因很多心肌缺氧的病人，休息狀態的心電圖都是正常的，這是因
為此時供應心臟的氧氣暫時足夠心臟工作所需，所以，心電圖不會出現
缺氧的情形，但在不同程度的運動負荷時，心電圖即會出現氧氣不足的
情形。所以傳統的診斷方法需使用到運動心電圖，而心電圖紀錄有以廿
四小時或甚至四十八小時之長時間紀錄，所以若能找到一種更為方便的
非侵入式診斷方法，將成為病患的一大福音。
本研究的目的就是要利用脈波訊號，萃取出脈波的諧波頻譜特徵
及形成因子，透過模糊平均分類法，建立起一分類演算法來判斷心肌缺
氧，結果諧波頻譜特徵的準確度為百分之六十一，形成因子的準確度為
百分之十八，諧波頻譜和形成因子的組合分類線準確度為百分之五十，
相信此研究將對於未來心臟病的診斷有所幫助。/

關鍵字

模糊平均分類法、脈波、心肌缺氧、形成因子

並列摘要

In recent years, people have changed their eating habit with economic
culture and improvement of the living standard in Taiwan. Because having
too much salt and fat, the heart disease has already become one of the top
ten major death reasons. And myocardial ischemia diagnosis is typical
symptom of heart disease. According to myocardial ischemia diagnosis,
we can diagnose whether the patients have the heart disease or not.
Many myocardial ischemia patients whose electrocardiogram is normal
when they have a rest, the reason is supplying oxygen to heart is enough for
heart working. Therefore, the electrocardiogram will not show the
situation of myocardial ischemia. But doing difference exercise that they
can not load, the electrocardiogram will show the situation of myocardial
ischemia. So the traditional diagnosis needs to use the exercise tolerance
testing. And the electrocardiograms have a record for a long time of 24 or 48
hours. If we can find a method which is more convenient than traditional
methods, it will be good news for patients.
This study’s purpose is to use pulse wave and find out pulse wave’s
harmonics features and form factor. It can be established one classification
perform algorithm to diagnose myocardial ischemia diagnosis by FCM.
The result of harmonics features is 61%, and form factor is 18%. Harmonics
and form factor of categorised line are 50%. According to this data, this
study will be helpful about heart disease in the future.

並列關鍵字

FCM、pulse wave、Myocardial Ischemia diagnosis、form factor

參考文獻

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