CAJ | 학술논문

目的 ST-T段变化是心电图检测心肌缺血主要的临床表现,代表了心室复极的电位变化;但其特征点定位存在很大的不准确性,为了克服这一难点,本研究从心电图QRS波群出发进行心肌缺血分析.方法从心电图QRS波群(代表了心室的除极过程)出发,综合提取QRS波群的各个时域参数,然后进行心肌缺血与非心肌缺血条件下的统计检验.结果经MIT-BIH数据库中正常心电数据和公共数据库LTST中心肌缺血数据的统计分析,发现有5个参数其差异有统计学意义:QRS波群上升斜率、下降斜率、瞬时心率,三角形QRS的R角、Q角.结论在QRS波群推出的各个参数中,有5个参数其差异具有统计学意义.本研究方法为心肌缺血的检测提供另一重要的依据.
목적 ST-T단변화시심전도검측심기결혈주요적림상표현,대표료심실복겁적전위변화;단기특정점정위존재흔대적불준학성,위료극복저일난점,본연구종심전도QRS파군출발진행심기결혈분석.방법 종심전도QRS파군(대표료심실적제겁과정)출발,종합제취QRS파군적각개시역삼수,연후진행심기결혈여비심기결혈조건하적통계검험.결과 경MIT-BIH수거고중정상심전수거화공공수거고LTST중심기결혈수거적통계분석,발현유5개삼수기차이유통계학의의:QRS파군상승사솔、하강사솔、순시심솔,삼각형QRS적R각、Q각.결론 재QRS파군추출적각개삼수중,유5개삼수기차이구유통계학의의.본연구방법위심기결혈적검측제공령일중요적의거.
Objective ST-T complex change, which represents the ventricle repolarization phase, is the main clinical indicator in detecting myocardial ischemia (MI) based on electrocardiogram (ECG) signals.However, its feature point location is not accurate due to interferences. In this paper, a new approach about myocardial ischemia analysis was proposed based on QRS complex. Methods QRS complex, representing the ventricle depolarization process, was used to analyze myocardial ischemia, and some parameters were extracted synthetically in time domain. Then they were used for statistical analysis of myocardial ischemia states and non-myocardial ischemia states. Results Five parameters had significant differences after verification of Non-MI signals in MIT-BIH database and MI signals in long-term ST database (LTST) and they were: QRS upward and downward slopes, transient heart rate, R angle and Q angle in a triangle QRS. Conclusion Five parameters extracted from QRS complex had significant differences. The proposed method provides an important basis for myocardial ischemia detection.