CAJ | 학술논문

目的：利用MIMIC Datebase（ mimicdb）数据分析有创收缩压和脉搏传导时间（ pulse transit time， PTT）的关系。制作AVR信号采集系统，并在PC下采集心电和脉搏的实时信号，分析无创收缩压和PTT的关系。方法利用Matlab软件分析MIMIC数据库内5个个体的数据，得出PTT和有创收缩压的相关系数。利用AVR单片机采集用6名正常血压的男性（年龄27～31周岁）的心电和脉搏信号，用蓝牙发送至计算机。通过两个月对比试验，比较PTT和收缩压之间的关系是否发生很大的变化。结果PTT同有创和无创收缩压都有较好的线性相关性，波谷作为PTT特征点和收缩压有更好的线性关系。结论 AVR数据采集系统小巧、便携，可应用于家用监护。
목적：이용MIMIC Datebase（ mimicdb）수거분석유창수축압화맥박전도시간（ pulse transit time， PTT）적관계。제작AVR신호채집계통，병재PC하채집심전화맥박적실시신호，분석무창수축압화PTT적관계。방법이용Matlab연건분석MIMIC수거고내5개개체적수거，득출PTT화유창수축압적상관계수。이용AVR단편궤채집용6명정상혈압적남성（년령27～31주세）적심전화맥박신호，용람아발송지계산궤。통과량개월대비시험，비교PTT화수축압지간적관계시부발생흔대적변화。결과PTT동유창화무창수축압도유교호적선성상관성，파곡작위PTT특정점화수축압유경호적선성관계。결론 AVR수거채집계통소교、편휴，가응용우가용감호。
Objective The relationship between pulse transit time ( PTT) and invasive systolic blood pressure is analyzed with the data in MIMIC Database? A signal acquisition system which can obtain real time ECG and pulse signal is developed with AVR microcontroller and PC to analyze the relationship between the noninvasive systolic pressure and PTT? Methods Signals of 5 persons in the MIMIC Database are handled with Matlab software? The correlation coefficient between PTT and invasive systolic pressure is obtained? Six recruited normotensive male subjects ( aged 27 to 31 years) are tested with the system? Data of ECG signals and PPG signals are sent to PC via blue tooth? Then a two?month repeatability test is conducted on 4 subjects to test if there is a big change in the same subject? Results PPT has good linear relation with both invasive and noninvasive systolic pressure? Better linear relation can be achieved when the trough of the pulse wave is used as the characteristic point? Conclusions AVR data acquisition system is compact, portable, and can be applied in home care.