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随着慢性支气管炎、阻塞性肺气肿、肺心病研究工作的深入开展,对于重度肺气肿和早期肺心病的右心室功能的研究显得很必要。应用测定左心室收缩时间间期(LSTI)的方法来测量左心室的作工(Performance),在心肌病、心肌梗塞、主动脉、二尖瓣疾病的研究中已经广泛应用。但由于目前还没有非侵入性方法来记录肺动脉压力曲线,所以用右心室收缩时间间期(RSTI)来测定右心室功能的方法受到限制,报导很少。
With the development of chronic bronchitis, obstructive pulmonary emphysema and pulmonary heart disease, it is necessary to study the right ventricular function in patients with severe emphysema and early pulmonary heart disease. The measurement of left ventricular performance using the method of measuring left ventricular systolic time interval (LSTI) has been widely used in the study of cardiomyopathy, myocardial infarction, aorta and mitral valve disease. However, there is no noninvasive method for recording pulmonary arterial pressure curve. Therefore, the method of determining the right ventricular function by the right ventricular systolic time interval (RSTI) has been limited and has rarely been reported.