对69名正常人及50例风湿性心脏病病人进行了左房深径X线侧位胸片与超声心动图测量的比较研究。结果表明,作者提出的左房深径X线测量方法适用于各种心型、性别及15岁以上的各年龄组,方法准确可靠,简便快速,易掌握。以35mm为左房深径正常与增大的交界值时,该法临床应用符合率为95.8%,灵敏度为92%,特异度为98.6%。 A comparative study of chest X-ray and echocardiography of left atrium deep X-ray was performed on 69 normal subjects and 50 rheumatic heart disease patients. The results show that the proposed method for left atrium deep-root X-ray measurement is suitable for all age groups of more than 15 years old. The method is accurate, reliable, simple, quick and easy to grasp. To 35mm for the left atrial diameter at the junction of the normal and increased, the clinical application of the method was 95.8% compliance, sensitivity was 92%, specificity was 98.6%.