心胸接触面—主膈高度比率——侧位胸片估价右心室增大的一种方法

The Heart Contact with the Sternum-Aorta to Diaphragm Height Ratio A Method for Evaluating Right Ventricular Enlargement on Lateral Chest Radiographs

作者观测了20个正常成人心脏、5具尸体、100例正常成人及53例二尖瓣病变的左侧位胸片,提出一种估价右心室及其增大程度的方法,即心胸接触面—主膈高度比率。比率在0.50以下者为右室正常;0.51～0.60为右室轻度增大;0.61～0.70为右室中度增大;0.71以上者为右室重度增大。简要地讨论了计量比率的方法及影响比率的因素。

The author observed and measured normal hearts in 20 adults,5 adult cadavers andthe normal adult heart on 100 left lateral chest radiographs and those of 53 patients affected by mitralvalve diseases.A method for evaluating the right ventricle and the degree of right ventricularenlargement is presented, i,e,The heart contact with the sternum-aorta to diaphragm height ratio,forright ventricle:ratio of less than 0.50 is considered normal;0.51～0.60 as mild enlargement;0.61～0.70 considered as middle enlargement and more than 0.71 is considered as severe enlargement.A methodfor calculating and measuring this ratio and factors which may influence such ratio is briefly described.