To evaluate the relationship between range, type, complication of retinal vein occlusion, RVO and visual damage.
目的：探讨视网膜静脉阻塞范围、分型、并发症与视力损害的关系。
Conclusions: the variation of tooth position could affect the magnitude and direction of the main apical stress, in which the symmetry of the occlusion type was also involved.
结论：牙在下颌骨上相对位置的变化会对其根尖主应力大小及方向产生一定的影响，而且其影响程度还会受到咬合对称性等因素的影响。
Objective To investigate the type of tricuspid regurgitation of perimembranous ventricular septal defect and to evaluate the occlusion efficiency using ultrasonic echocardiography.
目的通过超声心动图探讨膜周部室缺合并三尖瓣反流的机制以及室缺封堵术对于治疗合并三尖瓣反流的膜周部室缺的意义。
Objective To investigate the type of tricuspid regurgitation of perimembranous ventricular septal defect and to evaluate the occlusion efficiency using ultrasonic echocardiography.
目的通过超声心动图探讨膜周部室缺合并三尖瓣反流的机制以及室缺封堵术对于治疗合并三尖瓣反流的膜周部室缺的意义。
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