一般X线投照方法所得肩胛骨、胸骨及肋骨的影像常不清晰,而临床诊断中常需要观察这些骨骼的细微结构。为提高检出率,我们对此作了如下改进。肩胛骨与上部肋骨投照时患者取仰卧位,被照侧的上臂沿躯干伸直,并外展45°,手心向上,使肩胛骨放于片子中心。X线中心线垂直胶片中心,焦点 The scapular, sternum and rib images obtained by the general X-ray projection method are often not clear, and the microscopic structure of these bones often needs to be observed in clinical diagnosis. To improve the detection rate, we made the following improvements. Scapula and the upper ribs when the patient supine supine position, according to the upper arm along the trunk straight, and outreach 45 °, palms up, so that the shoulder blade in the center of the film. X-ray center vertical film center, focus