Schultz E H
Dysphagia. 1989;4(3):158-61. doi: 10.1007/BF02408040.
In 200 barium examinations of the esophagus, the routine use of three overhead films made no substantive contribution to better diagnosis. These data suggest that except as requested by the fluoroscopist, overhead films may be omitted from esophageal studies.
在200例食管钡餐检查中，常规使用三张立位片对提高诊断并无实质性帮助。这些数据表明，除非荧光透视检查医师要求，食管检查中可省略立位片。
