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目的 对喉咽、食管入口进行解剖学观测 ,为介入放射学置入食管内支架治疗高位食管疾病提供解剖学依据。方法 180名健康体检志愿者在胃肠造影机下口服钡剂进行直立仰头位、低头位咽腔和食管造影 ;将X线片上颈椎体平分三等份、椎间盘一份 ,记录梨状隐窝下极对应的颈椎椎体位置 ,使用两脚规和游标卡尺测量梨状隐窝下极与C5下缘基线的距离 ;测量 6 1具尸体标本梨状隐窝下极与环状软骨板下缘之间的距离。结果 ①梨状隐窝下极在仰头位和低头位时活动度平均为 2 .0cm(相当于 5个 1 3颈椎高度 ) ;②梨状隐窝下极与环状软骨板下缘之间距离平均 2 .0cm。结论 以梨状隐窝下极定位法放置高位食管内支架比颈椎定位法更加准确、合理
Objective To observe the anatomy of laryngopharyngeal and esophageal entrances and provide anatomical basis for the intervention of esophageal stent in the treatment of upper esophageal diseases by interventional radiology. Methods A total of 180 healthy volunteers underwent oral contraceptive operation under the gastrointestinal radiography machine. The lower cervical pharyngeal cavity and esophageal angiography were performed. The upper cervical vertebral body was divided into three equal parts and one intervertebral disc. The lower pole corresponding to the position of the cervical vertebra, the use of two-legged calipers and vernier calipers measured under the pole and C5 baseline lower edge of the baseline; measured 6 1 cadaver subocortis and the lower edge of the annular plate between the distance. Results (1) The average elevation of the inferior pole of the pear-shaped crypt was 2.0 cm (equivalent to 5 of 13 cervical vertebrae) when the lower pole was in the upward and downward position. The average distance between the lower pole of piriform crypt and the lower edge of the annular cartilage 2 .0cm. Conclusion It is more accurate and reasonable to place the high esophageal stent under the piriform crypt placement method