60
Participants
Start Date
October 31, 2016
Primary Completion Date
January 31, 2017
Study Completion Date
March 31, 2017
laryngoscope and chest CT image
First,the operator calculate the distance between the carina and the glottis by CT image and make s marker on the double lumen endotracheal tube. Then the operator when inserted into the double lumen tube under the visualof laryngoscope until see marker just at the glottis
traditional method by experience
Operator inserted the double lumen tube by experience
中国, Qinhuangdao
The First Hospital of Qinhuangdao
OTHER_GOV