Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Radiographies of a coil catheter (arrowheads) being advanced over a guide wire (arrows) into the gastroduodenal phantom with stricture in the four groups.
A. Group I, without a balloon sheath.
B. Group II, through the deflated balloon sheath.
C. Group III, through the inflated balloon sheath with the inflated balloon located in the gastric fundus.
D. Group IV, through the inflated balloon sheath with the inflated balloon located in the gastric body.
