Fig 7. Graphs showing the results of subjective and objective analyses in the stent group.

(A) Plotting of subjective symptom scores before and after balloon dilatation and after stent insertion. In all patients, subjective symptom scores were not improved after balloon dilatation. However, it was significantly improved after stent insertion. (B) Plotting of the pyloric canal-to-height of vertebral body ratio before and after balloon dilatation and after stent insertion. In all patients, the ratio of the pyloric canal-to-height of the vertebral body increased after stent insertion compared to both before and after balloon dilatation. (C) Plotting of the grade for residual food stagnation before and after balloon dilatation and after stent insertion. In all patients, the grade of residual food stagnation improved after stent insertion compared to both before and after balloon dilatation.