Table 3.

Relationship between the side of the second stent and the angle change

	α angle change	β1 angle change	β2 angle change
	P	P	P
Radiologist 1	0.293	0.792	0.095
Radiologist 2	0.312	0.759	0.065
Radiologist 3	0.313	0.792	0.095

Second stent was located on the right side in six patients and on the left side in 13 patients.