[Retracted] Application of 64-Slice Spiral CT Imaging Technology Based on Smart Medical Augmented Reality in the Diagnosis of Foreign Bodies in the Respiratory Tract in Children

Table 7

The relationship between the surface and edge of foreign body in the respiratory tract and the formation of granulation.

Group	Have granulation	No granulation	Total
Smooth surface	1	5	6
Rough surface	3	10	13
Sharp edges	1	2	3