The kinetic properties of IK were measured by cell-attached mode of patche-clamp technique.

采用膜钳细胞贴附记录模式，记录IK活力学。

Conclusions Ultrasound can help surgeon to select patch,and reveal patche's charcter and complication after the operation.

后能清晰显示补置、形态及相邻关系,有无并发症。