Objective: To evaluate the cochlear implant operation by the use of X-ray or CR.
Method: There are 15 ears 15 cases which were completed the cochlear implant operation, after operation the implant electrode array was shown by the use of X-ray or CR.
Result: The shape and station of those were normal, average insered depth was 23.05 mm, come up to provide standard.
Conclusion: It was an economic, convenient, objective and worthy method to evaluate the cochlear implant.