[Clinical application of multiplanar reconstruction of facial canal: preliminary report].

OBJECTIVE

To study clinical criterion of the anterior positior of mastoid segment and low position of tympanic segment in atresia of external auditory canal.

METHOD: Facial canal of 80 cases was measured by multiplanar reconstruction.

RESULT: A-B less than 0.4 mm was low position of tympanic segment and E-F less than 5 mm was anterior position of mastoid facial canal in atresia of external auditory canal, there was significant difference between the two subgroups (P < 0.01).

CONCLUSION

The first time, the multiplanar reconstruction measurement criterion of facial structures in established. Multiplanar reconstruction system is useful for microsurgery doctors to precisely recognize the mark of high dangerous area in and surroundings.