[The application of the magnetic resonance hydrography of inner ear in diagnosing large vestibular aqueduct syndrome].
OBJECTIVE
To study the effect of the magnetic resonance hydrography of inner ear technique in diagnosing large vestibular aqueduct syndrome.


METHODS
3D-Fast Advanced Spin Echo MR imaging was performed on the petrosal bone of the patient who suffered from large vestibular aqueduct syndrome(LVAS). Then all the original images were transferred to an online workstation and underwent image postprocessing. The 3D images of the inner ears were obtained after 3D reconstruction.


RESULTS
The MR hydrography of inner ear of the patient displayed that there was an extradural high-signal intumescence which was like silver shape and the edge of it was smooth and neat between the sigmoid sinus of the posterior cranial fossa and the inner acoustic meatus. The maximum width of the mid position of endolymphatic sac in the temporal bone of the patient was 2.470 mm. This was much bigger than the diagnosis standard of the large vestibular aqueduct syndrome with ordinary MR imaging.


CONCLUSIONS
The MR hydrography technique is an effective method to diagnose large vestibular aqueduct syndrome. The final diagnosis in clinic could be made with the assistance of this technique.
Zhang
Di
D
Department of Otolaryngology, Second Hospital of Hebei Medical University, Shijia-zhuang 050000, China. zhangdibad@yahoo.com.cn
Lu
Hong
H
Xu
Ou
O
Lü
Zhe
Z
Zhang
Ying
Y
Wang
Wenli
W
D000328:Adult; D007758:Ear, Inner / Q000473:pathology; D006801:Humans; D007091:Image Processing, Computer-Assisted; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D008297:Male; D013577:Syndrome; D014723:Vestibular Aqueduct / Q000473:pathology*; D015837:Vestibular Diseases / Q000175:diagnosis* / Q000473:pathology