HRCT appearances of the bordline large vestibular aqueduct
WANG Lin-sheng
ZHANG Li-hong
CHEN Yue-qin
GUOMu-jie
WANG Yu-hong
Abstract：Objective To summarize the HRCT appearances of the bordline large vestibular aqueduct ,and to improve the knowledge of the disease and reduce missing .Methods 13 cases (15 ears) of the large vestibular aqueduct were found in 73 patients (143 ears) conformed by clinical documents and MRI ,their relevant HRCT documents were studied retro‐spectively .Standard axial and sagittal MPR images were done on Carestream10 .2 PACS .Results The morbidity is about 10 .5% (15/143) .11 are unilateral ,two cases are bilateral .The mid values of the vestibular aqueduct back limb are 0 .95~1 .30 mm (average:1 .21 mm) ,0 .97~1 .29 mm (average:1 .19 mm) .The vestibular aqueduct and endolymphatic sac were slightly dilated .The dilated vestibular aqueduct could also be identifed when it came into vestibule whether intraos‐sous or extraossous .on CISS Sequence of MRI ,one ear appeared high signal ,the others represented mixed signal in the all the enlarged endolymphatic sacs .Conclusion The bordline large vestibular aqueduct is not rare .On HRCT ,the vestibular aqueduct is slightly dilated .MRI could retrieve insufficience of CT ,and could reduce missing diagnosis .
Keywords：Large vestibular aqueduct syndromeTomographyX-ray computedMagnetic resonance imaging
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 417-421 )