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Variability of vestibular aqueduct measurements among axial, single-oblique and double-oblique computed tomography images

Published online by Cambridge University Press:  18 September 2018

Y Quan
Affiliation:
CT room, Shanxian Central Hospital, affiliated with Jining Medical College, Heze, PR China
X J Gao
Affiliation:
Center of Laboratory Medicine, Yuhuangding Hospital, Yantai, PR China
J Liu
Affiliation:
Department of Radiology, Weihai Central Hospital, affiliated with Weifang Medical College, Weihai, PR China
R Z Gong*
Affiliation:
Shandong Medical Imaging Research Institute, Shandong University, Jinan, PR China
Q Wang
Affiliation:
CT room, Shanxian Central Hospital, affiliated with Jining Medical College, Heze, PR China
H Liang
Affiliation:
CT room, Shanxian Central Hospital, affiliated with Jining Medical College, Heze, PR China
J L Fu
Affiliation:
CT room, Shanxian Central Hospital, affiliated with Jining Medical College, Heze, PR China
Q Cheng
Affiliation:
CT room, Shanxian Central Hospital, affiliated with Jining Medical College, Heze, PR China
*
Author for correspondence: Dr Ruozhen Gong, Shandong Medical Imaging Research Institute, Shandong University, No. 324, Jingwu Road, Jinan, Shandong 250021, PR China E-mail: [email protected] Fax: +86 530 469 1777

Abstract

Objective

To investigate the morphology and dimensions of the vestibular aqueduct on axial, single-oblique and double-oblique computed tomography images.

Methods

The computed tomography temporal bone scans of 112 patients were retrospectively evaluated. Midpoint and opercular measurements were performed using axial, single-oblique and double-oblique images. Morphometric analyses were also conducted. The vestibular aqueduct sizes on axial, single-oblique and double-oblique images were compared.

Results

At the midpoint, the mean (± standard deviation) vestibular aqueduct measured 0.61 ± 0.23 mm, 0.74 ± 0.27 mm and 0.82 ± 0.38 mm on axial, single-oblique and double-oblique images, respectively; at the operculum, the vestibular aqueduct measured 0.91 ± 0.30 mm, 1.11 ± 0.45 mm and 1.66 ± 1.07 mm on the respective images. The co-efficients of variation of the vestibular aqueduct measured at the midpoint were 37.4 per cent, 36.5 per cent and 47.5 per cent on axial, single-oblique and double-oblique images, respectively; at the operculum, the measurements were 33.0 per cent, 40.5 per cent and 64.5 per cent. Regarding morphology, the vestibular aqueduct was fissured (33.5 per cent), tubular (64.3 per cent) or invisible (2.2 per cent).

Conclusion

The morphology and dimensions of the vestibular aqueduct were highly variable among axial, single-oblique and double-oblique images.

Type
Main Articles
Copyright
Copyright © JLO (1984) Limited, 2018 

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Footnotes

Dr R Gong takes responsibility for the integrity of the content of the paper

References

1Mafong, DD, Shin, EJ, Lalwani, AK. Use of laboratory evaluation and radiologic imaging in the diagnostic evaluation of children with sensorineural hearing loss. Laryngoscope 2002;112:17Google Scholar
2Boston, M, Halsted, M, Meinzen-Derr, J, Bean, J, Vijayasekaran, S, Arjmand, E et al. The large vestibular aqueduct: a new definition based on audiologic and computed tomography correlation. Otolaryngol Head Neck Surg 2007;136:972–7Google Scholar
3Madden, C, Halsted, M, Benton, C, Greinwald, J, Choo, D. Enlarged vestibular aqueduct syndrome in the pediatric population. Otol Neurotol 2003;24:625–32Google Scholar
4Zalzal, GH, Tomaski, SM, Vezina, LG, Bjornsti, P, Grundfast, KM. Enlarged vestibular aqueduct and sensorineural hearing loss in childhood. Arch Otolaryngol Head Neck Surg 1995;121:23–8Google Scholar
5Valvassori, GE, Clemis, JD. The large vestibular aqueduct syndrome. Laryngoscope 1978;88:723–8Google Scholar
6Swartz, JD. An overview of congenital developmental sensorineural hearing loss with emphasis on the vestibular aqueduct syndrome. Semin Ultrasound CT MR 2004;25:353–68Google Scholar
7Dahlen, RT, Harnsberger, HR, Gray, SD, Shelton, C, Allen, R, Parkin, JL et al. Overlapping thin-section fast spin-echo MR of the large vestibular aqueduct syndrome. AJNR Am J Neuroradiol 1997;18:6775Google Scholar
8Berrettini, S, Forli, F, Bogazzi, F, Neri, E, Salvatori, L, Casani, AP et al. Large vestibular aqueduct syndrome: audiological, radiological, clinical, and genetic features. Am J Otolaryngol 2005;26:363–71Google Scholar
9Koesling, S, Rasinski, C, Amaya, B. Imaging and clinical findings in large endolymphatic duct and sac syndrome. Eur J Radiol 2006;57:5462Google Scholar
10Arcand, P, Desrosiers, M, Dubé, J, Abela, A. The large vestibular aqueduct syndrome and sensorineural hearing loss in the pediatric population. J Otolaryngol 1991;20:247–50Google Scholar
11McClay, JE, Tandy, R, Grundfast, K, Choi, S, Vezina, G, Zalzal, G et al. Major and minor temporal bone abnormalities in children with and without congenital sensorineural hearing loss. Arch Otolaryngol Head Neck Surg 2002;128:664–71Google Scholar
12Okumura, T, Takahashi, H, Honjo, I, Takagi, A, Mitamura, K. Sensorineural hearing loss in patients with large vestibular aqueduct. Laryngoscope 1995;105:289–93Google Scholar
13Weissman, JL. Hearing loss. Radiology 1996;199:593611Google Scholar
14Minerva, B. Oral cavity and oropharynx. In: Mafee, MF, Valvassori, GE, Becker, M, eds. Imaging of the Head and Neck, 2nd edn. Stuttgart: Thieme, 2005;686Google Scholar
15Ozgen, B, Cunnane, ME, Caruso, PA, Curtin, HD. Comparison of 45 degrees oblique reformats with axial reformats in CT evaluation of the vestibular aqueduct. AJNR Am J Neuroradiol 2008;29:30–4Google Scholar
16Murray, LN, Tanaka, GJ, Cameron, DS, Gianoli, GJ. Coronal computed tomography of the normal vestibular aqueduct in children and young adults. Arch Otolaryngol Head Neck Surg 2000;126:1351–7Google Scholar
17Vijayasekaran, S, Halsted, MJ, Boston, M, Meinzen-Derr, J, Bardo, DM, Greinwald, J et al. When is the vestibular aqueduct enlarged? A statistical analysis of the normative distribution of vestibular aqueduct size. AJNR Am J Neuroradiol 2007;28:1133–8Google Scholar
18Dewan, K, Wippold, FJ 2nd, Lieu, JE. Enlarged vestibular aqueduct in pediatric sensorineural hearing loss. Otolaryngol Head Neck Surg 2009;140:552–8Google Scholar
19Pyle, GM. Embryological development and large vestibular aqueduct syndrome. Laryngoscope 2000;110:1837–42Google Scholar
20Lo, WW, Daniels, DL, Chakeres, DW, Linthicum, FH Jr, Ulmer, JL, Mark, LP et al. The endolymphatic duct and sac. AJNR Am J Neuroradiol 1997;18:881–7Google Scholar
21Legeais, M, Haguenoer, K, Cottier, JP, Sirinelli, D. Can a fixed measure serve as a pertinent diagnostic criterion for large vestibular aqueduct in children? Pediatr Radiol 2006;36:1037–42Google Scholar