Hostname: page-component-78c5997874-8bhkd Total loading time: 0 Render date: 2024-11-13T01:54:15.610Z Has data issue: false hasContentIssue false

Computed tomography in choanal atresia

Published online by Cambridge University Press:  29 June 2007

Donald B. Kearns
Affiliation:
Department of Otolaryngology, Hospital for Sick Children, London.
Michael Wickstead
Affiliation:
Department of Otolaryngology, Hospital for Sick Children, London.
Dennis I. Choa
Affiliation:
Department of Otolaryngology, Hospital for Sick Children, London.
Rosalind N. Leitch
Affiliation:
Department of Otolaryngology, Hospital for Sick Children, London.
Martin Bailey*
Affiliation:
Department of Otolaryngology, Hospital for Sick Children, London.
J. N. J. Evans
Affiliation:
Department of Otolaryngology, Hospital for Sick Children, London.
*
C. Martin Bailey, B.Sc., F.R.C.S., Department of Otolaryngology, Hospital for Sick Children, Great Ormond Street, London WCIN 3JH.

Abstract

Computed tomography is replacing contrast radiography as the method of choice in evaluating congenital posterior choanal atresia. Careful preparation of the patient, however, is necessary prior to the examination in order to obtain the maximum of information pre-operatively.

We present patients with inadequate preparation and illustrate their misleading scans. The proper method of examination is discussed, with a review of the literature; it is essential to remove nasal secretions by suction and instil vasoconstrictor nose drops, shortly before scanning.

Type
Main Articles
Copyright
Copyright © JLO (1984) Limited 1988

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Benjamin, B. (1985) Evaluation of choanal atresia. Annals of Otology, Rhinology and Laryngology, 94: 429432.CrossRefGoogle ScholarPubMed
Bergstrom, L. and Owens, O. (1984) Posterior choanal atresia: a syndromal disorder. Laryngoscope, 94: 12731276.CrossRefGoogle ScholarPubMed
Black, R. J., Pracy, R. and Evans, J. N. G. (1983) Congenital posterior choanal atresia. Clinical Otolaryngology, 8: 251255.CrossRefGoogle ScholarPubMed
Evans, J. N. G. and Maclachlan, R. F. (1971) Choanal atresia. Journal of Laryngology and Otology, 85: 903929.CrossRefGoogle Scholar
Harner, S. G., McDonald, T. J. and Reese, D. F. (1981) The anatomy of congenital choanal atresia. Otolaryngology, Head and Neck Surgery, 89: 79.CrossRefGoogle ScholarPubMed
Hasegawa, M., Oku, T., Tanaka, H., Watanabe, I. and Suzuki, S. (1983) Evaluation of CT in the diagnosis of congenital choanal atresia. Journal of Laryngology and Otology, 97: 10131015.CrossRefGoogle ScholarPubMed
Shirkoda, A. and Biggers, W. P. (1982) Choanal atresia. Radiology, 142: 9394.CrossRefGoogle Scholar
Slovis, T., Refro, B., Watts, F. B., Kuhns, L. R., Belenky, W. and Speylar, J. (1985) Choanal atresia: precise CT evaluation. Radiology, 155: 345348.CrossRefGoogle ScholarPubMed
Tadmor, R., David, M., Millet, D. and Leventon, G. (1984) Computed tomographic demonstration of choanal atresia. American Journal of Neuroradiology, 5: 743745.Google ScholarPubMed
Wetmore, R. F. and Mahboubi, S. (1986) Computed tomography in the evaluation of choanal atresia. International Journal of Pediatric Otorhinolaryngology, 11: 265274.CrossRefGoogle ScholarPubMed