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Computer-based analysis with three-dimensional imaging constructed from fine-slice computed tomography scan of supracricoid laryngectomy with cricohyoidoepiglottopexy: report of two cases

Published online by Cambridge University Press:  27 January 2011

Y Seino ,
M Nakayama ,
M Okamoto  and
S Hayashi
Y Seino*
Affiliation:
Department of Otorhinolaryngology-HNS, Kitasato University School of Medicine, Kanagawa, Japan
M Nakayama
Affiliation:
Department of Otorhinolaryngology-HNS, Kitasato University School of Medicine, Kanagawa, Japan
M Okamoto
Affiliation:
Department of Otorhinolaryngology-HNS, Kitasato University School of Medicine, Kanagawa, Japan
S Hayashi
Affiliation:
Department of Otorhinolaryngology-HNS, Kitasato University School of Medicine, Kanagawa, Japan
*
Address for correspondence: Dr Yutomo Seino, Department of Otorhinolaryngology-HNS, Kitasato University School of Medicine, 1-15-1 Kitasato, Sagamihara, Kanagawa 228-8555, Japan Fax: +81 42 778 8441 E-mail: [email protected]
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Abstract

Objective:

Supracricoid laryngectomy with cricohyoidoepiglottopexy is an organ-preserving surgical technique used to treat laryngeal cancer. This procedure resects the vocal folds; however, it is unclear how the sound source and airway morphology are involved in phonation through the post-operative neoglottis.

Method:

Multidetector helical computed tomography scanning was performed on two patients who had undergone supracricoid laryngectomy with cricohyoidoepiglottopexy. The cricoid and arytenoid cartilages and the airway were visualised using three-dimensional images.

Results:

The mobility of the arytenoid cartilages was well preserved in the one patient with bilateral arytenoids, and in the other patient with only one arytenoid remaining. Two types of airway configuration were observed during phonation: one patient had a single stream airway, while the other had a combination of several streams.

Conclusion:

In the patient with only one arytenoid remaining, the preserved arytenoid tended to be rotated excessively inward. Therefore, phonation may have also occurred in various airways followed by mucosal vibration, which may be a sound source.

Keywords

LarynxSurgical ProceduresThree-Dimensional ImagingComputer GeneratedLaryngeal CartilagesMorphologyComputed TomographyLaryngectomy
Type
Clinical Records
Information
The Journal of Laryngology & Otology , Volume 125 , Issue 5 , May 2011 , pp. 523 - 527
Copyright
Copyright © JLO (1984) Limited 2011

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