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DOI: 10.1055/s-0039-1686504
Eustachian tube stents – direct and indirect findings in CBCT
Introduction:
Stenting of the Eustachian tube offers a possibility to decrease the opening resistance of the tube. Coming from balloon tuboplasty a catheter-based application has been developed. The goal of the study was to evaluate direct and indirect findings in CBCT of CoCr-, NiTi- and Polymer- based prototypes.
Methods:
In an ex-vivo study of 12 human body donors had been stented with a developed transnasal application tool bilaterally. 16 NiTi-, 3 CoCr- and 4 polymer stents had been used. CBCT scans had been done before and after an intervention. They had been evaluated with OsiriX in 3D curved MPR.
Results:
In CBCT direct and indirect signs shows the stent localization. CoCr shows strong contrast by high shadowing. NiTi shows in dependency the strut size a good differentiation radiologically. Polymer stents had no direct radiologic sign but indirect by generating an open lumen in the stented area.
Conclusions:
In analogy to stents in other medical fields, it is necessary to have a valid diagnostics for localization of the stent. The results of this study point out a valid method of localization of a stented Eustachian tube in the CBCT
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Publication History
Publication Date:
23 April 2019 (online)
© 2019. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/).
Georg Thieme Verlag KG
Stuttgart · New York