CC BY-NC-ND 4.0 · Laryngorhinootologie 2019; 98(S 02): S152
DOI: 10.1055/s-0039-1686504
Abstracts
Otology

Eustachian tube stents – direct and indirect findings in CBCT

R Schuon
1   HNO/MHH, Hannover
,
T Lenarz
1   HNO/MHH, Hannover
,
G Paasche
1   HNO/MHH, Hannover
,
T Wilfling
1   HNO/MHH, Hannover
,
N Grabow
2   Universität Rostock/IBMT, Rostock
,
K Schürmann
2   Universität Rostock/IBMT, Rostock
,
T Stein
3   bess, Berlin
› Author Affiliations
RESPONSE Zwanzig20, BMBF
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    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


    #
    Dr.med. Robert Schuon
    HNO/MHH,
    Carl-Neuberg-Straße 1, 30625
    Hannover

    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/).

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