MRI-Based Estimation of Scalar Cochlear-Implant Electrode Position

Joint Authors

Todt, Ingo
Rademacher, G.
Mittmann, P.
Mutze, Sven
Grupe, Gloria
Stratmann, A.
Hoffmann, S.
Ernst, Arne

Source

BioMed Research International

Issue

Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-5, 5 p.

Publisher

Hindawi Publishing Corporation

Publication Date

2017-10-17

Country of Publication

Egypt

No. of Pages

5

Main Subjects

Medicine

Abstract EN

The position of the cochlear-implant electrode is important to audiological outcomes after cochlear implantation.

The common technique to evaluate the intracochlear electrode’s position involves the use of ionized radiation in MSCT, DVT, or flat-panel tomography (FPT).

Recent advances in knowledge regarding the handling of MRI artifacts in cochlear implantees indicate that estimating the intracochlear electrode’s position with an MRI could be possible.

This study’s aim was to evaluate the ipsilaterally position of electrodes using MRI at 1.5 T.

In a retrospective study of 10 implantees with postoperative need for MRI scanning, we evaluated the intrascalar electrode’s position using a T2-weighted sequence at 1.5 T.

We compared the resulting estimate of the intracochlear position with the estimates from the postoperative FPT scan and the intraoperative NRT ratio.

For each ear, the MRI-estimated scalar position corresponded with the estimated positions from the FPT and NRT ratio.

For eight ears, a scala tympani’s position was observed in the MRI.

In one case, an electrode scalar translocation was found.

In one case, the scala vestibuli’s position was observed.

Thus, MRI-based estimation of the scalar position of a cochlear-implant electrode is possible.

Limitations to this method include implant-specific magnet and fixation configurations, which can cause complications.

American Psychological Association (APA)

Stratmann, A.& Mittmann, P.& Rademacher, G.& Grupe, Gloria& Hoffmann, S.& Mutze, Sven…[et al.]. 2017. MRI-Based Estimation of Scalar Cochlear-Implant Electrode Position. BioMed Research International،Vol. 2017, no. 2017, pp.1-5.
https://search.emarefa.net/detail/BIM-1138071

Modern Language Association (MLA)

Stratmann, A.…[et al.]. MRI-Based Estimation of Scalar Cochlear-Implant Electrode Position. BioMed Research International No. 2017 (2017), pp.1-5.
https://search.emarefa.net/detail/BIM-1138071

American Medical Association (AMA)

Stratmann, A.& Mittmann, P.& Rademacher, G.& Grupe, Gloria& Hoffmann, S.& Mutze, Sven…[et al.]. MRI-Based Estimation of Scalar Cochlear-Implant Electrode Position. BioMed Research International. 2017. Vol. 2017, no. 2017, pp.1-5.
https://search.emarefa.net/detail/BIM-1138071

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-1138071