Radiologic Examinations in Human Temporal Bone Specimens Using Digital Volume Tomography and High-Resolution Computed Tomography After Implantation of Middle Ear Prosthesis and Cochlear Implant Electrode Array

Bremke, Martin; Lüers, Jan-Christoffer; Stenner, Markus; Bovenschulte, H.; Dorn, Franziska; Unkel, Claus; Höllering, Jens; Beutner, Dirk

doi:10.1097/mao.0b013e31828bb73c

Cited by 15 publications

(12 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, the influence of these parameters can be neglected. At first glance, this is a little bit surprising, because CBCT is known for its reduced metal artefacts [16,26,27]. We ascribed this result to the use of filigree prostheses, which produce only few artefacts.…”

Section: Discussionmentioning

confidence: 63%

“…According to our practical experience, differences are more obvious in cochlear and active middle implants. In the study by Bremke et al [16] cochlear implant arrays demonstrated slightly more metallic artefacts than middle ear prostheses. Known typical CBCT artefacts, caused by the imaging technology with slight strips of increased density striking, especially in aired spaces [19], did not influence the diagnostics in our study.…”

Section: Discussionmentioning

confidence: 94%

“…Teymoortash et al [17] and Pein et al [19] showed a better visualisation of bony structures of the middle ear by CBCT compared to MDCT. Bremke et al [16] reported an excellent display of metallic implants on CBCT and MDCT. Different from our study they compared a 2 × 128-slice CT with CBCT, resulting in a non-significant better display of the prostheses on CBCT.…”

Section: Discussionmentioning

confidence: 98%

“…It does not deliver sufficient soft tissue information [14,16,28]. In the evaluation of middle ear prostheses, soft tissue analysis is of less relevance.…”

Section: Discussionmentioning

confidence: 99%

“…Several comparative studies between MDCT and CBCT indicate a comparable image quality and a lower radiation dose when using CBCT [13][14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Visualisation of passive middle ear implants by cone beam and multi-detector computed tomography: a comparative in vitro study

Nguyen

Kösling

Mlynski³

et al. 2016

Eur Radiol

View full text Add to dashboard Cite

• Middle ear prostheses became more filigree, leading to poorer visibility on CT. • High spatial resolution and paraxial reconstructions are necessary requirements for imaging evaluation. • CBCT and MDCT can identify type and positioning of titanium prostheses. • Metal artefacts play a minor part in filigree titanium prostheses. • Regarding visualisation of prostheses details, cone beam CT aids the evaluation.

show abstract

Section: Discussionmentioning

confidence: 63%

Section: Discussionmentioning

confidence: 94%

Section: Discussionmentioning

confidence: 98%

“…It does not deliver sufficient soft tissue information [14,16,28]. In the evaluation of middle ear prostheses, soft tissue analysis is of less relevance.…”

Section: Discussionmentioning

confidence: 99%

“…Several comparative studies between MDCT and CBCT indicate a comparable image quality and a lower radiation dose when using CBCT [13][14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Visualisation of passive middle ear implants by cone beam and multi-detector computed tomography: a comparative in vitro study

Nguyen

Kösling

Mlynski³

et al. 2016

Eur Radiol

View full text Add to dashboard Cite

show abstract

Detection of Tip Fold‐Over of the Slim Modiolar Electrode Using Intraoperative Mobile Cone‐Beam Computed Tomography

Inoue

Tona

Okano

et al. 2023

Otolaryngol.--head neck surg.

View full text Add to dashboard Cite

Objective. This study aimed to evaluate the importance of mobile cone-beam computed tomography in detecting tip fold-over of a slim modiolar electrode within the cochlea during surgery.Study Design. Retrospective case review.Setting. Tertiary medical center.Methods. From January 2020 to June 2022, 33 ears of 30 patients with normal cochlear morphology underwent cochlear implantation with slim modiolar electrodes and intraoperative mobile cone-beam computed tomography imaging. Furthermore, we retrospectively reviewed the medical records and images.Results. The tip fold-over of the electrodes was detected using mobile cone-beam computed tomography in 3 out of 33 ears (9.1%). We could not identify the tip fold-over by scouting plain X-ray images in 2 out of 3 cases before taking the cone-beam computed tomography images. Electrode removal and reinsertion were performed before wound closure and the successful reinsertion was confirmed by mobile cone-beam computed tomography. The folded electrode tips were located at 238.8°, 152°, and 185.8°. Conclusion.Intraoperative mobile cone-beam computed tomography is useful in detecting the tip fold-over of the slim modiolar electrodes during surgery. Therefore, it was possible to reinsert the electrodes in all cases before closing the wound, eliminating the need for revision surgeries. Moreover, the analysis of mobile cone-beam computed tomography images may help to elucidate the mechanisms of electrode tip fold-over.

show abstract

Evaluation of a minimally invasive surgical fixation technique for young children with the Concerto Pin cochlear implant system

Schnabl

Wolf‐Magele

Pok

et al. 2014

Eur Arch Otorhinolaryngol

View full text Add to dashboard Cite

In 2011, Med-El (Innsbruck, Austria) introduced a new cochlear implant system, designed to require a minimally invasive surgical technique and allow greater positional flexibility for its fixation on the skull. The Concerto Pin implant system is a good option for patients with thinner bone, such as children and elderly. The aim of this study was to investigate the implant’s stability in children using our minimally invasive surgical technique. This was a prospective, longitudinal study with a single-subject, repeated-examination design. Six children, implanted with a Concerto Pin using our minimally invasive surgical technique between October 2011 and September 2012, were assessed 1, 3 and 6 months after surgery. In each case, the implant remained in a stable position and no adverse events or problems with healing were observed at any time during the investigation. The minimally invasive technique and the method of implant fixation that bypass drilling a deep implant bed constitute a good option for patients with thinner bone, such as children. This clinical study shows the safety and stability of the Concerto Pin implant system using a minimally invasive surgical technique.

show abstract

Radiologic Examinations in Human Temporal Bone Specimens Using Digital Volume Tomography and High-Resolution Computed Tomography After Implantation of Middle Ear Prosthesis and Cochlear Implant Electrode Array

Abstract: Both DVT and high-resolution CT allow good overall image quality in temporal bones, with discrete advantages for digital volume tomographic scans in terms of the image quality of hard contrast objects like bony structures or metallic implants.

Cited by 15 publications

References 20 publications

Visualisation of passive middle ear implants by cone beam and multi-detector computed tomography: a comparative in vitro study

Visualisation of passive middle ear implants by cone beam and multi-detector computed tomography: a comparative in vitro study

Detection of Tip Fold‐Over of the Slim Modiolar Electrode Using Intraoperative Mobile Cone‐Beam Computed Tomography

Evaluation of a minimally invasive surgical fixation technique for young children with the Concerto Pin cochlear implant system

Contact Info

Product

Resources

About