Anatomical Variations of the Epitympanum and the Usable Space for Middle Ear Implants Analyzed With CT-assisted Imaging Using a Tablet-based Software

Grueninger, Ivo; Lippl, Lisa; Canis, Martin; Simon, Florian; Spiro, Judith; Spiegel, Jennifer L.; Hempel, John Martin; Müller, J. M.; Volgger, Veronika

doi:10.1097/mao.0000000000003486

Cited by 3 publications

(1 citation statement)

References 34 publications

(57 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…OTOPLAN ® (CASCINATION AG, Bern, Switzerland, in corporation with MED-EL, Innsbruck, Austria) is the surgical planning software for otological procedures. The software has dedicated manual, semi-automatic, and automatic planning tools for application in general otology [ 29 ] and pre-operative surgical planning and reconstruction [ 30 , 31 , 32 , 33 , 34 , 35 ], as well as in post-operative image analysis [ 23 , 36 ] in hearing implant patients. For cochlear measurements specifically, the software requires a user to manually define the cochlear view and measure the cochlea’s diameter, width, and height, resulting in automatically calculated Cochlear Duct Length (CDL OC ) at the level of the Organ of Corti/Basilar membrane.…”

Section: Introductionmentioning

confidence: 99%

Validation of Automatic Cochlear Measurements Using OTOPLAN® Software

Paouris

Kunzo

Goljerová

2023

JPM

View full text Add to dashboard Cite

Introduction: Electrode length selection based on case-related cochlear parameters is becoming a standard pre-operative step for cochlear implantation. The manual measurement of the parameters is often time-consuming and may lead to inconsistencies. Our work aimed to evaluate a novel, automatic measurement method. Materials and Methods: A retrospective evaluation of pre-operative HRCT images of 109 ears (56 patients) was conducted, using a development version of the OTOPLAN® software. Inter-rater (intraclass) reliability and execution time were assessed for manual (surgeons R1 and R2) vs. automatic (AUTO) results. The analysis included A-Value (Diameter), B-Value (Width), H-Value (Height), and CDLOC-length (Cochlear Duct Length at Organ of Corti/Basilar membrane). Results: The measurement time was reduced from approximately 7 min ± 2 (min) (manual) to 1 min (AUTO). Cochlear parameters in mm (mean ± SD) for R1, R2 and AUTO, respectively, were A-value: 9.00 ± 0.40, 8.98 ± 0.40 and 9.16 ± 0.36; B-value: 6.81 ± 0.34, 6.71 ± 0.35 and 6.70 ± 0.40; H-value: 3.98 ± 0.25, 3.85 ± 0.25 and 3.76 ± 0.22; and the mean CDLoc-length: 35.64 ± 1.70, 35.20 ± 1.71 and 35.47 ± 1.87. AUTO CDLOC measurements were not significantly different compared to R1 and R2 (H0: Rx CDLOC = AUTO CDLOC: p = 0.831, p = 0.242, respectively), and the calculated intraclass correlation coefficient (ICC) for CDLOC was 0.9 (95% CI: 0.85, 0.932) for R1 vs. AUTO; 0.90 (95% CI: 0.85, 0.932) for R2 vs. AUTO; and 0.893 (95% CI: 0.809, 0.935) for R1 vs. R2. Conclusions: We observed excellent inter-rater reliability, a high agreement of outcomes, and reduced execution time using the AUTO method.

show abstract

Section: Introductionmentioning

confidence: 99%

Validation of Automatic Cochlear Measurements Using OTOPLAN® Software

Paouris

Kunzo

Goljerová

2023

JPM

View full text Add to dashboard Cite

show abstract

Revision surgery after stapedectomy

Sharaf

Müller

2023

HNO

View full text Add to dashboard Cite

Revisions after prior stapes surgery: aspects on indication, intraoperative findings and surgical strategies

Sharaf,

Grueninger,

Alekuzei

et al. 2024

Eur Arch Otorhinolaryngol

View full text Add to dashboard Cite

Objective Primary stapes surgery is considered a challenging intervention in ear surgery. Despite an risk of deafness in 0.5–1 percent, this procedure has still a good benefit-risk ratio due to the improvement in hearing and quality of life that is usually achieved. However, revision after prior stapes surgery is considered even more challenging. Revisions after stapes surgery are very heterogeneous procedures, both in terms of the indication and the surgical strategy and are generally considered to be significantly more demanding. Reasons for complications after prior stapes surgery as well as strategies for successful revisions are not well described in the literature. Methods Retrospective cohort study, tertiary referral center. 124 cases of revisions after prior stapes surgery were identified between 2011—2022 and are analyzed based on biographic data, clinical, audiological, and intraoperative findings as well as the eventual therapy. Cases were analyzed regarding indication, intraoperative finding and the surgical strategy chosen. Results Acute, subacute, and long-term complications of the primary intervention as well as other incidental reasons such as progressive hearing loss can be identified as indication for revision surgery. Preoperative clinical findings were correlated to intraoperative findings and surgical strategies. Audiological results are discussed. Conclusions Different recommendations for the indication of a surgical revision can be derived depending on the individual preoperative case history and findings. In addition, there are patterns regarding the chances of success of a revision, especially in cases of persistent conductive hearing loss chances of hearing improvement seem possible in more than 80% of cases.

show abstract

Anatomical Variations of the Epitympanum and the Usable Space for Middle Ear Implants Analyzed With CT-assisted Imaging Using a Tablet-based Software

Cited by 3 publications

References 34 publications

Validation of Automatic Cochlear Measurements Using OTOPLAN® Software

Validation of Automatic Cochlear Measurements Using OTOPLAN® Software

Revision surgery after stapedectomy

Revisions after prior stapes surgery: aspects on indication, intraoperative findings and surgical strategies

Contact Info

Product

Resources

About