Paouris Dimitrios, Kunzo Samuel, Goljerová Irina
Clinic of Pediatric Otorhinolaryngology of the Medical Faculty, National Institute of Children's Diseases, Comenius University, 83340 Bratislava, Slovakia.
J Pers Med. 2023 May 8;13(5):805. doi: 10.3390/jpm13050805.
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.
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).
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: = 0.831, = 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.
We observed excellent inter-rater reliability, a high agreement of outcomes, and reduced execution time using the AUTO method.
根据与病例相关的耳蜗参数选择电极长度正成为人工耳蜗植入术前的标准步骤。手动测量这些参数通常很耗时，而且可能导致不一致。我们的研究旨在评估一种新型的自动测量方法。
使用OTOPLAN软件的开发版本，对109只耳（56例患者）的术前HRCT图像进行回顾性评估。评估了手动测量（外科医生R1和R2）与自动测量（AUTO）结果之间的评分者间（组内）可靠性和执行时间。分析包括A值（直径）、B值（宽度）、H值（高度）和CDLOC长度（柯蒂氏器/基底膜处的蜗管长度）。
测量时间从大约7分钟±2分钟（手动）减少到1分钟（自动）。R1、R2和自动测量的耳蜗参数（单位：毫米，均值±标准差）分别为：A值：9.00±0.40、8.98±0.40和9.16±0.36；B值：6.81±0.34、6.71±0.35和6.70±0.40；H值：3.98±0.25、3.85±0.25和3.76±0.22；平均CDLoc长度：35.64±1.70、35.20±1.71和35.47±1.87。自动测量的CDLOC与R1和R2相比无显著差异（原假设：Rx CDLOC = AUTO CDLOC：分别为 = 0.831， = 0.242），R1与自动测量之间CDLOC的组内相关系数（ICC）计算值为0.9（95%置信区间：0.85，0.932）；R2与自动测量之间为0.90（95%置信区间：0.85，0.932）；R1与R2之间为0.893（95%置信区间：0.809，0.935）。
我们观察到使用自动测量方法具有出色的评分者间可靠性、结果高度一致性以及缩短的执行时间。
