Garrada Mohamed, Baflah Aseel, Zawawi Faisal
Otolaryngology and Head & Neck surgery, King Abdulaziz University, Jeddah, SAU.
Otolaryngology and Head & Neck Surgery, King Abdulaziz University, Jeddah, SAU.
Cureus. 2023 Oct 3;15(10):e46417. doi: 10.7759/cureus.46417. eCollection 2023 Oct.
Objectives Preoperative image analysis of skin flap thickness and determining the required magnet strength are important in the management of CI surgery. The primary aim of this study is to analyze the application of OTOPLAN®, a tablet-based otological preplanning tool, in assessing skin flap thickness. The secondary aim was to determine if there is any correlation between the skin flap thickness and the selected magnet strength. Methods Fifty-seven computer tomography (CT) image datasets of temporal bones of cochlear implant (CI) patients were collected. CE marked OTOPLAN planning otology software was used to load the patient's preoperative images for measuring the skin flap thickness in both axial and coronal views. To standardize the skin flap thickness measurement, the top of the pinna on the side of implantation was taken as the measurement point. Results The mean age of the patients was 7.98 ± 1.54 years. The body mass index (BMI) was not considered in this study. The average skin flap thickness was 4.5 ± 1.2 mm (range: 2-7 mm). The inter-rater reliability test revealed strong agreement between the two reviewers (Cronbach's alpha = 0.90). The majority of the patients were fitted with a magnet strength of 3. A statistically significant positive correlation was observed between the skin flap thickness and the age of the patients (r = 0.69, p = 0.002). Also, between the skin flap thickness and the magnet strength, a strong positive correlation was observed (r = 0.82, p < 0.0001). Conclusions OTOPLAN® is a reliable tool in the measurement of skin flap thickness with little effort. The age and the magnet strength were positively correlated with the skin flap thickness.
目的 术前对皮瓣厚度进行图像分析并确定所需的磁体强度在人工耳蜗（CI）手术管理中至关重要。本研究的主要目的是分析基于平板电脑的耳科术前规划工具OTOPLAN®在评估皮瓣厚度方面的应用。次要目的是确定皮瓣厚度与所选磁体强度之间是否存在任何相关性。方法 收集了57例人工耳蜗植入患者颞骨的计算机断层扫描（CT）图像数据集。使用经CE认证的OTOPLAN规划耳科软件加载患者的术前图像，以在轴向和冠状视图中测量皮瓣厚度。为了标准化皮瓣厚度测量，将植入侧耳廓顶部作为测量点。结果 患者的平均年龄为7.98±1.54岁。本研究未考虑体重指数（BMI）。皮瓣平均厚度为4.5±1.2毫米（范围：2 - 7毫米）。评分者间可靠性测试显示两位评估者之间有很强的一致性（Cronbach's alpha = 0.90）。大多数患者配备的磁体强度为3。观察到皮瓣厚度与患者年龄之间存在统计学上显著的正相关（r = 0.69，p = 0.002）。此外，在皮瓣厚度与磁体强度之间观察到很强的正相关（r = 0.82，p < 0.0001）。结论 OTOPLAN®是一种可靠的工具，用于测量皮瓣厚度，且操作简便。年龄和磁体强度与皮瓣厚度呈正相关。
