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Intra-operative Optical Coherence Imaging of In-vivo Chronic Otitis Media followed by Post-operative Audiogram Assessments
IEEE Journal of Selected Topics in Quantum Electronics ( IF 4.9 ) Pub Date : 2021-07-01 , DOI: 10.1109/jstqe.2020.3022927
Hayoung Kim , Jaeyul Lee , Ruchire Eranga Wijesinghe , Jeong Hun Jang , Mansik Jeon , Jeehyun Kim

The successful surgery of chronic otitis media (COM) is challenging; this depends on the surgeon's knowledge of the optical visibility of surgical microscopes. Herein, we reported the utilization of intra-surgical optical coherence tomography (OCT) system to effectively guide the surgery of COM based on augmented reality with cross-sectional images. The intra-surgical spectral-domain OCT system with a center wavelength of 846 nm was capable of obtaining non-invasive, high-resolution, and high-speed visualizations with an axial resolution of 8 ${{\bf \mu }}$m, lateral resolution of 30 ${{\bf \mu }}$m, and an extended working distance of 280 mm. Three patients with COM were involved in this research. The lesion conditions of the temporal bone were observed with computed tomography pre-operatively. Furthermore, pure-tone audiogram examinations were performed to evaluate pre and post-surgical conditions. The results revealed that the averaged air-bone gap of 500 Hz, 1 kHz, 2 kHz, and 4 kHz in all cases improved to 61%. Thus, the research proves that the experimental procedure can be beneficial and clinically applicable with the developed intra-surgical OCT system for future otolaryngological assessments.

中文翻译:

体内慢性中耳炎的术中光学相干成像,随后进行术后听力图评估

慢性中耳炎 (COM) 的成功手术具有挑战性;这取决于外科医生对手术显微镜光学可见性的了解。在此,我们报告了利用手术内光学相干断层扫描 (OCT) 系统基于横截面图像的增强现实有效指导 COM 手术。中心波长为 846 nm 的手术内谱域 OCT 系统能够获得轴向分辨率为 8 ${{\bf \mu }}$m 的非侵入性、高分辨率和高速可视化,横向分辨率为 30 ${\bf \mu }}$m,扩展工作距离为 280 mm。三名 COM 患者参与了这项研究。术前用计算机断层扫描观察颞骨病变情况。此外,进行纯音听力图检查以评估手术前和手术后的状况。结果显示,在所有情况下,500 Hz、1 kHz、2 kHz 和 4 kHz 的平均气骨间隙提高到 61%。因此,该研究证明,该实验程序对于未来耳鼻喉科评估的开发的手术内 OCT 系统是有益的和临床适用的。
更新日期:2021-07-01
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