Measurement of Skull Size on Computed Tomography Images for Developing a Bone Conduction Headset Suitable for the Korean Standard Head Size

Cheol Hyo Ku; Soo Won Kim; Ji Young Kim; Seung Won Paik; Hui Joon Yang; 이지현; 서영준

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저자정보: Cheol Hyo Ku (Department of Otorhinolaryngology Yonsei University Wonju College of Medicine Wonju Korea) Soo Won Kim (Department of Medicine Yonsei University Wonju College of Medicine Wonju Korea) Ji Young Kim (Department of Medicine Yonsei University Wonju College of Medicine Wonju Korea) Seung Won Paik (Department of Otorhinolaryngology Yonsei University Wonju College of Medicine Wonju Korea) Hui Joon Yang (Department of Otorhinolaryngology Yonsei University Wonju College of Medicine Wonju Korea) 이지현 (연세대학교) 서영준 (연세대학교)

저널정보: 대한청각학회 Journal of Audiology & Otology Journal of Audiology & Otology Vol.24 No.1

발행연도: 2020.1

수록면: 17 - 23 (7page)

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Background and Objectives: We aimed to measure the head dimensions on computed tomography (CT) images, to compare them to directly measured head dimensions, and to predict a new parameter of bone thickness for aiding bone conduction implant (BCI) placement. Subjects and Methods: We reviewed the facial and mandibular bone CT images of 406 patients. Their head sizes were analyzed using five parameters included in the 6th Size Korea project, and they were divided into age groups (ranging from the 10s to the 80s). We compared the head length, head width, sagittal arc, bitragion arc, and head circumference in the CT and Size Korea groups. We also added the parameter bone thickness for aiding BCI placement. Results: All the head size parameters measured using CT were significantly smaller than those measured directly, with head length showing the smallest difference at 7.85 mm. The differences in the other four parameters between the two groups according to patient age were not statistically significantly different. Bone thickness had the highest value of 4.89±0.93 mm in the 70s and the lowest value of 4.10±0.99 mm in the 10s. Bone thickness also significantly correlated with head width (p=0.038). Conclusions: Our findings suggested that the CT and direct measurements yielded consistent data. Moreover, CT enabled the measurement of bone sizes, including bone thickness, that are impossible to measure directly. CT measurements may complement direct measurements in the Size Korea data when used for developing bone conduction hearing devices (BCIs and headsets) for the Korean population.

#Bone conduction implant · Headset · Size Korea · Computed tomography · Temporal bone

참고문헌 (18)

참고문헌 신청

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Tae Hoon Kong / 2019 / Evaluation of wireless Bluetooth devices to improve recognition of speech and sentences when using a mobile phone in bone conduction device recipients / European Archives of Oto-Rhino-Laryngology 276(10):2729~2737

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