DOI QR코드

DOI QR Code

A Novel Modeling Method for Manufacturing Hearing Aid Using 3D Medical Images

3차원 의료영상을 이용한 보청기 제작의 새로운 모델링 방법

  • Received : 2016.04.25
  • Accepted : 2016.06.11
  • Published : 2016.06.30

Abstract

This study aimed to suggest a novel method of modeling a hearing aid ear shell based on Digital Imaging and Communication in Medicine (DICOM) in the hearing aid ear shell manufacturing method using a 3D printer. In the experiment, a 3D external auditory meatus was extracted by using the critical values in the DICOM volume images, and the modeling surface structures were compared in standard type STL (STereoLithography) files which could be recognized by a 3D printer. In this 3D modeling method, a conventional ear model was prepared, and the gaps between adjacent isograms produced by a 3D scanner were filled with 3D surface fragments to express the modeling structure. In this study, the same type of triangular surface structures were prepared by using the DICOM images. The result showed that the modeling surface structure based on the DICOM images provide the same environment that the conventional 3D printers may recognize, eventually enabling to print out the hearing aid ear shell shape.

본 연구는 3차원 프린터를 이용한 보청기 이어 쉘 제작기법에서 보청기 이어 쉘 제작에 필요한 모델링 구조를 DICOM(Digital Imaging and Communication in Medicine) 영상에 의한 새로운 방법으로 제시하고자 하였다. 실험방법은 DICOM 볼륨 영상에서 임계치 값을 이용한 3차원 외이도를 추출하여 3차원 프린터가 인식할 수 있는 표준 형식의 STL(STereoLithography) 파일로 모델링 표면구조를 비교하였다. 이러한 3차원 모델링은 기존의 귓본 제작 후 3차원 스캐너에 의한 인접한 등치선 사이를 3차원 표면조각들로 채워 모델링 구조를 표현한 방법들로서 본 연구에서도 DICOM 영상에 의한 삼각형 표면구조를 동일하게 만들 수 있었다. 이는 DICOM 영상에 의한 모델링 표면구조가 기존 3차원 프린터가 인식할 수 있는 동일한 환경을 제공해 최종적으로 보청기 이어 쉘 형상을 출력 할 수 있음을 나타냈다.

Keywords

References

  1. Sejin Oh. Introduction to Hearing Aids, Sigma Press, pp. 1-258, 2015
  2. Jeonghun An, Yunhee Kim, Hyeseon Seo, et al. Domestic aids Use of hearing loss and failure analysis., State Institute of Health and Medical Research Report, pp. 1-273, 2011
  3. Freiber. Abdominal. aortic aneurysms, increasing infrarenal aortic diameter, and risk of total mortality and incident cardiovascular disease events: 10-year follow-up data from the Cardiovascular Health Study, Circulation, Vol.26, No.117(8), pp.1010-1017, 2008 https://doi.org/10.1161/CIRCULATIONAHA.107.720219
  4. Dong Won Kang, Eunbo Kang, Inseok Kang, et al. Computed Tomography, Daihak Book. pp.398-402, 2015
  5. Youngkyu Choi, Trends in surface modeling techniques for 3D Visualization Medical Image. The Korean Institute of Electrical Engineers, Vol.45, No.8, pp.30-35, 1996
  6. Yungchul Park, Yonghyeon Baek. The latest digital hearing aid technology trends Korea Information Processing Society Review, Vol.21, No5, pp.35-41, 2014
  7. SoonSuck Jarng. Digtal Hearing Aid Faceplate Manufacturing using FPCB, The Korean Institute of Electrical Engineers, Information and Control Symposium, pp.335-336, 2011
  8. SoonSuck Jarng, KyoungSuck Kim, YouJung Kwon. PCB Layout for Digital Hearing Aids, The Korean Society of Mechanical Engineers, Spring and Autumn Korean Society of Mechanical Engineers Conference, pp.1012-1015, 2004
  9. Seokyoon Choi, Changsoo Kim. Surface Rendering in Abdominal Aortic Aneurysm by Deformable Model, Journal of the Korea Contents Association, Vol.9, No.6, pp.266-274, 2009 https://doi.org/10.5392/JKCA.2009.9.6.266
  10. G. Hai, W. C. Siu, and C. H. Hou, Improved Techniques for Automatic Image Segmentation, IEEE trans, Circuits and Systems for video Technology, IEEE Trans. Vol.11, pp.1273-1280, 2001 https://doi.org/10.1109/76.974681
  11. T. McInerney, Deformable models in medical image Analysis: A survey, Medical Image Analysis, Vol.1 No.2, pp.91-108, 1996 https://doi.org/10.1016/S1361-8415(96)80007-7