정상 및 이형성 비구의 고해상 CT를 이용한 정량적 분석Three-dimensional CT based Quantitative Assessment of Normal and Dysplasia Acetabulum
- Other Titles
- Three-dimensional CT based Quantitative Assessment of Normal and Dysplasia Acetabulum
- Authors
- 안은수; 박상원; 박종훈; 서동훈; 노원; 이순혁
- Issue Date
- 2009
- Publisher
- 한국정밀공학회
- Keywords
- Acetabular Dysplasia (비구 이형성증); Center Edge Angle (CEA 각도); Three-dimensional Computed Tomography (3차원 전산화 단층 촬영)
- Citation
- 한국정밀공학회지, v.26, no.8, pp.126 - 131
- Indexed
- KCI
- Journal Title
- 한국정밀공학회지
- Volume
- 26
- Number
- 8
- Start Page
- 126
- End Page
- 131
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/120997
- ISSN
- 1225-9071
- Abstract
- Acetabular dysplasia is a condition defined by inadequate development of an individual’s
acetabulum. Individual diversity of the symptoms in this disease needs safe and accurate preoperative
planning. Technologies that utilize multidimensional image information are thus
important. The assessment method by Janzen et al. was suggested a coefficient method in
evaluation of acetabular dysplasia. In this study, we applied it, using a three-dimensional
computed tomography (3D CT) on the koreans. 19 cases of the normal hips and 4 cases of the
acetabular dysplasia were investigated to evaluate the proved method; 3D CT was used to define
the geometric center of the femoral head and to measure center edge angles at 10˚ rotational
increments around the acetabular rim. Mean and standard deviation in CEAs (Center Edge
Angle) of normal 19 hips at 10˚ rotational increments from anterior to posterior rim were
determined, and termed as a ‘normal curve’. Then this normal values were compared with the
CEA data measured from 4 cases of acetabular dysplasia patiens. Quantative comparison of the
CEA values between the normal cases and dysplasia cases was successfully demonstrated, and
thus, we claim that this simple CT method of assessing acetabular dysplasia can be well
applicable to diagnosis, quantification and surgical planning for adult acetabular dysplasia
patients.
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