- 期刊
Quantitative Analysis of Acetabular Coverage in Young Children with Three-Dimensional Computed Tomography: the Technique, Principle, and Clinical Application
並列摘要
Measurement of acetabular anatomy and femoral head coverage in children’s hips were evaluated from 2D reformatted and 3D volumetric images of computed tomography (CT) data. A cartilage window CT technique was developed to facilitate visualization of the cartilaginous components of the hip joint. This imaging technique allowed visualization of rim defect, abnormal calcification within the cartilage, and irregularity as well as fragmentation of the cartilage surface for children suffering from hip dysplasia. The cartilaginous components were compared to the osseous components. Parameters representing the actual anatomy of acetabulum and the femoral head coverage, including diameters, shape, volume, surface area and fraction, 3D orientation of the acetabular rim, opening angle, femoral head coverage fraction, and CE angles were determined by digitization and calculation of 3D coordinates relative to a standardized pelvic reference frame. The principle and technique of this method were described. With the experience of this technique, it absolutely improves the application of 3D CT analysis of hip dysplasia in children under 10 years of age.
延伸閱讀
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