手腕骨骨龄测量的计算机系统

A computer system for bone age measurement of hand radiographs

目的旨在建立计算机化骨龄测量系统，提高临床判断儿童生长发育的准确性和速度。方法采用中国人骨发育标准———ＣＨＮ记分法来估计中国儿童的骨龄，并运用图像增强技术改善手腕骨Ｘ线片的质量；同时开发了中国儿童骨龄测量的计算机系统。结果在该系统的支持下，用户可得到清晰的手腕骨Ｘ线图像，使需要评定的１４块手腕骨依次与已扫描进入系统的标准Ｘ线片比较，进行量化分级。从而得出受检儿童的骨龄值，打印出结果。结论实现了简单、快速、准确的骨龄定量评定，对选择正畸的最佳矫治时间具有指导意义。

Objective This study was to development a computer system for assessing bone age which would analyse children′s growth level accurately and quickly . Methods It used the standards of estimating skeletal maturity for Chinese (CHN) scoring method to assess the bone age of Chinese children. We applied image enhancement techniques for imprving the quality of the hand wrist radiographs, while an automated system was developed to implement this method. Results Users could get a clear and reliable radiograph through image processing, compare each bone of the hand wrist radiograph with that of the scanned image of the standard radiographs, then generate the stage of bone maturity. The computer would give out individual and total bone score and a value of bone age. Conclusion This system implemented evaluation of bone age rapidly and accurately, it would help orthodontist to choose the best time of treatment.