中国汉族成人颅骨CT片同一认定方法的研究

目的建立对中国汉族成人颅骨CT片进行同一认定的方法。方法按照纳入标准收集100例中国汉族成人颅骨CT片，对确定的识别指标进行观察和测量，对各指标的观测结果进行分类编码，然后按观测顺序编制特异的12位颅骨CT片识别编码。运用SPSS13．0统计学软件对所得数据进行各指标年龄和性别差异的统计学分析，利用个人识别能力公式计算单个指标和总体指标的个人识别能力。结果12项识别指标中有6个指标存在男女性别差异；12项指标累计个人识别能力可达到99．9997997％。结论本文确定中国汉族成人颅骨CT片12项观测指标，利用指标分类编码法可进行中国汉族成人颅骨CT片的同一认定。

The study of identification methods on Chinese Han nationality adult skull CT films

objective To establish a method to do identification of Chinese Han nationality adult skull CT films.Methods Collect skull CT films of Chinese Han nationality adult according including criterion.We use the image processing and measure function of efilms 2.0 to do observation and measurement for the 12 identification indexes.And more,we make the classific code for each result of the indexes.Then we make a 12-bit identification code for the skull CT films by order.We use SPSS 13.0 to do statistical analysis on the difference of the age and sex by using the data we had collected.Last we use discrimination power formula to calculate the discrimination power of the individual index and total indexes.Results There are six indexes among twelve identification indexes have sexual differentiation;The discrimination power of the twelve indexes adding up together is 99.9997997%.Conclusion We make sure that there are 12 indexes for skull CT films of Chinese Han nationality adult in this study.Using the index classific code we carry out the identification of Chinese Han nationality adult skull CT films.