目的探寻头颅CT片同一认定的方法。方法分别计算同一被检查者不同次头颅CT片指标差值和不同被检查者头颅CT片指标差值,再应用二分类logistic回归分析相同被检查者和不同被检查者指标差值,建立头颅CT片同一认定回归方程。结果建立头颅CT片同一认定方程46个。结论通过头颅CT片测量可以进行有效同一认定。 Objective To explore the method of identifying the same cranial CT slice. Methods The difference between the indexes of different sub-cephalic CT images and the difference of CT images of different subjects in the same subject were calculated respectively. Then the dichotomous logistic regression was used to analyze the differences between the same subjects and different subjects. The same piece of film regression equation. Results A total of 46 craniocerebral CT images were established. Conclusions Validated identity can be validated by CT cranial CT measurements.