Bulut Ozgur, Liu Ching-Yiu Jessica, Gurcan Safa, Hekimoglu Baki
Paleoanthropology, Senckenberg Centre for Human Evolution and Paleoenvironment, Eberhard Karls University of Tübingen, Germany.
Face Lab, Liverpool John Moores University, Liverpool, United Kingdom.
Leg Med (Tokyo). 2019 Sep;40:26-31. doi: 10.1016/j.legalmed.2019.07.002. Epub 2019 Jul 15.
Prediction of the nose from the skull remains an important issue in forensic facial approximation. In 2010, Rynn et al. published a method of predicting nose projection from the skull. With this method, three craniometric measurements (x, y, z) are taken, and these are then used in regression formulae to estimate the nasal dimensions.
The purpose of this study was to examine and test the accuracy of the Rynn et al. method and if necessary to adapt the formulae for this population.
A sample of 90 CT scans of Turkish adults was used in the study. The actual and predicted dimensions were compared using t-test. The age of the individuals ranged from 20 to 40 years by sex.
The descriptive statistics and correlations were calculated, and the actual and predicted measurements were compared. The differences between the actual and predicted values were statistically significant (p < 0.01), with -1 mm for males and -1.5 mm for females. Validation accuracies ranged from 76 to 92% in females and 72 to 82% in males. Recalibration equation accuracies ranged from 88 to 100% in females and 90 to 100% in males.
The results showed that the recalibration of the Rynn et al. method and its formulae gave satisfactory results with less error and can be employed in facial approximation cases.
从颅骨预测鼻子仍然是法医面部复原中的一个重要问题。2010年，林恩等人发表了一种从颅骨预测鼻子突出度的方法。使用这种方法时，需进行三项颅骨测量（x、y、z），然后将这些测量值用于回归公式以估计鼻子尺寸。
本研究的目的是检验和测试林恩等人方法的准确性，并在必要时针对该人群调整公式。
本研究使用了90例土耳其成年人的CT扫描样本。使用t检验比较实际尺寸和预测尺寸。按性别划分，个体年龄范围为20至40岁。
计算了描述性统计量和相关性，并比较了实际测量值和预测测量值。实际值与预测值之间的差异具有统计学意义（p < 0.01），男性为 -1毫米，女性为 -1.5毫米。女性的验证准确率在76%至92%之间，男性在72%至82%之间。重新校准方程的准确率女性在88%至100%之间，男性在90%至100%之间。
结果表明，林恩等人方法及其公式的重新校准产生了令人满意的结果，误差较小，可用于面部复原案例。
