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Utility of the morphometry of the maxillary sinuses for gender determination by using computed tomography

机译：上颌窦形态计量学在使用计算机断层扫描技术确定性别中的作用

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Background . It is impossible to use the routine skeletal parts for gender identification if the skeleton of unknown human remains is obtained in a fragmented and incomplete state. The alternative is to use other parts of the skeleton for gender identification. Objectives . The objective of this study was to assess the utility of the morphometry of the maxillary sinuses using computed tomography (CT) for gender determination. Material and Methods . The study, approved by the institutional ethics committee, analyzed CT scans of 200 patients (100 males, 100 females). The measurement of the mediolateral (ML), superoinferior (SI) and anteroposterior (AP) dimensions, as well as of the volume and the antero-lateral (AL) angle of both the maxillary sinuses, was performed using a CT scan. Head circumference and head area were also measured on an axial image in order to evaluate the correlation between the sinus volume and the head circumference and head area. Results . The mean of the mediolateral, superoinferior and anteroposterior dimensions, volume and AL angle of the right and left maxillary sinuses showed a statistically significant difference between males and females. Head circumference as well as head area were observed to be greater in males than in females, with a statistically significant difference. A positive correlation was observed between the volume of maxillary sinuses and the head circumference and head area on both sides and in both genders; however, it was not significant. Amongst all the parameters, the left AL angle with a 78.5% accuracy was found to be the best discriminative parameter, followed by the right AL angle with a 73% accuracy. The overall accuracy of the maxillary sinus parameters to identify gender was 86%. Conclusion . The maxillary sinus measurements, as well as head circumference and head area are valuable parameters for sex determination in forensic medicine, with a relatively good accuracy rate. However, the prediction rate can be increased by including the AL angle of the maxillary sinus.
机译：背景 。如果未知的人类遗骸的骨骼是碎片化和不完整的，则无法使用常规骨骼部位进行性别鉴定。另一种方法是使用骨架的其他部分进行性别识别。目标。这项研究的目的是评估使用计算机断层扫描（CT）进行性别确定的上颌窦形态测量的实用性。材料与方法 。该研究得到机构伦理委员会的批准，分析了200例患者的CT扫描（男性100例，女性100例）。使用CT扫描测量两个上颌窦的前外侧（ML），上下（SI）和前后（AP）尺寸以及体积和前后角（AL）角度。在轴向图像上也测量头围和头面积，以评估窦体积与头围和头面积之间的相关性。结果。左右上颌窦的中外侧，上下和前后位置的尺寸，体积和AL角的平均值在男女之间显示出统计学上的显着差异。男性的头围和头部面积大于女性，差异有统计学意义。男女双方上颌窦的容积与头围和头部面积之间呈正相关。但是，这并不重要。在所有参数中，精度为78.5％的左AL角是最好的判别参数，其次是精度为73％的右AL角。上颌窦参数识别性别的整体准确性为86％。结论。上颌窦测量以及头围和头面积是法医学中性别确定的重要参数，准确率相对较高。然而，可以通过包括上颌窦的AL角来增加预测率。

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