Sexual Dimorphism of Foramen Magnum between Two Different Groups of Indian Population: A Cross‑Sectional Cone‑Beam Computed Tomography Study  

作　　者：Vidisha Gargi Ravi Prakash SM Sangeeta Malik Nagaraju K Sumit Goel Swati Gupta 

机构地区：[1]Department of Oral Medicine and Radiology,Subharti Dental College,Meerut,Uttar Pradesh,India

出　　处：《Journal of Forensic Science and Medicine》2018年第3期150-155,共6页法庭科学与法医学杂志（英文）

摘　　要：The foramen magnum (FM), being a vital landmark at the base of the skull, includes interests to many fields of medicine. Many authors haverecounted the usefulness of the FM in gender determination. The emphasis of this study is to evaluate the shape and dimensions of the FM among males and females and to establish its role in sexual dimorphism using cone-beam computed tomography (CBCT). Furthermore, to evaluate the area and FM index (FMI) among males and females and finally to evaluate the differences in FM measurements if any in twodifferent regions of an Indian population. One hundred and ten CBCT scans (55 males and 55 females;age range, 20–80 years) were selectedfor this study. The sagittal diameter, transverse diameter, area, FMI, and circumference of FM were measured, and data were subjected to discriminant analysis for the evaluation of sexual dimorphism. The area of FM was the best discriminant parameter which was used to study the sexual dimorphism with an overall accuracy of 90.9%. It can be concluded that the reconstructed CBCT image provides valuable measurements for the FM and could be used for gender determination.

关 键 词：CRANIOMETRY DIMORPHISM foramen magnum 

分 类 号：R78[医药卫生—口腔医学]