贵州地区中国汉族人蝶颧（鳞）缝变化规律的CT探讨-影像医学与核医学专业论文.docxVIP

万方数据 万方数据 出现不同程度愈合。0～25 岁左、右侧蝶颧缝宽度与年龄呈显著负相关，左、右 侧蝶颧缝宽度样本均数比较无差异性。结论：通过对蝶颧缝愈合前变化规律及愈 合规律的研究，得出贵州地区汉族人群最早出现节段性部分愈合年龄为 14 岁， 最早出现节段性完全愈合的为 17 岁，最早出现完全部分愈合年龄为 15 岁，最早 出现完全愈合的为 24 岁，蝶颧缝愈合随年龄增长而逐渐增多，30 岁年龄组全部 出现不同程度愈合，贵州地区汉族人群蝶颧缝出现愈合时间为 14～30 岁。蝶颧 缝愈合前宽度随年龄增长而逐渐变窄直至愈合。蝶颧缝变化规律的研究对人类 学、法医学、考古学推断年龄具有重要意义，对于法医学同一认定技术体系建立 提供参考；可以正确认识颅底的正常结构，为某些颅底骨折的正确诊断提供帮助； 为儿童及新生儿颅缝分离的标准提供一定帮助；也为颅骨发育畸形方面提供相关 信息。 【关键词】 CT；蝶颧缝；颅骨缝；愈合规律；愈合时间。 III Discussion of Sphenozygomatic Suture Change Rule of Chinese Han population in GuiZhou Major: Medical Imaging and Nuclear Medicine Postgraduate: Zhao Yun Supervisor: Wang Bo [Abstract]Objective: 1. To observe and compare people’s sphenozygomatic suture chang rule before fusion of han population in Guizhou. 2.To observe the earliest time and rules of sphenozygomatic suture fusion of han populatio in Guizhou.Methods: Patients of han population who were checked with skull CT in Guiyang medical college affiliated hospital from April 2014 to March 2015 were collected. 10 cases from 0 to 30 year-old were selected which were totally 310 cases and without fracture ,damage or erosion of skull. Then we checked the physical examinations, imaging data and serum chemical tests of patients, all of who had no cartilage disorders, metabolic diseases and skeletal dysplasias. We adjusted the orbitomeatal line as the transverse baseline of the skull CT volume data in the sagittal plane. At the same time, we adjusted the marking lines in transverse position to show the neural tube symmetry of both side symmetrically. Then we used bone algorithm to reconstruct the transverse section in which layer thickness was 1.0mm,slice data was 1.0mm,bandwith was 25000-3000, and window level was 400-500. Then we saved these images into PACS, and use Syngo. via to observe the fusion condition of sphenozygomatic suture. We considered the sutures with filling with flocculent bony density shadow , partly or all sutures without transparent tissue in them as segmental partly fusion or partial