Objective: To explore the emerging time, situs and amorphous of ossification center with MRI examination, and compare the results with histology. 目的:探讨用MRI检测骨化中心出现的时间、位置、形态等,和组织学进行对比性研究。
Histological examination has confirmed there are ossification center in the MRI positive portion. H-E切片观测结果:证实了MRI检测阳性区有早期骨化中心征象。
The surface of ossification center of femoral head was accidented and inequable in thickness as compared with opposite side. 股骨头骨骺核与对侧对比表面凹凸不平,厚度不均,部分较对侧对比明显变小。
At the distal part of femur in fetus age of30 weeks, a cluster of lump-like osteogenic cell, osteoblast and basophlous osteoid filled among cells appeared at the secondary ossification center. 胎龄30周的股骨远端,骨化中心呈现团块状成群的骨原细胞和成骨细胞,嗜碱性的类骨质填充于细胞间;
Physis of the secondary ossification center; 二次骨化中心的生长板;
Results: In MRI group, 81% in 7 months group displayed ossification center. 结果:MRI检测结果:胎龄7个月+的81%股骨远端出现骨化中心征象,骨化中心始于偏心位。
Observation of primary ossification center of fetal cranium viscerale 胎儿面颅骨初级骨化中心的观察
Ultrasonic observation for the calcification development of the distal humeral epiphysis 'ossification center 肱骨远端骨骺骨化中心钙化演变的超声观察
The Secondary Ossification Center of Fetus 胎儿的次级骨化中心
To observe the correlativity between secondary ossification center and cartilage canals in cartilage epiphysis and the initial morphosis of the secondary ossification center. 为观察软骨骺内次级骨化中心与软骨管的关系,及次级骨化中心初始形态结构。
It was concluded that the cartilage canals of fetus play great roles in formation of secondary ossification center and exist in primary secondary ossification center. 说明胎儿股骨远端次级骨化中心初始时其内存在软骨管,软骨管对次级骨化中心的形成起作用。
Most textbooks on human anatomy and human embryology state that the appearance of the secondary ossification center ( SOC) of the fetus is considered to be after or around birth. 国内、外多数人体解剖学教科书或人体胚胎学专著,对胎儿次级骨化中心(secondaryossificationcenter,SOC)出现的时间比较一致的看法是在胎儿出生以后,或仅比较含糊地指出是在出生前后出现。
Objective To observe the occurring time of the primary ossification center of the fetus 'cranium viscerale. 目的观察胎儿面颅骨初级骨化中心出现的时间顺序。
The graph of phalange projection has obvious fluctuations but has much noise which will influence the results of ossification center location, so it is very important to reduce noise of projection. 投影图波动明显,但噪声比较大,影响骨化中心定位结果,因此去除投影噪声非常重要。
Phalange recognition mainly rely on ossification center, so the location of ossification center is key to phalange recognition. 指骨识别主要依靠骨化中心,因而骨化中心的定位成为指骨识别的关键。