小梁结构

After one year of low-calcium diet, the BMD of lumbar spine was measured again to ensure the eatablishment of osteoporosis animal model. According to the ladin square design, 20mg bBMP/fibrin sealant, 20mg bBMP and FS were injected into L4、L5、L6 vertebra respectively.

术后3个月时，①采用组织病理学对骨小梁结构进行组织病理学观察；②采用DEXA对腰椎椎体骨质的整体骨密度进行测量；③采用MicroCT对骨小梁微观三维结构进行分析；④采用生物力学实验评估椎体骨质的结构力学强度。

At ED10.5 tiny blood vessels in the myocardium first appeared and the myofibril, which was weakly stained compared to the cardiac muscle cell, first appeared in the ventricle.

ED12.5时心肌小梁结构第一次在心室出现，ED14.5时增厚，而在心房少见心肌小梁。

Results Early signs of ANFH using CT showed that, in 38 femoral heads 31 cases, there were radiate star shape of high density osteosclerosis of the trabeculae in 13 femoral head.Twenty five femoral heads showed osteosclerosis and trabeculae structure disappearing and vague,incoordinately low ostedensity area and cyst change.There were fracture under the cartilage and light subsid in 5 cases.The cases in stage Ⅰwere given decompression, while the pationtsresul in stageⅡand stageⅢ were given decompression and ostetransplant.

结果：早期ANFH的CT表现：31例38个股骨头，其中13个股骨头骨小梁呈放射状高密度的"星状征"，骨小梁境界清楚、锐利，属Ⅰ期；25个股骨头表现为骨硬化，骨小梁结构消失、模糊不清，骨密度减低及囊性改变，属Ⅱ期；并有5个股骨头在Ⅱ期影像学改变基础上出现软骨下骨折及轻微塌陷，属Ⅲ期。

At 3 months after operation, there are dense, firmly anchored bone with an haversian architecture at the interface between the hydroxyapatite and the cortical bone.

术后3个月，在涂层与皮质骨相邻处，出现致密、富含哈佛系统的栓状骨组织；在涂层与松质骨相邻处，出现大量新生骨小梁结构。

Precise focusing on the iris, low pulse energies and single pulse shots might minimize this risk. It may not be wise to utilize the Nd: YAG laser to enlarge an iridotomy.

在瞳孔缘至虹膜根部中外1／3处行Nd：YAG激光击射，冲击波本身未对小梁结构造成损伤，而在术后的房角沉积物吞噬清除过程中，会出现游走的小梁内皮细胞，并可见其变性及自溶崩解征象。

OsteoSet absorbed at 24 weeks after operation, more than 80% bone cavities were filled with bone trabecula, new bone linked with the normal bone natural.

术后6个月99.1%的颗粒被吸收，超过80%病例的骨空腔已形成良好的骨小梁结构，新骨经重塑形变的与周围的正常骨自然连接。

The OsteoSet absorbed obviously at 4 weeks after operation. At the same time the bone trabecula built and the bone density incremented.

术后4周的X光片可见OsteoSet骨移植替代品明显的再吸收，同时伴有纤细的骨小梁结构形成和骨密度增加。

RESULTS: HE staining showed that bone resorption in Ti treatment group was increased obviously and the structure of bone trabecula was disottlerly and osteoporotic, the volume of osteoclast was enlarged and number was increased. The findings were reduced in etanercep groups, especially in 200 μg/kg group.

结果：苏木精－伊红染色结果为单纯钛处理组骨吸收明显增加，骨小梁结构紊乱及骨质疏松，破骨细胞的形态变大，数目变多；依那西普干预组上述表现减轻，尤以200μg/kg剂量为明显。

objective to evaluate early signs of avascular necrosis of femoral head in adult by ct and to guide clinical treatment.methods the cases with suspicious diagnose of anfh were scaned in the both hip joints by x ray and ct to find the early signs of anfh with ct.results early signs of anfh using ct showed that, in 38 femoral heads 31 cases, there were radiate star shape of high density osteosclerosis of the trabeculae in 13 femoral head.twenty five femoral heads showed osteosclerosis and trabeculae structure disappearing and vague,incoordinately low ostedensity area and cyst change.there were fracture under the cartilage and light subsid in 5 cases.the cases in stage ⅰwere given decompression, while the pationtsresul in stageⅱand stageⅲ were given decompression and ostetransplant.conclusion ct results show that the sign of the high osteodensity and low osteodensity and cyst change can disply early anfh.

摘 要］目的：探讨成人股骨头缺血性坏死的早期ct征象并指导临床治疗。方法：对临床疑诊anfh的全部病例均行x线平片及ct检查，分析anfh的早期ct征象。结果：早期anfh的ct表现：31例38个股骨头，其中13个股骨头骨小梁呈放射状高密度的&星状征&，骨小梁境界清楚、锐利，属ⅰ期；25个股骨头表现为骨硬化，骨小梁结构消失、模糊不清，骨密度减低及囊性改变，属ⅱ期；并有5个股骨头在ⅱ期影像学改变基础上出现软骨下骨折及轻微塌陷，属ⅲ期。治疗结果：ⅰ期行钻孔髓内减压术，ⅱ、ⅲ期行钻孔减压植骨术。

Results Early signs of ANFH using CT showed that, in 38 femoral heads 31 cases, there were radiate star shape of high density osteosclerosis of the trabeculae in 13 femoral head.Twenty five femoral heads showed osteosclerosis and trabeculae structure disappearing and vague,incoordinately low ostedensity area and cyst change.There were fracture under the cartilage and light subsid in 5 cases.The cases in stage Ⅰwere given decompression, while the pationtsresul in stageⅡand stageⅢ were given decompression and ostetransplant.

结果：早期ANFH的CT表现：31例38个股骨头，其中13个股骨头骨小梁呈放射状高密度的&星状征&，骨小梁境界清楚、锐利，属Ⅰ期；25个股骨头表现为骨硬化，骨小梁结构消失、模糊不清，骨密度减低及囊性改变，属Ⅱ期；并有5个股骨头在Ⅱ期影像学改变基础上出现软骨下骨折及轻微塌陷，属Ⅲ期。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。