血管学

Dynamic enhancement on MR imaging coincided with histologic data showing the locations and concentrations of blood vessels in physes, epiphyses, metaphyses and other anatomic regions.

组织学研究所显示的生长板软骨、骨骺软骨、干骺端等不同解剖区域的血管解剖及分布特征与相应部位的增强率及强化快慢所提示的血供状态基本相吻合。

Drug treatment group gavage for 40 days , and then the inferior vena cava blood , determination of the observed indicators and aortic wall histological changes .

给药组灌服药物40天，然后下腔静脉取血，测定各观察指标和主动脉血管壁组织学变化。

Histopathologic examination showed there was no irreversible pulp injury when the dentin surfaces were irradiated by Nd﹕YAG laser with 33 J/cm2 and 56 J/cm2 output (output : 1 W). Vessel dilatation and exudation were found when lased under 111 J/cm2 output.

病理组织学检查显示：在激光功率为1 W的条件下，33 J/cm2、56 J/cm2的激光能量密度不会对牙髓组织造成明显影响，111J/cm2时个别牙齿会出现血管扩张、渗出的现象；牙髓反应以3 d观察期最明显。

The histology shows a dermal proliferation of small, irregular branching capillaries and venules with inconspicuous lumina.

组织学显示真皮内小、不规则分支状毛细血管和小静脉的增生，伴不明显的血管腔隙。

5The dural mater is divided into three layers, the out layer and inside layer is fiberblast and fiber, the mesosphere is vessel and loosen fibers.

5胎儿的硬膜组织学结构分为三层，内外两层为硬膜结构，中间层为血管和疏松结缔组织。

Though it was slower in the frozen-thawed embryo transfer group than that of the fresh embryo transfer group, there were no significant differences in estrous cycle between experimental group and normal control group. The grafts were taken out and observed on day 63 after transplantation, rich blood vessels were formed on the cover of the graft, arterioles and venules could be seen under microscope. Histological examination of graft revealed that transplanted fetal ovary contained follicles in different developing stages, vesicula graafianae and corpus luteum were formed, and the morphous of graft was no obvious differences to normal ovaries.

冷冻移植组大鼠恢复动情周期虽稍短于新鲜移植组，但差异并无统计学意义。63 d后取出移植物观察，见移植物色泽红润，表面有丰富的血管形成，镜下见卵巢内有大量的小动脉和小静脉；移植物组织学检查发现卵泡的发育，光镜下可见不同发育阶段的卵泡，有成熟卵泡和黄体形成，形态与正常卵巢无明显差别。

S Objective To investigate the X ray radiation dosage of patients and physicians in the interventional examination and embolization in vascular malformation of spinal cord, and to analysis the factors which influence X ray radiation dosage as well as the ways to decrease the dosage.

目的 测量在脊髓血管畸形的介入放射学检查及治疗过程中患者及介入医生所受到的X线辐射剂量；分析影响X线辐射剂量的因素及其减低剂量的途径和方法。

Methods Thermoluminescence was used to measure the X ray radiation dosage of patients and physicians in the interventional examination and embolization in vascular malformation of spinal cord with 100 cases in our departm...

应用热释光测量法对我中心近期 10 0例脊髓血管畸形进行介入放射学检查和介入治疗辐射剂量测量。

SEM examination showed that the experimental group has regular spongiest structure,complete bone lacuna structure,partial broken os-teone and visible bone canaliculus, while the sham control group has disorderly structure, broken osrteone, little bone lacuna and total invisibility of bone canaliculus.

结果 X线片示A组右侧股骨头骨密度增高，透光区较小，B组骨密度减低，有大小不等透光区；ECT扫描示A组静态放射性分布中等浓聚，而B组静态图像放射性分布呈炸面包圈样改变，欠均匀；组织学检查显示A组骨空陷窝率、血管数、骨髓腔内脂肪细胞直径较B组明显改善(P＜0.01)；扫描电镜检查显示A组松质骨结构较规则，骨陷窝结构完整，部分骨板断裂，骨小管可见。B组结构紊乱不清，骨板断裂，骨陷窝少，骨小管消失。

In our research,Wistar rats and SD rats which were parathyroidectomized were used as donors and recepients respectively.The parathyroid gland of the Wistar rat were allografted into the cerebroventricle and other different sites of the brains in SD rat s tereotaxically. Using methods of testing serum Ca~(2+) concentration,histological examination,histochemical and immunocytochemical methods and electron microscopic observation,we investigated the survival of the grafting tissue,its revascularization, infiltrating of monocytes, changes of microglia and astrocytes, the relationship of the CNS with the immune system, and the mechanism of rejection were investigated.The results as following: I .Effects on PTG after allografting into cerebroventricle and cerebral parenchyma of the brain: Testing serum Ca~(2+) conc.

本研究以Wistar大鼠作为供体，切除甲状旁腺的SD大鼠作为受体，在立体定位下将同种异体的PTG移植到大脑的不同部位，设计了侧脑室-内分泌系统移植的代替途径，比较了侧脑室内移植和脑实质内移植的异同，通过测定血清Ca~(2+)的浓度、组织学检查、组织化学和免疫细胞化学以及电镜观察对移植后PTG组织的存活、血管的再生、单核细胞的浸润、CNS内胶质细胞的变化、对免疫系统的影响及免疫排斥的机制进行了研究，结果如下：一、同种异体PTG侧脑室内移植与脑实质内移植的比较：血清Ca~(2+)的检查发现，PTG侧脑室内移植后第7天，血清Ca~(2+)的浓度恢复到8mg％以上，一直持续到移植后第8-12周；移植后第12周仍有60％移植PTG的动物血清Ca~(2+)维持在正常水平。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。