主动脉内的

The typical manifestations of PHC were nodular,irregular and heterogenous enhanced regions in lesion,tumorous vessels could be seen in the arterial phase,the hyperdense regions in the arterial phases were changed to hpodense quickly in the portal phase;The characteristic findings of HCH were well-defined intense mural nodular enhancement in the arterial phase,and centripetally oriented enlargement of this nodular in the portal phase,the density of the nodular in the arterial phase were similar to that of aorta or hepatic arteries.

原发肝癌的典型表现是动脉期病灶内结节状、片状强化，并可见肿瘤血管影，强化部分在静脉期迅速呈低密度影；肝血管瘤的特征性表现为动脉期病灶边缘结节状强化，密度类似于主动脉或肝动脉，静脉期强化结节逐渐向病灶中央扩展；肝转移癌的主要表现为动、静脉期病灶边缘环状强化，中央部分无明显强化，静脉期还可见到"牛眼征"。

Among them, 20 patients were candidates of valve replacement and 18 PDA and pericarditis had their blood samples taken before operation,and 1,2,24 and 48 hours after closure of thorax for measurement of concentrations of CK、CK-MB and TnT,together with ECG recording. Results Of the 60 patients, concentrations of cTnT before operation were normal; 2 hours after aortic unclamping, the correlation coefficient between cTnT and aortic clamping was r = 0.873( P＜0.01), the regression analysis showed Y = 0. 019X-0. 026. Of the 20 patients, ECG showed the myocardium was ischemic; CK、CK-MB and cTnT all rose significantly, reaching the peak after closure of thorax. Of the 18 patients, the ECG and cTnT before operation and after closure of thorax were normal; except 2 patients with pericarditis.

结果 60例瓣膜手术患者术前cTnT均在正常值范围内，主动脉开放后2 h时，阻断时间和cTnT的相关系数为r=0.875(P＜0.01)，回归方程为Y=0.019X-0.026；其中20例瓣膜手术患者心脏经过阻断后，心电图有缺血性改变，周围血液中的CK、CK-MB和cTnT均有明显升高，分别在关胸后2 h达到高峰，数值分别为术前的12.6、9.2和257倍；18例行动脉导管结扎和心包剥脱术的患者术前和关胸后的心电图和血液中的cTnT均正常，CK和CK-MB除2例心包炎患者关胸后出现明显变化外，余均未见改变。

The section thickness was 5mm,the best section was selected before injection of nonionic contrast material, hen nonionic contrast material l.5m1/kg were injected via the antecubital vein in the rate of 2ml/sec, two serial scannings were obtained began at 6s and 2mm, for the first series the scanning internal was 3 seconds, for the second series, the scanning internal was 7 seconds.3 Methods of studying figureThe CT numbers of lesion on plain CT and on contrasted CT at serial phases were recorded, on which the time-intensity was produced.

计算出不同时相时的CT增强值，绘出动态增强曲线。在不知道病变病理结果的情况下，由三位有经验的医师在不知道病理结果的情况下记录上述病例的动态增强模式及其动态变化。 4。增强峰值与肺血供来源和血管密度的关系的评价其中32例准备手术的SPN，术前行CT同层动态增强扫描后测量增强后第一次循环肺动脉期与主动脉期CT值。然后分别与平扫时CT值比较；术后对瘤体CT测量兴趣区取材并行HE染色，随机取5次，在放大40倍的显微镜下观察5mm范围内直径0.02～0.1mm和＞0.1mm的微血管数目，5次的平均值颀士学泣衫艾中文赂要即为兴趣区对应的血管数目，井将其与瘤体增强峰值作相关性分析。

The patient was a 66-year-old male who presented with paraparesis. On examination, strength was 5/5 in both upper extremities and 3-4/5 in both lower extremities. Pricking sensation was relatively retarded below the sixth thoracic vertebra on both sides. Fine-touch sensation was limited below the ninth thoracic vertebra on the right side and below the eleventh thoracic vertebra on the left side. Responses to vibration and joint position sense were well preserved. Deep tendon reflexes were increased in his legs. He had voluntary anal contraction and preserved anal and bulbocavernous reflexes. MRI revealed dissection of the descending aorta from T4 to T10 levels with thrombus present in the false lumen, and the thoracic cord was marked atrophy, especially from T6 to T8 levels. To the best of our knowledge, no such case had been reported so far.

这是一位66岁的男性病患，到院时以下半身轻截瘫来表现，检查后发现其双上肢肌力为5/5而双下肢肌力则为3-4/5，刺痛觉在两侧第六胸椎以下异常，轻触觉在右侧第九胸椎与左侧第十一胸椎以下异常，震动觉与本体感觉则皆属正常，深肌腱反射在两下肢均有异常增强的情形，肛门的主动收缩正常且肛门反射与球体海绵体肌反射均正常，核磁共振影像显示降主动脉在T4到T10处有剥离的情形并於伪腔内发现血栓，此外，病患之胸部脊髓则有明显萎缩的现象，以T6到T8处最为明显，就目前可见的文献资料，并无类似的报告被提出。

We have previously shown that the vasodilator effect of protopine on rabbit aorta is related to the elevations of cAMP and cGMP.

本实验室先前的研究已证实，普罗托品(protopine，Pro)舒张家兔主动脉的作用，可能与其增加血管平滑肌细胞内cAMP和cGMP水平有关。

Subsequently, management in these patients includes life time medical treatment to minimise aortic wall stress, serial imaging to detect signs of dissection progression, redissection, or aneurysm formation, and endovascular or surgical intervention when needed.

因此，对这些患者的治疗包括终生药物治疗以减少主动脉管壁压力，定期影像学检查以早期发现夹层进展、再次夹层或动脉瘤形成的征象，并在必要时进行血管内介入或开放手术治疗。

Objectives The purpose of this study was to evaluate the effect and mechanism of As〓O〓-gelatin-coating stents on rabbits'aortas and smooth muscle cells.

目的 研究氧化砷-明胶涂层的超弹性NiTi支架对兔主动脉组织及平滑肌细胞的作用，旨在探讨氧化砷预防支架内再狭窄的机制。

Skeletal muscle ventricle constructed from conditioned skeletal*muscles, lined with autogenous or bovine pericardium, and connected with valved homografts between right atrium or venae cava and main pulmonary artery, has been demonstrated to be nonthrombogenic.

经耐疲劳训练的自体骨骼肌，内衬自体心包制成骨骼肌心室，并以同种带瓣主动脉吻合于右心房或上、下腔静脉与肺动脉之间来代替或辅助右心室的功能，可提高肺动脉收缩压及肺动脉血流并使之成为波动性，而且具有不需抗凝，无血栓形成等优点。

In the SMC of the normal rabbits, myofilaments and macula densa were abundant, few mitochondrla and endoplasmic reticulums were found around the nuclear, and the SMC was in the contractive stage. In the SMC of the model rabbits, few myofilaments and macula densa were found, rough surfaced endoplasmic reticulums and mitochondria were abundant, some phagocytosed much lipid and became foam cells, the SMC was in the synthetic stage.

实验12周，高脂组家兔主动脉斑块面积百分比为47.69±12.84％，内膜斑块厚度为0.68±0.08mm，内膜斑块横断面积与中膜面积比值为1.28±0.35；内膜脂质斑块弥漫且较厚，有大量的泡沫细胞堆积，可达8～10层，管腔直径变小，内膜不光滑；泡沫细胞内富含脂滴，呈椭圆形气球样，有的斑块中可见显著的平滑肌细胞增生及大量的弹力纤维形成。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。