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communicating vessels
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  相似匹配句对
     Communicating and Converging
     交流与融汇——京派作家与外国诗意抒情小说
短句来源
     and communicating (C 7).
     交通段 (C7)。
短句来源
     The diameters of the vessels were measured.
     测量血管各部位的直径。
短句来源
     Obstruction of the Retinal Vessels
     视网膜血管阻塞
短句来源
     RESULTS:The blood vessels of pulp tissue were dense,and had many communicating anastomosis between microvessels.
     结果 :牙髓组织血管密集 ,微血管吻合较多。
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  communicating vessels
The article presents the experimental results of a study of the behavior of dry flowing materials in vibration communicating vessels.
      
The problems involved in developing explosion-safe sensors based on communicating vessels, placed at gas-regulator points, are considered.
      
We have looked for dc mass transport through solid 4He in a simple experiment with two communicating vessels filled with solid 4He in equilibrium with liquid 4He.
      
Filtration through a porous barrier between two communicating vessels
      
Treatment consists in either nephrectomy, partial nephrectomy, ligation of the communicating vessels, or arterial embolization.
      
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Objective:To study the role of the nourishing vessels of superficial venous trunks(NVSVT)in the survival of flaps. Methods:Everyone of 32 rabbits was designed two island skin flaps which were divided into 4 groups.The superficial venors trunks(SVT)were kept intact in group l,The SVT were ligated and amputated anputated in group 2,The central arteries and SVT were contained in group 3,There were no SVT and central arteries in group 4.Transparent chambers were performed in flaps,The NVSVT were observed through...

Objective:To study the role of the nourishing vessels of superficial venous trunks(NVSVT)in the survival of flaps. Methods:Everyone of 32 rabbits was designed two island skin flaps which were divided into 4 groups.The superficial venors trunks(SVT)were kept intact in group l,The SVT were ligated and amputated anputated in group 2,The central arteries and SVT were contained in group 3,There were no SVT and central arteries in group 4.Transparent chambers were performed in flaps,The NVSVT were observed through the chambers with an Olympus BH 2 microtelevision system. Results:Vascular plexus surroundering SVT were observed.In the vascular plexus,There were several microvessels which were nearest to SVT and flanked it straightly.The several microvessels had relativesy stable diameter,Anastomosed with each other through communicating vessels,Extended and branched follow SVT.Some exiguous end vessels reached and nourished the wall of SVT,the other end vessels distributed the nearby area of SVT. Conclusion:There are nourishing vessels in the SVT which play an important role in the survived of the skin flap. [

目的 :探讨浅静脉干滋养血管的分布及其在皮瓣成活中的意义。 方法 :新西兰大白兔 32只 ,每只兔耳形成蒂在近心端的岛状皮瓣 2块 ,按对血管蒂的处理不同分为四组 : 组单纯静脉干组 ; 组结扎静脉干组 ; 组动静脉干组 ; 组无血管组。在兔耳的背侧开窗 ,灌注液连续灌注下 ,Olympus B H- 2型微循环仪连续 2 4小时观察滋养血管的来源、分布及管径变化等 结果 :可见边缘静脉和中央静脉附近有数条较直的细小血管分布 ,沿静脉干呈网状分布于静脉干壁 ,并向远端和静脉干以外的区域分布 ,与中央动脉及其周围血管相沟通。 结论 :浅静脉干有自身的滋养血管 ,其对皮瓣的成活具有重要意义。

Objective To study the accuracy and practical value in the clinical diagnosis of Budd-Chiari syndrome by B ultrasonography and postcaval vein contrast examination.Methods 42 patients received B ultrasonographic scanning of the postcaval vein and the liver before the use of angiography.Angiography included Seldinger single-direction postcaval intubation(14 cases) and double-direction intubation(28 cases),and quick photographic observation.Results B ultrasonography showed that 18 cases had postcaval segmental...

Objective To study the accuracy and practical value in the clinical diagnosis of Budd-Chiari syndrome by B ultrasonography and postcaval vein contrast examination.Methods 42 patients received B ultrasonographic scanning of the postcaval vein and the liver before the use of angiography.Angiography included Seldinger single-direction postcaval intubation(14 cases) and double-direction intubation(28 cases),and quick photographic observation.Results B ultrasonography showed that 18 cases had postcaval segmental or membranous obstruction 24 cases had postcaval stricture at its opening,and 20 cases complicated with single right hepatic stricture,8 cases with left vein stricture and 12 cases with central hepatic caval stricture.Communicating branched vessels were formed among 16 cases between hepatic vessels were formed among 8 cases between hepatic left-middle,and middle-right hepatic veins each.Reticular communicating vessels were formed in 8 cases between left middle and right.5 cases had slight postcaval stricture and their blood flowed non-obstructedly postcaval veinography showed 12 cases had postcaval stricture at proximal end,28 cases total segmental or membranous obstruction.There were 8 cases respectively for hepatic central vein and right hepatic vein development each.The remaining 26 cases had no hepatic venous development.There were 30 cases who had obvious branched circulaltion formation,and even their branched circular vessels had tumous-like expansion.Conclusion B ultrasonography,as a way of easy,and no-trauma examination,is the first-choice means to screen the patients.Postcaval angiography is a means to diagnose Budd-Chiari syndrome,which is neccessary for the cases with total segmental or membranous obstruction to have double-direction postcaval angiography,especially for the cases to have interventive therapy.

目的 探讨B超及下腔静脉造影检查在布—加氏综合征临床诊断中的准确性和实用价值。方法  42例病人均于血管造影前行下腔静脉或肝部的B超扫描。血管造影采用Seldinger法行单向 ( 14例 )或双向 ( 2 8例 )下腔静脉插管法 ,并快速摄片观察。结果 B超发现下腔静脉节段性或膜性阻塞 18例 ,下腔静脉入口处狭窄 2 4例。其中伴有单纯性肝右静脉狭窄或 (和 )阻塞 2 0例 ,肝左静脉狭窄 8例 ,肝中静脉狭窄 12例。肝左—中、中—右肝静脉之间形成交通支血管各 8例 ,左—中—右之间形成网状交通血管 8例。 5例下腔静脉轻度狭窄 ,血流通畅。下腔静脉造影示 12例下腔静脉近端狭窄 ,30例呈节段性或膜性完全阻塞。肝中静脉和肝右静脉显影各 8例 ,余 2 6例肝静脉均未显影。有 2 6例见明显的侧枝循环形成 ,且可见有侧枝循环血管呈瘤样扩张。结论 B超作为一种简便易行的无创伤性检查是筛选病人的首选方法。下腔静脉造影是布—加氏综合征的确诊手段 ,对完全性节段或膜性阻塞者行双向下腔静脉造影是十分必要的 ,尤其是欲行介入治疗者更是如此。

Objective:To investigate the technique and clinical application of spiral CT virtual intravascular endoscopy (VIE) in assessment of vascular diseases.Methods:Contrast enhanced spiral CT was performed in 56 cases with clinically suspected vascular diseases.VIE was reconstructed using special software (navigator 2.0.20g/GE),and MPR,SSD,MIP were reconstructed in all cases.Results:Of those,VIE could depicte the intima flap and true or false lumen of aortic dissection,determine the site of rupture of aorta and the...

Objective:To investigate the technique and clinical application of spiral CT virtual intravascular endoscopy (VIE) in assessment of vascular diseases.Methods:Contrast enhanced spiral CT was performed in 56 cases with clinically suspected vascular diseases.VIE was reconstructed using special software (navigator 2.0.20g/GE),and MPR,SSD,MIP were reconstructed in all cases.Results:Of those,VIE could depicte the intima flap and true or false lumen of aortic dissection,determine the site of rupture of aorta and the position of stent,show the abnormal inner wall and narrowing of arteritis,show the calcification of vessel,assess the extent of SVC obstruction,and show the abnormal communicating vessels of pulmonary arteriovenous fistula.Conclusion:VIE can obtain virtual endoscopic images of the vascular inner wall,and better tridimensionally demonstrate the anatomy and lesion of vascular disease.Combined with other three-dimensional reformation methods,it can provide more useful information to surgeons,but the sensitivity and specificity of VIE need to be improved.

目的 :探讨螺旋CT仿真血管内镜 (VIE)成像方法及其临床应用价值。方法 :对 5 6例临床怀疑血管病变的患者进行螺旋CT增强扫描。容积扫描所得原始数据在同机工作站重建横断面图像 ,使用内镜导航软件进行仿真血管内镜(VIE)成像 ,并采用多平面重组 (MPR)、表面遮盖显示 (SSD)、最大密度投影 (MIP)等后处理技术显示并观察靶血管。结果 :VIE能显示主动脉夹层内膜片、真假腔 ,可显示或推测破口位置是否累及重要分支 ;能直观的显示假性动脉瘤破口大小及位置 ;能清晰显示时主动脉炎时不规则的血管内壁和狭窄 ;可显示术后血管支架位置及有无支架外渗漏 ;显示血管壁钙化情况 ;判断上腔静脉狭窄程度 ;观察动静脉瘘之间的异常血管连接。结论 :螺旋CT仿真血管内镜成像技术能获得血管管腔内表面的仿真内镜图像 ,可直观、立体地观察血管病变 ,有利于显示血管全貌 ,结合其它三维重组方法 ,可为临床提供更多的诊断信息 ,但敏感性和特异性有待提高。

 
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