查询词典 catheter

Application of Purkinje fibers and guidelines diastolic potential higher efficacy of radiofrequency catheter ablation.

应用浦肯野纤维和舒张期电位指引进行射频消融有较高疗效。

Results The bletilla colloid was a homogenous viscous colloid whose relative viscosity was 2324.6 mm2/s. It was easily injected through 4-F catheter and hyperattenuating under fluoroscopy, meanwhile, with good histocompatibility and hemo-compatibility, without pyrogenetic response and toxicity. In vitro, the mixture of bletilla colloid and MMC did not produce separation and suspention phenomena but released 50%of MMC at 1.8h and 100%at 3.4h. The bletilla colloid mainly embolized peripheral arteries, maintaining occlusion for 5 weeks and without formation of collateral circulation. The injuries of normal hepatic tissues were slight, without hepatic cytonecrosis.

结果 (1)白芨胶为一种均质的胶状物，有一定粘滞性，相对粘度2 324.6 mm2/s，不透X线，易经4F导管注射；(2)白芨胶具有良好的血液相容性和组织相容性，无致热原性及毒性作用；(3)白芨胶-丝裂霉素C体外混合后，无分层及悬浮现象，释放MMC 50%约需1.8小时，100%需3.4小时；(4)白芨胶主要栓塞末梢小动脉，栓塞牢靠，维持时间可达5周，不易形成侧支循环；(5)白芨胶栓塞对正常肝组织损伤轻微，未出现肝细胞坏死。

Objective To compare the relationship between measurement of the time constantly derived from aortic regurgitant velocity spectra and catheter derived time constant, and to evaluate the effects of hemodynamic flow states and regurgitant volumes on the Tau AR.

目的 对比研究由主动脉返流频谱得到的时间常数Tau和心导管根据左室压力曲线得到的时间常数的相关性，评估血流动力学参数和返流容积对Tau－AR的影响。

Methods 101patients were enrolled to perform central venous catheter placement.The patients were taken hor-izontal position,retrosternal raised30°orientation,head faced to the left.The puncturing point lower1.5cm subclavian（at1/3between sternoclavicular joint and shoulder joint）,injector was directed toward laryngeal prominence,parellel and slowly puncturing.

101例锁骨下静脉置管患者均取平卧位，肩背部垫高30°，头向左侧，取胸锁关节至胸肩关节连线的1/3处，锁骨下缘1.5cm为穿刺进针点，右手持注射器于穿刺点朝喉结方向平行缓慢进针，置管深度为15cm。

Objective: Generalize the technique of puncture the serositis effusion and retention of central venous catheter in serositis.

目的：推广经皮穿刺并浆膜腔内留置中心静脉导管引流浆膜腔积液的诊疗技术。

Two patients with sinoatrial node reentrant tachycardia underwent electrophysiologic study and radiofrequency catheter ablation.

报道2例窦房折返性心动过速的电生理特点及射频消融结果。

The present study was carried out on paddy osils under conditions of continuous application of organic manures.We found that organic manuer applied could provide nutrients deficient in rhizosphere, enchanced the formation of chelated compounds of Fe and Mn in root horizon and play a significant role in decreasing the lignifcation of meahanical tissue and in increasing the stelar catheter diameter of roots.

采用有机肥与化肥配施，在田间小区试验和盆栽试验的基础上，研究了有机肥促进根层络合态Fe和Mn的形成，补偿根际养分亏缺，并对根的皮下机械组织木质化程度降低，中柱导管的增大有明显的作用。

With support catheter insertion technique for treatment malignant and benign stenotic disease is an effective method.

食管—胃通道狭窄采用支撑管置入技术是治疗良恶性狭窄性疾病的有效方法。

Methods Three aged of female rhesus monkeys, by using stereotactic procedures guided by magnetic resonance imaging under sterile field conditions, a catheter was stereotactically implanted into the right putamen and delivery GDNF to treat PD monkeys.

PD猴动物模型3只，在无菌条件下，采用MRI引导立体定向技术，在PD猴模型右侧壳核置管所有实验动物置管输注GDNF。

Methods （1）310 patients of experimental group were performed with digital cine coronary arteriography,each of vascular edge of both the normal and the strictured segment was marked referring to the diameter of catheter,analysed the percentage of geometic stenosis,density contrast and stenosis length with computer.

（1）实验组310例完成数字电影冠状动脉造影后，以插入的导管管径为参照物，逐一标示正常段和狭窄段血管边缘，经计算机分析计算几何狭窄百分率、视频密度差异百分率和狭窄段长度。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。