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ultrasound ablation
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  “ultrasound ablation”译为未确定词的双语例句
     Results The diameter of thrombus fragments were about 7.2±2.5μm after ultrasound ablation.
     结果消融后血栓碎片直径7.2±2.5μm;
短句来源
     The Experimental Study on Extracorporeal High Intensity Focused Ultrasound Ablation of Lung Tumor of the Rabbit
     高强度聚焦超声体外治疗兔肺肿瘤的实验研究
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     Two cases died of primary disease in 2~6 months after ultrasound ablation,there was no direct relation between the death and ultrasound ablation.
     死亡 2例分别为术后 2~ 6个月 ,死于原发病 ,与超声微创治疗无直接关系。
短句来源
     Interventional intravascular treatment was preformed in all cases: 15 cases were only treated with catheter-directed thrombolysis (Group A), and 9 cases were managed with ultrasound ablation and catheter-directed thrombolysis together (Group B) .
     按治疗方式分为2组:15例行静脉内导管直接灌注溶栓治疗(A组); 9例行超声血栓消融结合导管直接灌注溶栓治疗(B组)。
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     Conclusion: With the through-the-balloon ultrasound ablation system,electrical isolation of multiple PVs seems convenient,but its effectiveness still need to be evaluated.
     结论 :采用经球囊超声系统进行多肺静脉的电学隔离方法简便 ,但效果仍有待进一步评价
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  相似匹配句对
     Endovascular Ultrasound Ablation of Atherosclerotic Plaques
     动脉粥样硬化斑块的血管内超声消融
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     The research progress of ultrasound ablation for arrhythmia
     超声消融治疗心律失常的研究进展
短句来源
     Contragestation with ultrasound
     超声抗早孕
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     The results by ultrasound.
     结果表明超声可以强化臭氧向水中传质,并加快臭氧在水中的自分解;
查询“ultrasound ablation”译词为用户自定义的双语例句

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  ultrasound ablation
Initial Experience with a Novel Focused Ultrasound Ablation System for Ring Ablation Outside the Pulmonary Vein
      
Transmission electron microscopy of rabbit liver after high-intensity focused ultrasound ablation combined with ultrasound contr
      
Enhancement of ultrasound contrast agent in High-Intensity focused ultrasound ablation
      
Expression of Tumor Antigens and Heat-Shock Protein 70 in Breast Cancer Cells After High-Intensity Focused Ultrasound Ablation
      
Extracorporeal High Intensity Focused Ultrasound Ablation in the Treatment of Patients with Large Hepatocellular Carcinoma
      
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Purpose: To evaluate the efficacy and safety of perutanoous transluminal coronary ultrasound ablation (CUA) in patients with acute mndial infarction (AMI). Methods: 20 Patients (mean age 52. 3 ±11. 2 years) with AMI wer included for clinica study. They were randowhy assigned to CUA with adunctive PTCA group (n = 8) and na alon groIJp (n = 12). Treated lesions were in the left anterior daseending branch (n = 14), drcurnflex branch (n = 1) and right coroary artery (n = 5). Results: In 8 patients after treated...

Purpose: To evaluate the efficacy and safety of perutanoous transluminal coronary ultrasound ablation (CUA) in patients with acute mndial infarction (AMI). Methods: 20 Patients (mean age 52. 3 ±11. 2 years) with AMI wer included for clinica study. They were randowhy assigned to CUA with adunctive PTCA group (n = 8) and na alon groIJp (n = 12). Treated lesions were in the left anterior daseending branch (n = 14), drcurnflex branch (n = 1) and right coroary artery (n = 5). Results: In 8 patients after treated with CUA for 136 ±48 ar, chest twn was ralieved within 8 to 15 ndnutes, whereas chest pain was alleviated within 20 to 25 minutes in 12 patients with PTCA alone. be angiogrphy revealed that the pemtage of the cliameter stenosis(%D)of the infarcted arteries decnd frn 100 % to 56. 09 % ±15. 57 % (P <0. 001) after CUA and to 5. 29 % ±0. 34 % (P<0. 001)after FTCA, and that the Annirnal ltimen diameter increased from 0 mm to 1. 43 ±0. 24 mm (P < 0.001) after CUA and to 3. 08 ±0. 42 mm after PTCA (P<0.001). Angiographic findings shown TIMI grade incrrased from grade 1 to grade 3 after application of CUA. In PTCA alone group, MLD increased from 0 mm to 2. 87 ±0. 49 mm, and %D decnd from 100 % to 10. 27 % ±4. 36 %(P<0. 001) after PTCA. Intravascular ultnd itwng indicated that with CUA ther was little tbos on the surface of the lumen, whereas much more thrombus adhered to the lumen without CUA. No vessel dissection or mechanical injtiry to the coronary arteries treaed with CUA were found. Conclusions: Catheter delivered ultrasound energy can be effecively and safely used for percutaneous transluminal coronary ablation to treat the patients with AMI.

目的:本研究旨在评价经皮冠状动脉(冠脉)内超声消融治疗急性心肌梗死(AMI)的疗效与安全性。方法:研究对象为20例AMI的患者(男18例,女2例,年龄523±11.2岁),随机分为PTCA组12例和经皮冠脉内超声消融血栓(CUA)加PTCA组(CUA+PTCA组)8例。梗塞相关冠脉前降支14例,左回旋支1例,右冠脉5例。结果:CUA+PTCA组8例超声治疗136±48s后胸病在8~15min内缓解,PTCA组12例胸痛在20~25min内缓解。冠脉造影示CUA+PTCA组超声溶栓后即刻最小管腔直径(MLD)由开始时的0mm增大至1.43±0.24mm(P<0.001),%D由开始时的100%降低至56.09%±15.57%(P<0.001),TIMI由开始时的0级增加至3级。加行PTCA术后即刻MLD增大至3.08±0.42mm,狭窄直径百分比(%D)降低至5.29%±0.34%(P<0.001)。单独PTCA组12例术后即刻MLD由术前的0mm增大至2.87±0.49mm,%D由开始时的100%降低至10.27%±4.36%(P<0.001)。腔内超声显像CUA+PTCA组超声溶栓后即刻冠脉内膜面极少量残留...

目的:本研究旨在评价经皮冠状动脉(冠脉)内超声消融治疗急性心肌梗死(AMI)的疗效与安全性。方法:研究对象为20例AMI的患者(男18例,女2例,年龄523±11.2岁),随机分为PTCA组12例和经皮冠脉内超声消融血栓(CUA)加PTCA组(CUA+PTCA组)8例。梗塞相关冠脉前降支14例,左回旋支1例,右冠脉5例。结果:CUA+PTCA组8例超声治疗136±48s后胸病在8~15min内缓解,PTCA组12例胸痛在20~25min内缓解。冠脉造影示CUA+PTCA组超声溶栓后即刻最小管腔直径(MLD)由开始时的0mm增大至1.43±0.24mm(P<0.001),%D由开始时的100%降低至56.09%±15.57%(P<0.001),TIMI由开始时的0级增加至3级。加行PTCA术后即刻MLD增大至3.08±0.42mm,狭窄直径百分比(%D)降低至5.29%±0.34%(P<0.001)。单独PTCA组12例术后即刻MLD由术前的0mm增大至2.87±0.49mm,%D由开始时的100%降低至10.27%±4.36%(P<0.001)。腔内超声显像CUA+PTCA组超声溶栓后即刻冠脉内膜面极少量残留血栓;PTCA组术后即刻冠脉内膜面大量血栓。CUA+PTCA组超声溶栓后均无夹层分离等并发症,随访1~10个月无心绞痛发作;PTCA组有夹层分离等并发症发生,2例于术后3~4个月发作心绞痛,再狭窄率分别为68.12%与88.59%。结论?

Objective To investigate the biologic effects of high freqency ultrasound wave ablating ventricular myocardium in vivo. Methods The ventricular myocardium in 10 anaesthetized canines was ablated by transcatheter ultrasound wave with freqency of 10 4 MHz.The depth and shape of the ablated lesions were observed,and the temperature at the ablation site was measured.The lesions created by ultrasound wave and radiofrequency wave on myocardium in vitro were also studied and compared. Results In vivo ultrasound...

Objective To investigate the biologic effects of high freqency ultrasound wave ablating ventricular myocardium in vivo. Methods The ventricular myocardium in 10 anaesthetized canines was ablated by transcatheter ultrasound wave with freqency of 10 4 MHz.The depth and shape of the ablated lesions were observed,and the temperature at the ablation site was measured.The lesions created by ultrasound wave and radiofrequency wave on myocardium in vitro were also studied and compared. Results In vivo ultrasound ablation of ventricular myocardium could produce lesions of 10 mm in depth with clear cut border.The depth had linear relationship with energy application duration.The heating center caused by ultrasound wave located in the deep layer of myocardium.Contrarily,radiofrequency ablation produced wider,shallower lesions,and the heating center located at the myocardial surface of the ablation site. Conclusions High frequency ultrasound wave ablation can produce lesion deep enough in the myocardium,and the depth is controllable,implying that it can be used to ablate a focus in deep layer of ventricular myocardial.

目的 探讨超声消融活体心肌的效应特征 ,提供导管超声用以治疗心律失常的实验基础。 方法 用 10 .4MHz的超声导管消融 10只活体犬心肌 ,观察消融深度、形态和温度变化及其与射频消融心肌效应的差异。 结果 超声在活体犬可产生深达 10 mm的心肌消融 ,消融深度与消融时间呈良好相关且边界清晰 ;其热中心在心肌内部。而射频消融深度明显低于超声 ,其热中心在消融的心肌表面。 结论 超声可产生边界清晰且深入的心肌消融 ,消融深度可控 ,提示超声作为导管消融较为安全的能量适于消融深部病灶。

Objective To investigate the influence of various physical factors on the size of the resultant lesion during ultrasound catheter ablation. Methods An ultrasound catheter ablation system was constructed and a thermodynamic model in isolated perfused and superfused canine right or left free wall was established. Different levels of electrical power and acoustic time were adopted and the size of the resulting lesions was measured to observe the dose-response relationship. Lesions resulted by using different levels...

Objective To investigate the influence of various physical factors on the size of the resultant lesion during ultrasound catheter ablation. Methods An ultrasound catheter ablation system was constructed and a thermodynamic model in isolated perfused and superfused canine right or left free wall was established. Different levels of electrical power and acoustic time were adopted and the size of the resulting lesions was measured to observe the dose-response relationship. Lesions resulted by using different levels of power and duration of radiofrequency energy delivery were also observed for comparison. Results There was a linear relationship between the increasing electrical power and the depth of lesion. There were also positive relationships between the lesion area and the sonication time. Electrical power was a better predictor of the lesion depth, while energy is a better physical variable to describe the lesion area. Transducer-tissue contact pressure has no significant effect on the lesion size. The lesion depth of ultrasound ablation was much greater than that of the radiofrequency ablation. Conclusion In comparison with radiofrequency, ultrasound should be able to create the deeper lesions that should be beneficial for the treatment of ventricular tachycardia after myocardial infarction.

目的 探讨超声物理因素对其损伤灶的影响。方法 使用自行研制的超声导管消融系统,在犬离体右室或左室游离壁热动力学模型上进行超声心室肌消融,并与射频消融比较。结果 电功率与超声损伤灶深度线性相关,损伤面积与辐照时间有正相关关系。电功率是超声消融损伤深度较理想的预测因素,能量是描述损伤面积较好的物理量。换能器/组织接触压与损伤灶大小无明显关系。超声损伤灶的深度远大于射频损伤灶的深度。结论 与射频消融相比,超声消融可造成更深的心肌损伤灶,提示超声消融有可能消除位于较深心肌中的致心律失常病灶,这对于心肌梗塞后室性心动过速的消融有较大的意义。

 
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