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造影效果
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  contrast effect
    Conclusion:Barium Sulphate Suspension has good MRI negative contrast effect, the Suspension presented here is suitable for clinical application.
    结论:硫酸钡混悬剂有良好的阴性MRI造影效果,本研究提出的硫酸钡混悬剂可望用于临床造影。
短句来源
    Materials and Methods : Specially designed Barium Sulphate Suspension for MRI gastrointestinal contrast was administered in examine of abdominal MRI for 100 times. The contrast effect, distribution and influence on demonstration of contours of abdominal organs were studied concerning this Suspension.
    材料和方法:使用自制MRI胃肠腔造影用硫酸钡混悬液对100例次的腹部MRI检查进行了胃肠造影,观察该混悬液的造影效果,分布情况,对腹部脏器轮廓显示的影响及副反应。
短句来源
    Conclusions: The contrast effect of low field permanent magnet type MRCP is the same with moderate and high field superconducting magnet type and similar in clinical application value.
    结论 低场强永磁型磁共振MRCP与中高场强的超导型磁共振MRCP同样具有很好的造影效果和同样的临床应用价值。
短句来源
    In control group, only single contrast effect was obtained.
    对照组 40例均为单钡造影效果
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  “造影效果”译为未确定词的双语例句
    Comparative study on outcomes of 16-slice spiral CT urography and CR excretory urogaphy
    16层螺旋CT泌尿系成像与CR静脉肾盂造影效果对比
短句来源
    Moreover, the amount of the gas produced and the intensity oftwo contrast agents (vitaminum B6 + sodium bicarbonate andvitaminum C + sodium bicarbonate) were compared in vitro andin vivo.
    通过在体内和体外对比研究维生素B6+碳酸氢钠和维生素C+碳酸氢钠两种造影剂的造影效果,明确维生素B6作为右心声学造影剂的优越性和可行性。
短句来源
    The visual contrast was qualitatively graded as 0, 1+. 2+and 3+.
    视觉造影效果以0,1+,2+和3+的分级方法进行定性分析。
短句来源
    The acoustic densitometries (AD) of the LAD areas were 11.69 ±1.61dB and 5.40±1.81dB, respectively before and after ligation of LAD ( P <0.001), and 11.02± 2.01 dB after transmyocardial laser revascularization, while no differences among the other regions in different periods.
    心肌打孔后造影效果表明,心肌供血改善并可清晰地见到造影剂沿透壁隧道注入心肌。 (2)缺血区结扎冠状动脉前后声学密度分别为1169±1.61dB,540±181dB,P<0.001;
短句来源
    The myocardial contrast agent perfusion and wall motion function of left ventricular walls was observed on the middle of papillary muscles scan plane with different instrumental settings.
    方洁 20只开胸犬以微量注射泵静脉连续滴注“全氟显”(滴注速度 5 mlimin和 10mUmin)进行实时心肌声学造影,左室乳头肌中段水平短轴切面观察左室各壁心肌的造影效果和室壁运动,以闪烁显像观察心肌内造影剂的再灌.必.注过程。
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  contrast effect
To compare the contrast effect in the right and left ventricular cavities, a new transpulmonary echocontrast agent, BY 963 and Albunex were intravenously administered to five non-anaesthetized dogs.
      
The relative depth of a pair of dots placed in front of the rectangle was also misperceived due to depth-contrast effect.
      
In this study, doses of 6 and 8 mg/kg CDP were shown to attenuate the negative contrast effect while smaller doses (2 and 4 mg/kg) influenced contrast to a lesser degree.
      
Rats shifted from 32% to 4% sucrose show a negative contrast effect, licking significantly less than animals that receive only 4% sucrose.
      
A simultaneous contrast effect of steady remote surrounds on responses of cells in macaque lateral geniculate nucleus
      
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Purpose: This study is focussed on the feasibility of Barium Sulphate Suspension used as an oral MRI contrast agent for GI tracts.Through this study a new Barium Sulphate Suspension formula was presented.Materials and Methods: The size of Barium Sulphate particles, relation between suspension-supporting agents, properties and Barium Sulphate Suspension's visicosity、MRI signal of auxiliary agents、concentration of Barium Sulphate Suspension were studied experimentaly.Through these studies the appropriate size...

Purpose: This study is focussed on the feasibility of Barium Sulphate Suspension used as an oral MRI contrast agent for GI tracts.Through this study a new Barium Sulphate Suspension formula was presented.Materials and Methods: The size of Barium Sulphate particles, relation between suspension-supporting agents, properties and Barium Sulphate Suspension's visicosity、MRI signal of auxiliary agents、concentration of Barium Sulphate Suspension were studied experimentaly.Through these studies the appropriate size range of Barium Sulphate particles were decided,a new Barium Sulphate Suspension formula was presented.This suspension has good stability, with 180%(w/v) concentration showing good MRI negative contrast effects,its auxiliary agents having no interfering effect on MRI signals. Its physical and chemical properties are in accordance with chinese pharmacopeia's requirements. Results: This study presented a new Barium Sulphate Suspension formula suitable for MRI GI tracts contrast,the contrast concentration was decided.Conclusion:Barium Sulphate Suspension has good MRI negative contrast effect, the Suspension presented here is suitable for clinical application.

探讨硫酸钡混悬剂用作MRI胃肠腔造影剂的可行性,提出一种适宜用于MRI胃肠造影的硫酸钡混悬剂配方。材料和方法:从硫酸钡粒径的大小、助悬剂的性能与混悬剂的粘度、辅剂的MRI信号、硫酸钡混悬液的浓度等方面进行了实验研究,确定了硫酸钡用于MRI胃肠造影适宜的粒径范围,提出了一种新的硫酸钡干混悬剂配方,其助悬剂使钡粒有良好的悬浮稳定性,其辅剂对MRI信号无明显影响,180%(w/v)浓度时有良好的MRI阴性造影效果,理化性状符合中国药典要求。结果:本研究提出了一种适宜用于MRI胃肠造影的硫酸钡混悬剂配方,初步确定了造影浓度。结论:硫酸钡混悬剂有良好的阴性MRI造影效果,本研究提出的硫酸钡混悬剂可望用于临床造影。

The efficacy and safety of a kind of Barium Sulphate Suspension specially designed for MRI gastrointestinal contrast were testified clinically in volunteers. Materials and Methods : Specially designed Barium Sulphate Suspension for MRI gastrointestinal contrast was administered in examine of abdominal MRI for 100 times. The contrast effect, distribution and influence on demonstration of contours of abdominal organs were studied concerning this Suspension. Results :with 180%(w/v) concentration this Suspension...

The efficacy and safety of a kind of Barium Sulphate Suspension specially designed for MRI gastrointestinal contrast were testified clinically in volunteers. Materials and Methods : Specially designed Barium Sulphate Suspension for MRI gastrointestinal contrast was administered in examine of abdominal MRI for 100 times. The contrast effect, distribution and influence on demonstration of contours of abdominal organs were studied concerning this Suspension. Results :with 180%(w/v) concentration this Suspension in-take could make gastrointestinal tracts appear hypointensity on MR images and such make them easy to be identified, the margins of abdominal organs easier to locate after contr st. There was no side-effect which needed medical intervention.Conclusion: This kind of Barium Sulphate Suspension used as MRI gastrointestinal contrast agent is safe and effective, suitable for clinical application.

目的:通过临床志愿者试用观察自行研制的MRI胃肠腔造影用硫酸钡混悬液的安全性和有效性。材料和方法:使用自制MRI胃肠腔造影用硫酸钡混悬液对100例次的腹部MRI检查进行了胃肠造影,观察该混悬液的造影效果,分布情况,对腹部脏器轮廓显示的影响及副反应。结果:临床试用表明自制硫酸钡混悬液以18096(W/V)浓度口服后使胃肠腔显示明确低信号,有利于腹部器官轮廓的显示,提高了腹部MRI诊断价值,口服后所有病人未出现需对症处理的副反应。结论:我们自行研制的MRI胃肠腔造影用硫酸钡混悬液安全有效,适于临床使用。

The purpose of this project was to compare the ability of the fundamental imaging and second harmonic imaging for assessing myocardial perfusion following intravenous ultrasound contrast agent injection to 10 normal open chest dogs. 0.01 ml/kg body weight of perfluorocarbon microbubbles was used for each. The short axis views at papillary level were obtained using a prototype with second harmonic imaging (HP)operating at 1. 8/3.6MHz. The acoustic densitometry was performed with a 41× 41 pixel sample volume within...

The purpose of this project was to compare the ability of the fundamental imaging and second harmonic imaging for assessing myocardial perfusion following intravenous ultrasound contrast agent injection to 10 normal open chest dogs. 0.01 ml/kg body weight of perfluorocarbon microbubbles was used for each. The short axis views at papillary level were obtained using a prototype with second harmonic imaging (HP)operating at 1. 8/3.6MHz. The acoustic densitometry was performed with a 41× 41 pixel sample volume within the center of the LV cavity or anterior myocardium. The visual contrast was qualitatively graded as 0, 1+. 2+and 3+. The visually marked contrast of myocardium was obtained in all injections with second harmonic imaging. In contrast, fundamental imaging produced less visual contrast of myocardium.The harmonic mode was significantly more sensitive than the fundamental mode and produced over once the anterior myocardial intensity of fundamental imaging (9. 8±1. 4 versus 6.5 ±1.1).However, the intensity in LV cavity was only twice as that of myocardium. Small dose of contrast agent with second harmonic imaging produced shorter shadowing. The ultrasound contrast agent did not cause any hemodynamic changes during intravenous injections. Conclusion: second harmonic imaging with new ultrasound contrast agent can be used to noninvasively assess myocardial perfusion and is significantly superior to the fundamental mode.

本文的目的是比较静脉注射声学造影剂后基波显像和二次谐波显像估价正常心肌血流灌注的能力。在10条开胸犬,静脉注射氟碳微泡造影剂(0.01ml/公斤体重)。使用二次谐波样机(HP)获得乳头肌水平左室短轴,探头频率为1.8/3.6MHz。将41×41像素的取样区置于左空腔和左室前壁心肌,用声学密度法进行定量分析。视觉造影效果以0,1+,2+和3+的分级方法进行定性分析。使用二次谐波时,18次静脉注射产生了明显的心肌显影(3级),且心肌显影的时间明显延长。而基波显像则14次出现了中等度的心肌显影(2级)。二次谐波产生的心肌声学密度较基波明显为高(9.8±1.4声学单位,6.5±1.1声学单位),两组之间有明显的统计学差别(P<0.001)。但左室腔的声学密度仅比心肌高一倍。二次谐波结合较低剂量的造影剂所引起的声影持续时间较短。静脉注射声学造影剂未引起血流动力学改变。结论:二次谐波显像技术结合新型声学造影剂可以非损伤性估价心肌血流灌注,这种方法明显优于目前临床使用的常规显像方法。

 
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