2) arterial spin labeling
动脉自旋标记
1.
Influence of lung inflation on arterial spin labeling signal in MR perfusion imaging of human lungs;
肺组织膨胀程度对动脉自旋标记MRI肺灌注的影响
2.
Magnetic resonance perfusion imaging of arterial spin labeling is a technique to quantificationally measure the cerebral blood flow using the labeling arterial blood as a endogenous tracer.
磁共振动脉自旋标记灌注成像技术是通过对动脉血作磁标记作为内源性对比剂,对脑组织的血流灌注进行定量测量的磁共振成像技术。
3.
Arterial spin labeling (ASL) is a perfusion imag ing method of magnetic resonance.
ASL(arterialspinlabeling)即动脉自旋标记技术 ,是一种以可自由弥散的水为内在示踪剂的MR灌注成像方法 ,它利用反转脉冲标记上游动脉血中的水质子 ,将下游成像层所获标记图像与没有标记的对照组减影而获得器官的血流量。
3) automatic mark-printing
自动标记打印
4) spin label
自旋标记
1.
The results of spin label showed that plasma membrane permeability was changed significantly among different aging tissues and increased by aging in control level.
自旋标记法研究质膜透性结果表明,处理前野生叶质膜透性普遍高于室内培养获得的原丝体和次生叶,处理后次生叶膜透性变化最大,比处理前增加4倍,其次为原丝体。
2.
WT5”BZ]The associated structure of TX 100/Hexanol/Octane/Water reverse microemulsion was studied by spin label method.
用电子自旋共振自旋标记方法对 TX- 1 0 0 /正己醇 /正辛烷 /水反相微乳液的缔合结构进行研究。
3.
ESR spin labeling studies indicated that GPCS exposure could increase the fluidity in the polar surface of cell membrane, but the membrane fluidity i.
以体外培养的中国仓鼠肺成纤维细胞V79为模型,用分光光度法和ESR自旋标记方法研究了吸烟烟气对细胞的损伤以及抗氧化剂茶多酚(GTP)的保护作用。
5) Spin-labeling
自旋标记
1.
Probing Free Radical Damage to Biological Molecules by Spin-labeling Fluorophore;
自旋标记荧光探针表征生物活性分子的自由基损伤
2.
In this review, the progress in research on application of nitroxide free radicals combined with EPR in pharmacokinetics is reviewed, such as EPR for directly detecting or EPR combined with spin-labeling technique and spin-trapping technique for indirectly detecting the nitroxide free radicals produced by medicine.
本文阐述了氮氧自由基结合EPR技术在药代动力学方面的研究进展,特别是EPR用于直接或结合自旋标记技术、自旋捕集剂间接检测药物产生的氮氧自由基等方面。
6) spin labeling
自旋标记
1.
The adsorption configuration and molecular motion behavior of sodium polyacrylate( Na PA ) on the surface of MgCO 3 have been investigated by using the electron spin resonance(ESR) combined with spin labeling technique.
采用电子自旋共振技术结合自旋标记技术研究了聚丙烯酸钠在碳酸镁表面的吸附构型和分子运动 。
2.
The fluidity of erythrocyte membrane in the presence of xenobiotics,such as hydroxylamine derivatives and phenolic compounds was studied by ESR in combination with spin labeling technique.
利用氮氧自由基自旋标记物CAT-16和5-DSA较为详尽地探讨了两类含羟基化合物-羟胺衍生物与苯酚取代物对红细胞膜流动性变化的影响。
补充资料:自旋-自旋弛豫
自旋-自旋弛豫
磁共振成像术语。又称T2弛豫或横向弛豫(transverse relaxation),指垂直于外磁场B0方向的磁化矢量的指数性衰减过程。磁共振成像时,对置于外磁场B0中的自旋系统施加90°射频脉冲,则自旋系统被激励,其净磁化矢量指向与外磁场B0垂直;射频脉冲终止后,被激励的质子与邻近的原子核之间发生相互作用,逐渐失去相位,净磁化矢量指向恢复与外磁场平行,该过程称自旋-自旋弛豫。自旋-自旋弛豫过程无能量交换。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条