排序方式: 共有42条查询结果,搜索用时 0 毫秒
1.
近几年随着对低密度脂蛋白(LDL)在动脉粥样硬化(As)发生中作用的认识,脂质过氧化与As关系愈来愈引起人们的重视。 一、As患者和实验性As动物机体中脂质过氧化增强,抗脂质过氧化能力降低Valdi-mirov报道As患者血浆中脂质过氧化物(LPO)增加,Loper则进一步报道高脂血症患者血浆LPO含量增加与血浆胆固醇和甘油三酯含量的升高成正相关。国内陈瑗、周玫等观察到冠心病人和As家兔中LPO含量升高,硒谷胱甘肽过氧化物酶(Se-GSHPx)活性下降。若以Se-GSHPx/LPO 相似文献
2.
3.
4.
5.
In order to establish a simple and accurate method for the determination ofangiocardiographic ejection fraction (EFa),the end-diastole,end-systole,the first third andthe first half of the ejection phase on cineventriculograms of the right anterior oblique 30°(RAO 30°) in 42 subjects were analyzed.We found that the percentage of total axisshortening (T%~Δa) and EFa were in positive correlation.Their linear regression equationis EFa=0.1712+1.3303T%~Δa (r=0.880) and the quadratic equation is EFa=0.0396+2.4874T%~Δa 1.9787 (T%~Δa)~2 (r~2=0.981).The EF obtained in another 10 subjects by the linearand quadratic regression equations and area-length method are 0.469±0.176,0.464±0.208and 0.482±0.208,respectively.(P>0.05).It is our opinion that the regression method issimple and the results are positively correlated with the area-length method.It can be usedas a new method for calculating EFa. 相似文献
6.
动态分析了34例冠心病病人、6例原发性心肌病病人和25例正常人右前斜30°(RAO30°)左室造影影象,计算局部射血分数(EFR)和轴线缩短率(%△a),并以%△a做为一种定量指标评价室壁运动。此法简单实用,影象无需重叠,相对地不受胸廊和膈肌运动的影响。 相似文献
7.
作者掘告9例临床初诊为其他心脏病经2DE检查提示为限制型心肌病。其中6例并经心导管、心内膜心肌活检等证实。二维超声可显示限制性心肌病的特征性表观,为临床提供重要的诊断依据。 相似文献
8.
9.
10.
Left ventricular diastolic function in 49 subjccts were studiedcineangiographically and compared with relevant indexes of radionuclide angiography(RNA).Normalizcd peak filling rate(NPFR),1/3 filling fraction(FF1/3),lcftventricular compliance in 23 patients with coronary artery disease(CAD)weresignificantly lower than that in normal control group(n=14),and the time to peak fil-ling rate(TPFR)was longer in CAD patients,Hypertension group(n=12)had someslight changes in left ventricular diastolic function.However,50%(6/12)of paticnts inCAD group with normal EF(EF>0.65)had a diminished NPFR also.FF 1/3 ofcineangiography had a good correlation with that of RNA.The results indicated thatdiastolic filling function estimated cinceangiographically might reflcet earlier and more sensi-tive changes than left ventricular systolic function in patients with CAD.FF 1/3 mea-sured by RNA might also be a useful noninvasive index in evaluating diastolic filling fune-tion. 相似文献