摘要
提出一种关于血液粘弹性测量的校正方案.一套关于平均切变率(或测头振动频率)、抗凝剂、红细胞压积和红细胞聚集等因素对粘弹性测量值影响的实验证实了这一方案的可用性.同时,实验结果表明,尽管红细胞压积的影响十分显著,仍然可以通过定义一个新的复数型的粘弹性参数L^(?)来消除这一影响.因此,该参数对建立血液粘弹性的人群正常值范围有实际意义,实验结果还显示、测量时用EDTA作抗凝剂为宜.
A revised data - processing programme for the measurement of the v iscoelasticity of human blood with the rotary rheometer advancesed. A series of experiments, concerning the effects of average shear rates, RBC Hematocrit. RBC aggregation and choice of anticoagulants on the measurements of viscoelasticity of human blood demontrated the advantage of this programme. The results showed that although the effect of RBC Hematocrit on viscoelasticity is very signifinant, it can be eliminated by defining a new complex viscoelasticity parameter L*,which is independent of the hematocrit and can be considered as a useful parameter for establishing the normal range of viscoelasticity of human blood. Added to this, the results suggest that EDTA can be used as a recommendable anticoagulant.
出处
《生物物理学报》
CAS
CSCD
北大核心
1993年第1期169-173,共5页
Acta Biophysica Sinica
关键词
血液
粘弹性
抗凝剂
Blood Viscoelasticity Anticoagulant Hematocrit Average shear rate
