Wranne B, Ask P, Loyd D
Clin Physiol. 1985 Feb;5(1):81-8. doi: 10.1111/j.1475-097x.1985.tb00749.x.
A theoretical analysis is presented regarding factors of importance for the determination of distance of intrusion of the regurgitant jet in heart valve regurgitation. The analysis is based on hydrodynamic theory. In the idealized model situation, for a circular hole, the intrusion of the regurgitant jet is linearly related to the product of the fluid mean velocity in the orifice and the diameter of the orifice. This was also shown to be true in an experimental fluid model. Thus, volume regurgitation cannot be quantified by the measurement of distance of intrusion of the regurgitant jet alone. On the other hand, an estimate of volume regurgitation can, in the idealized situation, be obtained if mean fluid velocity in the orifice, distance of intrusion of the jet and regurgitation time are known.
本文针对心脏瓣膜反流中反流射流侵入距离测定的重要因素进行了理论分析。该分析基于流体动力学理论。在理想化模型情况下，对于圆形孔洞，反流射流的侵入与孔口处流体平均速度和孔口直径的乘积呈线性关系。这在实验流体模型中也得到了证实。因此，仅通过测量反流射流的侵入距离无法对反流体积进行量化。另一方面，在理想化情况下，如果已知孔口处的流体平均速度、射流侵入距离和反流时间，就可以估算反流体积。
