Leivestad T, Brodwall E K, Simonsen S
Scand J Clin Lab Invest. 1978 Sep;38(5):495-9. doi: 10.1080/00365517809108456.
The single bolus thermodilution method for measurement of renal vein blood flow was tested. In model experiments the thermodilution method was compared with graduated cylinder measurements over a flow range from 50 to 1050 ml/min. There was a good correlation between the two methods (r = 0.98) with a mean of differences of 5.2%. In eighteen patients measurements were performed in duplicate in thirty-one renal veins. Comparison was made between the first (x) and second (u) measurement--performed within 3 min. The correlation between the two was very good (r = 0.99; y = 1.03x - 11.48). In twelve patients bilateral renal vein blood flow measurements were performed simultaneous to blood flow measurement by PAH clearance. The correlation between total flow measured by thermodilution (y) and by the clearance method (x) was good (r = 0.98; y = 0.79x + 221). It is concluded that the thermodilution method requires catheterization of the renal veins, but is otherwise simple to perform, is inexpensive and gives reliable results. It is particularly advantageous when repeated measurements in the study of acute changes in renal haemodynamics is desirable.
对测量肾静脉血流量的单次团注热稀释法进行了测试。在模型实验中，将热稀释法与量筒测量法在50至1050毫升/分钟的血流范围内进行了比较。两种方法之间具有良好的相关性（r = 0.98），平均差异为5.2%。在18名患者中，对31条肾静脉进行了重复测量。对在3分钟内进行的第一次（x）和第二次（u）测量进行了比较。两者之间的相关性非常好（r = 0.99；y = 1.03x - 11.48）。在12名患者中，在通过对氨基马尿酸清除率测量血流量的同时，对双侧肾静脉血流量进行了测量。通过热稀释法测量的总血流量（y）与通过清除率法测量的总血流量（x）之间的相关性良好（r = 0.98；y = 0.79x + 221）。得出的结论是，热稀释法需要对肾静脉进行插管，但操作简单、成本低廉且结果可靠。当需要在研究肾血流动力学的急性变化时进行重复测量时，它特别有利。
