Link D P, Lantz B M, Foerster J M, Holcroft J W, Reid M H
Invest Radiol. 1979 Nov-Dec;14(6):465-70. doi: 10.1097/00004424-197911000-00004.
A contrast medium was injected in the aortic arch and selectively in a renal artery to estimate the renal blood flow as a percentage of the cardiac output by the videodensitometric (VD) method. Twenty-six paired VD measurements in four mongrel dogs were obtained and the results compared to electromagnetic (EM) flow readings from the aortic arch and a renal artery. The relative renal blood flow estimated by the VD method averaged 9.1% and correlated with the EM flow average of 9.6% with r = 0.96. Previous in vitro investigations of relative flow in a model have now been validated in vivo. These results suggest that videodensitometry could be a clinical tool for measuring renal blood flow in conjunction with routine arteriography.
将造影剂注入主动脉弓，并选择性地注入肾动脉，通过视频密度测定法（VD）估计肾血流量占心输出量的百分比。在四只杂种狗身上进行了26对VD测量，并将结果与主动脉弓和肾动脉的电磁（EM）流量读数进行比较。通过VD方法估计的相对肾血流量平均为9.1%，与EM流量平均值9.6%相关，r = 0.96。之前在模型中进行的相对流量体外研究现已在体内得到验证。这些结果表明，视频密度测定法可作为一种临床工具，与常规血管造影术结合用于测量肾血流量。
