Dmitrienkov B N, Kovarskiĭ S L, Misochko I V, Kolgin A P, Andronov S V
Med Radiol (Mosk). 1983 May;28(5):50-4.
The renal blood circulation was studied in 17 children aged 3 to 14 using a method of adaptive simulation of the organ blood flow. The main condition for radiorenoangiography is to place correctly a gamma-chamber of the heart, lungs and kidneys in the field of vision of the crystal. It is a requisite condition for the calculation of absolute and relative renal perfusion depending on the cardiac ejection. If a patient's body size does not make it possible to have the heart and kidneys in the field of vision of the collimator at a time, one can choose the spleen as the "model" organ. The analysis of angiographic results has shown that the share of the cardiac ejection which is responsible for the renal circulation and organ function respectively, is quite a stable value that is not associated with a patient's age and body mass. Irrespective of the state of the central hemodynamics and a patient's age, the most objective information on renal perfusion proceeds from an analysis of relative indices (or perfusion indices) that are calculated on the basis of the cardiac ejection expressed in percentage (or another model organ).
采用器官血流自适应模拟方法,对17名3至14岁儿童的肾血液循环进行了研究。放射性肾血管造影的主要条件是将心脏、肺和肾脏的γ室正确放置在晶体视野内。这是根据心脏射血计算绝对和相对肾灌注的必要条件。如果患者的体型使得无法同时将心脏和肾脏置于准直器视野内,则可选择脾脏作为“模型”器官。血管造影结果分析表明,分别负责肾循环和器官功能的心脏射血份额是一个相当稳定的值,与患者的年龄和体重无关。无论中心血流动力学状态和患者年龄如何,关于肾灌注的最客观信息来自基于以百分比表示的心脏射血(或另一个模型器官)计算的相对指标(或灌注指标)的分析。