Elkin M
Radiology. 1975 Aug;116(02):259-70. doi: 10.1148/116.2.259.
This paper reviews some of the fundamental technical and diagnostic problems in clinical uroradiology, such as (a) the reason for the obstructive nephrogram; (b) why high-dose urography gives better studies than low-dose; (c) why the Trueta phenomenon has not been demonstrated in man; (d) the case for an intrarenal arterial collateral pathway via the pericalyceal network (these vessels can be demonstrated in man and must not be misinterpreted as tumor vessels or vascular malformations). One of the most baffling problems sometimes occurs with the sudden partial block of a single segmental vessel: the kidney ceases to excrete urine and eventually becomes atrophic even though some excretory function returns. To date, there is no satisfactory explanation for this course of events.
本文综述了临床泌尿系统放射学中的一些基本技术和诊断问题，例如：（a）梗阻性肾图的成因；（b）为什么大剂量尿路造影比小剂量造影效果更好；（c）为什么特鲁埃塔现象在人类中未得到证实；（d）关于通过肾盏周围网络形成肾内动脉侧支通路的情况（这些血管在人类中可以显示出来，绝不能被误诊为肿瘤血管或血管畸形）。最令人困惑的问题之一有时发生在单个节段血管突然部分阻塞时：即使部分排泄功能恢复，肾脏也会停止排尿，最终萎缩。迄今为止，对于这一系列事件尚无令人满意的解释。
