Maillet P J, Pelle-Francoz D, Laville M, Gay F, Pinet A
Radiology. 1986 Sep;160(3):659-62. doi: 10.1148/radiology.160.3.3526405.
We examined 80 patients with acute obstructive anuria by ultrasound (US). Four of the 80 patients did not have dilatation of the urinary tract. In all four cases, antegrade pyelography guided by real-time US demonstrated urinary tract obstruction after the four patients had experienced 4, 5, 8, and 34 days of anuria, respectively. Diuresis occurred as a result of percutaneous nephrostomy in all four cases. Three of the patients were successfully treated by percutaneous techniques alone. Our findings demonstrate that even a complete and long-term obstruction of the urinary tract does not necessarily induce dilatation in the upper part of the tract. In such cases, only the direct opacification of the urinary tract can help confirm that the obstruction is present. Even in the absence of dilatation, antegrade pyelography guided by real-time US is a possible diagnostic method and can be the first step in the performance of percutaneous nephrostomy.
我们通过超声（US）检查了80例急性梗阻性无尿患者。80例患者中有4例尿路未扩张。在所有这4例病例中，实时超声引导下的顺行肾盂造影显示，这4例患者分别在无尿4天、5天、8天和34天后出现尿路梗阻。所有4例病例经皮肾造瘘后均出现利尿。其中3例患者仅通过经皮技术就成功得到治疗。我们的研究结果表明，即使尿路完全且长期梗阻，也不一定会导致上尿路扩张。在这种情况下，只有尿路的直接显影才能有助于确认梗阻的存在。即使在没有扩张的情况下，实时超声引导下的顺行肾盂造影也是一种可行的诊断方法，并且可以作为进行经皮肾造瘘的第一步。
