Dana A, Morvan G, Michel J R
J Radiol. 1981 Apr;62(4):227-33.
A prospective study was conducted, in order to establish the precise "arterial time" during intravenous urography, by employing a very precise technique in three groups of patients. The first group had a standard film taken, centered on the kidneys during "arterial time", after the intravenous injection of a contrast medium bolus, followed by a second film with the same centering as rapidly as possible after the previous film. Zonography during "arterial time" in the plane of the arteries was conducted in the second group, and this was followed by three successive tomographic sections in the parenchymatous planes as rapidly as possible. A third group, acting as controls, had a simple film taken, centered on the kidneys during ideal "nephrographic time" (arterial time + 10 seconds). A double-blind technique was used to analyse the results. The arterial film of intravenous urography, whatever the technique employed, has several inconveniences and, above all, certain limitations. Though it is of undoubted value in some cases, it should be employed with caution in certain precise cases, and should not be given an absolute definitive value without due reflection. The interest of a urography examination, which may not have detected a lesion, should not be underestimated, as it can still supply very explicit information suggesting the presence of a renal artery disorder.
为了确定静脉肾盂造影期间精确的“动脉期”，对三组患者采用非常精确的技术进行了一项前瞻性研究。第一组在静脉注射造影剂团注后的“动脉期”，拍摄一张以肾脏为中心的标准片，然后尽快在与前一张片相同的中心位置拍摄第二张片。第二组在“动脉期”进行动脉平面的分区造影，随后尽快在实质平面进行连续三张断层扫描。第三组作为对照组，在理想的“肾实质期”（动脉期+10秒）拍摄一张以肾脏为中心的简单片子。采用双盲技术分析结果。静脉肾盂造影的动脉期片，无论采用何种技术，都有一些不便之处，最重要的是有一定的局限性。虽然它在某些情况下具有毋庸置疑的价值，但在某些特定情况下应谨慎使用，未经充分思考不应赋予其绝对的决定性价值。不应低估可能未检测到病变的肾盂造影检查的意义，因为它仍可提供非常明确的信息提示肾动脉疾病的存在。
