Dana A, Ody B, Rethers C, Moreau J F, Michel J R
J Urol (Paris). 1982;88(5):271-4.
The authors studied using two echographies 90 kidneys in 53 patients free of known urinary tract pathology and not suffering from renal colic, the first immediately before intravenous urography (at a stage of relative fluid restriction) and the second before micturition (at a stage of higher urine output and filling of the bladder). Findings were as follows: - normal excretory cavities may be seen by echotomography, this being in contrast to a widely held view; - changes in the echographic appearance of the pyelocalyceal cavities may occur in the absence of any pathology merely as a result of changes in urine output. They draw attention to the possible errors inherent in echotomography performed alone. They emphasise the need, at least in the absence of renal insufficiency, to preceed any echography by intravenous urography.
作者对53例无已知尿路病变且无肾绞痛的患者的90个肾脏进行了两次超声检查，第一次在静脉尿路造影前即刻（处于相对液体限制阶段），第二次在排尿前（处于较高尿量和膀胱充盈阶段）。结果如下： - 超声断层扫描可显示正常的排泄腔，这与普遍观点相反； - 肾盂肾盏腔的超声表现改变可能在无任何病变的情况下仅因尿量变化而发生。他们提请注意单独进行超声断层扫描可能存在的固有误差。他们强调，至少在无肾功能不全的情况下，在进行任何超声检查之前应先进行静脉尿路造影。
