Garcia-Peña B M, Keller M S, Schwartz D S, Korsvik H E, Weiss R M
Department of Diagnostic Radiology, Yale University School of Medicine, New Haven, Connecticut, USA.
J Urol. 1997 Aug;158(2):560-5.
We identified sonographic prognosticators to aid in distinguishing obstructive from nonobstructive hydronephrosis in children.
Twelve sonographic variables were initially analyzed to determine significant associations between the variables and the presence of urinary tract obstruction as defined by diuretic radionuclide renography. The significant findings were subsequently subjected to logistic regression models to identify potential predictors for obstructive hydronephrosis.
The 7 variables associated with a significantly higher risk of urinary tract obstruction were increased echogenicity, parenchymal rims 5 mm. or less, contralateral hypertrophy, resistive index ratio 1.10 or greater, resistive index difference with diuresis of 70% or greater, ureter diameter 10 mm. or greater and aperistaltic ureter. These variables were used for the development of a multivariate scoring system.
The obstructive scoring system shows promise as a screening method for the sonographic differentiation of obstructive from nonobstructive hydronephrosis in children.
我们确定超声检查的预后指标，以帮助区分儿童梗阻性与非梗阻性肾积水。
最初分析了12个超声变量，以确定这些变量与利尿放射性核素肾造影所定义的尿路梗阻之间的显著关联。随后将这些显著发现纳入逻辑回归模型，以确定梗阻性肾积水的潜在预测指标。
与尿路梗阻风险显著升高相关的7个变量为：回声增强、实质边缘5毫米或更小、对侧肾肥大、阻力指数比1.10或更高、利尿时阻力指数差值70%或更高、输尿管直径10毫米或更大以及输尿管无蠕动。这些变量用于开发多变量评分系统。
梗阻性评分系统有望作为一种超声检查方法，用于区分儿童梗阻性与非梗阻性肾积水。
