Eggert P, Debus F, Kreller-Laugwitz G, Oppermann H C
Children's Hospital, University of Kiel, FRG.
Pediatr Radiol. 1991;21(2):111-3. doi: 10.1007/BF02015619.
The sonograms of 115 infants with normal renal function ranging in age from 1 to 120 days used to determine renal parenchymal echogenicity by densitometry. The measured values were contrasted with the evaluations of 4 independent examiners who rated renal echogenicity as "less than", "equal to" or "greater than" that of the liver. The results revealed that naked eye evaluation does not permit a clear distinction between the categories of echogenicity and also that the assessments of the individual examiners differed considerably. Contrary to the previously held view the present findings indicate that the initially increased renal parenchymal echogenicity in neonates has developed into the normal hypoechoic condition after 1 month. One should take these findings into account when evaluating renal sonograms of infants, especially if no densitometric data are available.
对115例年龄在1至120天、肾功能正常的婴儿进行超声检查，通过密度测定法确定肾实质回声。将测量值与4名独立检查者的评估结果进行对比，这4名检查者将肾回声评定为“低于”、“等于”或“高于”肝脏回声。结果显示，肉眼评估无法清晰区分回声类别，而且各检查者的评估差异很大。与之前的观点相反，目前的研究结果表明，新生儿最初肾实质回声增强在1个月后已发展为正常的低回声状态。在评估婴儿肾脏超声图时应考虑这些发现，尤其是在没有密度测定数据的情况下。
