Lewis E, Ritchie W G
J Clin Ultrasound. 1980 Oct;8(5):417-20. doi: 10.1002/jcu.1870080505.
The relation between renal length (L) and the distance between the first four lumbar transverse processes, (4TP) as measured by sonography and intravenous urography, has been studied in 20 adults with normal urograms. The ratio of L/4TP (Mean +/- 2.S.D.) was 1.04 +/- 0.22 for sonograms and 1.25 +/- 0.26 for urograms. The possible reasons for these differences are discussed. It is suggested that measurement of the distance between the 4TP is a simple method for estimating expected normal renal size in patients referred for renal ultrasonography.
通过超声检查和静脉肾盂造影术，对20名静脉肾盂造影正常的成年人肾脏长度（L）与前四个腰椎横突之间的距离（4TP）的关系进行了研究。超声检查的L/4TP比值（平均值±2标准差）为1.04±0.22，静脉肾盂造影的比值为1.25±0.26。讨论了这些差异的可能原因。建议测量4TP之间的距离是一种简单的方法，用于估计接受肾脏超声检查患者的预期正常肾脏大小。
