Reference values for renal size obtained from MAG3 scintigraphy.
Reference values for renal size obtained from MAG3 scintigraphy.
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DOI：
10.1097/rlu.0b013e318270866f
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发表时间：
2013-01
影响因子：
10.6
通讯作者：
Manatunga A
中科院分区：
文献类型：
--
作者：
Taylor AT;Shenvi N;Folks RD;Garcia EV;Baruch BS;Manatunga A
本研究的目的是建立99 mTc-MAG 3肾动脉造影测定的肾脏大小的参考值，并推导回归方程以预测正常范围。研究人群包括106例接受99 mTc-MAG 3肾动脉造影术的受试者。肾脏长度、宽度和面积由感兴趣的整个肾脏区域的像素长度和面积确定，并与患者性别、身高、体重、体重指数和体表面积（BSA）相关。通过分位数回归，根据上下限估计值获得参考值。男性患者的平均（SD）左肾和右肾长度分别为12.2（1.0）和12.1（1.0），女性患者分别为11.9（0.9）和11.8（0.9）。在分位数回归模型中，性别不是一个显著因素。定义肾脏长度（cm）和面积（cm 2）的下限和上限的回归方程如下：（第5百分位数），8.2 + 1.3 × BSA;左肾长度（第95百分位数），9.1 + 2.3 × BSA;右肾长度（第5百分位数），8.8 + 1.0 × BSA;右肾长度（第95百分位数），11.1 + 1.4 × BSA;左肾面积（第5百分位数），32.5 + 9.6 × BSA;左肾面积（第95百分位数），12.6 + 31.7 × BSA;右肾面积（第5百分位数），16.1 + 18.5 × BSA;右肾面积（第95百分位数），32.6 + 22.2 × BSA。回归方程已经开发，它定义了99 mTc-MAG 3图像的肾脏大小的上限和下限，并可能有助于检测意外的双边增加或减少肾脏大小。
The purposes of this study were to establish reference values for renal size determined from 99mTc-MAG3 renal scintigraphy and to derive regression equations to predict normal limits. The study population consisted of 106 subjects evaluated for kidney donation who underwent 99mTc-MAG3 renal scintigraphy. Renal length, width, and area were determined from the pixel length and area of whole-kidney regions of interest and correlated with patient sex, height, weight, body mass index, and body surface area (BSA). Reference values were obtained based on estimation of the lower and upper percentiles via quantile regression. The mean (SD) left and right kidney lengths was 12.2 (1.0) and 12.1 (1.0) in male and 11.9 (0.9) and 11.8 (0.9) in female patients, respectively. Sex was not a significant factor in the quantile regression models. Regression equations defining the lower and upper limits of renal length (cm) and area (cm2) are as follows: left kidney length (5th percentile), 8.2 + 1.3 × BSA; left kidney length (95th percentile), 9.1 + 2.3 × BSA; right kidney length (5th percentile), 8.8 + 1.0 × BSA; right kidney length (95th percentile), 11.1 + 1.4 × BSA; left kidney area (5th percentile), 32.5 + 9.6 × BSA; left kidney area (95th percentile), 12.6 + 31.7 × BSA; right kidney area (5th percentile), 16.1 + 18.5 × BSA; right kidney area (95th percentile), 32.6 + 22.2 × BSA. Regression equations have been developed, which define the upper and lower limits of renal size from 99mTc-MAG3 images and may assist in the detection of unsuspected bilateral increases or decreases in renal size.