超声评估早产儿胸腺大小：初步报告
Thymus size in preterm infants evaluated by ultrasound. A preliminary report.
作者信息
Hasselbalch H, Jeppesen D L, Ersbøll A K, Nielsen M B
机构信息
Department of Radiology, Hvidovre Hospital, Denmark.
出版信息
Acta Radiol. 1999 Jan;40(1):37-40. doi: 10.1080/02841859909174400.
PURPOSE
To sonographically evaluate the thymic size in preterm infants.
MATERIAL AND METHODS
In 6 healthy infants, born in gestational weeks 34-37, and 6 infants born in weeks 24-32, the thymic volume estimate (the thymic index) was assessed. The measurements were compared to the estimates calculated from the prediction model for neonates.
RESULTS
The slightly preterm infants fit the prediction model. In cases where the results failed to fit into the model, it was adjusted in order to cover lower birth rates. The extremely preterm infants initially had a very low thymic index but, when healthy, they reached the normal range.
CONCLUSION
With the knowledge of the birth weight it is now possible to predict the thymic size in healthy infants weighing 2,070 g or more.
目的
通过超声评估早产儿的胸腺大小。
材料与方法
对6名孕34 - 37周出生的健康婴儿和6名孕24 - 32周出生的婴儿进行胸腺体积估计（胸腺指数）评估。将测量结果与根据新生儿预测模型计算出的估计值进行比较。
结果
轻度早产儿符合预测模型。在结果不符合模型的情况下，对模型进行了调整以涵盖更低的出生率。极早产儿最初胸腺指数非常低，但健康时会达到正常范围。
结论
了解出生体重后，现在有可能预测体重2070克及以上健康婴儿的胸腺大小。
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