Arthurs O J, Murray M, Zubier M, Tooley J, Kelsall W
Department of Radiology, Addenbrooke's Hospital, Cambridge, UK.
Arch Dis Child Fetal Neonatal Ed. 2008 Nov;93(6):F451-4. doi: 10.1136/adc.2007.129221. Epub 2008 Feb 19.
To determine by ultrasound (US) the spinal canal depth (SCD) in neonates and subsequently establish a nomogram and simple formula for calculating this distance.
116 US measurements were performed by two investigators in 105 neonates at the L3/4 intervertebral space. Both anterior and posterior spinal canal depth were measured and mid-spinal canal depth (MSCD) calculated. Measurements of intra- and interobserver variability were also performed.
A clear relationship was found between body weight (W, kg) and all SCD measurements in neonates. In particular, MSCD = 2.2 W + 6.89 mm (R(2) correlation coefficient 0.76), approximated by 2 W + 7 mm.
SCD measurements are easily determined by US in neonates, with good correlation between weight and MSCD.
通过超声(US)测定新生儿的椎管深度(SCD),并随后建立用于计算该距离的列线图和简单公式。
两名研究人员对105例新生儿的L3/4椎间隙进行了116次超声测量。测量了椎管前后深度,并计算了椎管中部深度(MSCD)。还进行了观察者内和观察者间变异性的测量。
发现新生儿体重(W,kg)与所有SCD测量值之间存在明显关系。特别是,MSCD = 2.2W + 6.89毫米(R²相关系数0.76),近似为2W + 7毫米。
超声可轻松测定新生儿的SCD,体重与MSCD之间具有良好的相关性。