Spleen size: how well do linear ultrasound measurements correlate with three-dimensional CT volume assessments?
Spleen size: how well do linear ultrasound measurements correlate with three-dimensional CT volume assessments?
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DOI：
10.1259/bjr.75.895.750573
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发表时间：
2002-07-01
影响因子：
2.6
通讯作者：
Reznek, RH
中科院分区：
文献类型：
--
作者：
Lamb, PM;Lund, A;Reznek, RH
超声测量脾脏长度是标准做法，但尚不清楚这在多大程度上代表了脾脏的真实大小。之前的研究结合了体内脾脏和切除脾脏的测量结果，但由于脾脏大小的变化而存在误差。本研究的目的是将超声测量的脾脏尺寸与螺旋 CT 测量的脾脏体积关联起来。 50 名成年患者在接受腹部 CT 检查时进行了超声检查。首先测量患者仰卧位，然后采用右侧卧位 (RLD) 位置时测量脾脏的线性尺寸。通过 CT 图像的三维重建计算脾体积。使用 Spearman 等级相关性，超声测量值和 CT 体积之间存在良好的相关性，除一个参数外，所有参数的相关系数均超过 0.7。与 CT 体积最密切相关的线性测量是在患者处于 RLD 位置的纵向切片上测量的脾脏宽度（相关系数 (r)=0.89，p
Ultrasound measurement of splenic length is standard practice, but it is not known how well this represents the true size of the spleen. Previous studies, using a combination of measurements from in vivo and resected spleens, were subject to error because of changes in splenic size. The aim of this study was to correlate the dimensions of the spleen measured by ultrasound with the splenic volume measured by helical CT. Ultrasound examination was performed on 50 adult patients at the time of their attendance for abdominal CT. Linear dimensions of the spleen were measured with the patient first in the supine and then in the right lateral decubitus (RLD) position. The splenic volume was calculated from a three-dimensional reconstruction of the CT images. There was good correlation, using Spearman's rank correlation, between ultrasound measurements and CT volumes with correlation coefficients exceeding 0.7 for all parameters except one. The linear measurement that correlated most closely with CT volume was the spleen width measured on a longitudinal section with the patient in the RLD position (correlation coefficient (r)=0.89, p