Brain surface cortical sulcal lengths: quantification with three-dimensional MR imaging.
Brain surface cortical sulcal lengths: quantification with three-dimensional MR imaging.
复制标题
脑表面皮质沟长度：利用三维 MR 成像进行量化。
DOI：
10.1148/radiology.180.2.2068316
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发表时间：
1991
期刊：
影响因子：
19.7
通讯作者：
Yoffie,RL
中科院分区：
文献类型：
--
作者：
Vannier,MW;Brunsden,BS;Hildebolt,CF;Falk,D;Cheverud,JM;Figiel,GS;Perman,WH;Kohn,LA;Robb,RA;Yoffie,RL
对三维(3D)体积型、梯度回波磁共振(MR)图像测量脑表面皮质沟长度的可重复性和准确性进行了测试。八名健康的成年志愿者和一具身体的大脑在冠状面和矢状面上都进行了成像，得到了128个1.5-2.0毫米厚的连续切片。用计算机软件对大脑皮质表面进行三维重建。在每个重建图像上重复测量表面沟的位置和距离。用3D电磁数字化仪对身体大脑中相同的结构进行独立测量，以验证3D MR成像方法的结果。重建图像的所有测量都具有很高的重复性，并且在测量试验之间没有统计学上的显著差异。3DMR测量的精确度也较好，数字化测量结果与3DMR测量结果之间的平均差异为0.81 cm(平均5.45~12.9 cm)。
The repeatability and accuracy of brain surface cortical sulcal length measurements obtained with three-dimensional (3D) reconstructions of volumetric, gradient-echo magnetic resonance (MR) images were tested. The brains of eight healthy adult volunteers and one cadaver were imaged in both the coronal and sagittal planes to yield a set of 128 1.5-2.0-mm-thick contiguous sections. 3D reconstructions of the brain cerebral cortical surfaces were obtained with computer software. Location and distance measurements of surface sulci were repeated on each reconstructed image. The same structures in the cadaver brain were independently measured with a 3D electromagnetic digitizer to validate the results of the 3D MR imaging method. All measurements from reconstructed images had high repeatability, and there were no statistically significant differences between measurement trials. The accuracy of measurements with 3D MR imaging was also good; the mean difference between digitizer and 3D MR measurements for sulcal lengths was 0.81 cm (average, 5.45-12.9 cm).