Department of Physical Medicine and Rehabilitation, College of Medicine, Yeungnam University, Republic of Korea.
Neurosci Lett. 2012 Jan 6;506(1):146-8. doi: 10.1016/j.neulet.2011.10.069. Epub 2011 Nov 6.
The superior longitudinal fasciculus (SLF) I is known to be involved in regulation of higher aspects of motor function. Using diffusion tensor imaging (DTI), we attempted to identify the SLF I and to investigate the anatomical characteristics of the SLF I in the human brain. We recruited 30 healthy subjects for this study. The SLF I was obtained using the FMRIB Software Library. The seed region of interest (ROI) was given at the superior parietal lobule (SPL) and the target ROI was the supplementary motor area (SMA) along with the dorsal part of the premotor area (PMA). Values of fractional anisotropy (FA), mean diffusivity (MD), and tract volume were measured. The SLF I originated from the SPL and medial parietal cortex, passed through the white matter of the SPL and superior frontal gyrus, and then terminated in the SMA and dorsal PMA. There were no significant differences between hemispheres in terms of the FA, MD, and tract volume. We present with the anatomical characteristics of the SLF I in the human brain using DTI. We think that the methodology and results of this study would be helpful to researchers in this field.
上纵束（SLF）I 已知与运动功能的较高方面的调节有关。我们使用弥散张量成像（DTI）来识别 SLF I，并研究人类大脑中 SLF I 的解剖特征。我们招募了 30 名健康受试者进行这项研究。使用 FMRIB 软件库获得 SLF I。感兴趣区（ROI）的种子位于顶叶上回（SPL），目标 ROI 是沿着运动前区（PMA）的背侧的辅助运动区（SMA）。测量各向异性分数（FA）、平均扩散系数（MD）和束流体积。SLF I 起源于 SPL 和顶内侧面，穿过 SPL 和额上回的白质，然后终止于 SMA 和背侧 PMA。在 FA、MD 和束流体积方面，半球之间没有显著差异。我们使用 DTI 呈现了人类大脑中 SLF I 的解剖特征。我们认为，这项研究的方法和结果将有助于该领域的研究人员。
