Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, Japan.
Magn Reson Med Sci. 2011;10(1):59-63. doi: 10.2463/mrms.10.59.
Conventional single-tensor tractography cannot depict the entire motor tract of the corticospinal tract because of fiber-crossing and other factors. Using a 3-tesla magnetic resonance (MR) unit, we compared single- and multi-tensor methods for the tract ratio of the 5 major components of the motor pathway, the lower extremity, trunk, hand, face, and tongue, in 5 healthy volunteers. Multi-tensor tractography is better than single-tensor tractography at 3T in depicting more fibers of non-trunk areas from the primary motor cortex.
常规的单张量纤维束追踪技术由于纤维交叉等因素，无法完整描绘皮质脊髓束。我们使用 3T 磁共振（MR）仪，在 5 名健康志愿者中比较了单张量和多张量方法在下肢、躯干、手、面和舌这 5 个运动通路主要成分的束比。在 3T 中，多张量纤维束追踪技术比单张量纤维束追踪技术能更好地描绘来自初级运动皮层的非躯干区域的更多纤维。
